Hamid Mohammed Mahan currently works at the materials Engineering, mechanical Department, Baqubah Technical Institute- Middle Technical University. Hamid does research in Materials Engineering
EDUCATION
PhD. Materials Engineering
RESEARCH, TEACHING, or OTHER INTERESTS
General Materials Science, Mechanical Engineering
22
Scopus Publications
243
Scholar Citations
10
Scholar h-index
11
Scholar i10-index
Scopus Publications
EVALUATING MECHANICAL AND THERMAL PROPERTIES OF CONSTRUCTION EPOXY/TIRE PYROLYTIC POWDER COMPOSITE Ahmed H. Ali, Hamid Mahan, Huda S. Mahdi Materiali in Tehnologije, 2026 In line with global sustainability objectives, the incorporation of manufacturing byproducts into various materials to develop composite materials not only aims to enhance performance and reduce the costs of raw materials, but also promotes environmental responsibility in manufacturing processes. This investigation used different weight fractions (0, 1, 2, 3 and 5) % of micro-sized tire pyrolytic powder (TPP) for reinforcing a particular epoxy resin designed for construction purposes. Using the hand lay-up technique, composite specimens were fabricated and examined to evaluate the influence of TPP as a reinforcing phase on the thermal and mechanical characteristics of the epoxy. Particle size analysis, scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), and Fourier transform infrared spectroscopy (FTIR) were performed to characterize TPP. Furthermore, tests such as Shore D hardness, tensile strength, three-point bending strength, impact strength, and thermal conductivity were conducted to assess enhancements in the composite’s performance. The test results show that the mean particle size of TPP was 1.27 µm, with a narrow size variation of 0.005 µm. EDX and FTIR tests show that TPP consists of a wide variety of metal oxides added to carbon black. The findings also demonstrate significant improvements in tensile and flexural strength, by roughly 87.5 % and 72.2 %, respectively, compared with non-reinforced specimens, with the optimal performance at 3 w/% TPP. Beyond this TPP concentration, the strength began to decline. The hardness, impact strength and thermal conductivity were found to increase markedly at 5 w/% TPP, by approximately (14.8, 350 and 86.5) %, respectively.
An investigation into the microstructure of coating defects produced in a zinc melt with aluminum additives Bondareva Olga Sergeevna, Hamid M. Mahan, Sherwan Mohamed Najm, Tomasz Trzepiecinski Kovove Materialy, 2025 This study aims to investigate the structure and chemical composition of zinc-aluminum coatings with a grain defect.Defects and irregularities, such as localized thickening and adhered "grains," were noticed in the coating obtained from the Zn + 7 wt.%Al melts at 480 C. As a solution, it was observed that the galvanizing temperature range of 410-460 C maintains a thickness of 8-13 m.At 480 C, the coating thickness increases to 35-40 microns, and local defects in the form of grains measuring 110-120 microns appear.By analyzing the binary systems Al-Fe, Fe-Zn, and Zn-Al, and the ternary system Zn-Al-Fe, conclusions were drawn about the phase composition of the defect and the possible reasons for its occurrence.Finally, the steps to rectify this issue have been outlined.K e y w o r d s : hot-dip galvanizing, Zn-Fe-Al system, Zn-Al coating, microstructure, intermetallic dross, coating defect
Analyzing thermal insulation of concrete polymer by adding mineral wool Hamid M. Mahan, Ali Katawy, Omran A. Shabeeb, Ahmed A.A.G. Alrubaiy Advances in Science and Technology Research Journal, 2025 Modifying concrete with polymers offers numerous benefits, leading to more efficient, durable, and sustainable building practices, as well as energy savings for heating and cooling purposes.When selecting a polymer or polymer-modified concrete for a specific application, it is crucial to consider the desired properties and performance characteristics to achieve optimal results.In this research, the effect of adding rock wool and sand to a polyestercement mixture on compressive strength and thermal insulation was studied by creating four different samples.The first sample consisted of 70% cement and 30% polyester.The second sample included 60% cement, 20% polyester, and 20% sand, without rock wool.The third sample comprised 60% cement, 19% polyester, 19% sand, and 2% rock wool.The fourth sample contained 58% cement, 19% polyester, 19% sand, and 4% rock wool.The results indicated that the basic sample (70% cement and 30% polyester) had a compressive strength of 74.233 MPa and the highest thermal conductivity of 0.7079 W/mK.Among the three modified samples, the second sample (20% sand without rock wool) achieved the highest compressive strength of 89.34 MPa.Conversely, the fourth sample, with 4% rock wool, demonstrated the lowest thermal conductivity values, making it the best sample for thermal insulation.This superior insulation performance is attributed to the inclusion of rock wool, which has excellent thermal insulation properties, helping maintain stable internal temperatures and reduce energy costs in buildings.
Enhancing mechanical properties of 2024-Aluminium Alloy Matrix Composite strengthened by Y2O3 ceramic particles Mhmood Salim Hassoon, İsmail H. Kara, Ahmed H. Ali, Hamid M. Mahan International Journal of Nanoelectronics and Materials, 2024 The development of high-strength, low-weight composite materials has been a high-priority demand in the structural, aerospace, automotive, renewable energy, and sports equipment sectors. Micro-particle size Yttrium oxide (Y2O3) has been utilized to enhance the microstructure and mechanical characteristics of the 2024-Al alloy. The stir-casting technique is employed to prepare 2024-Al alloy and aluminum matrix composites (AMCs) with different Y2O3 weight fractions (1 %, 2 %, and 3 %). Scanning electron microscope ESM with EDS analysis and optical microscope imaging have been used to assess the development in the microstructure of AMCs. Furthermore, optical microscope images have been analyzed by using image processing software, ImageJ to evaluate development in microstructure grain size. Vickers' micro-hardness, tensile strength, elongation, and wear-resistant tests were conducted to assess the mechanical properties of AMCs. AMC image analysis results demonstrated a significant reduction in microstructure grain size. The highest reduction in grain size was recorded when adding 2 wt. % of Y2O3, which was approximately 22.5 % smaller than that of the plain alloy. Other mechanical test results demonstrated an increase in the hardness and tensile strength of AMCs compared with the plain alloy by approximately 58 % and 116 %, respectively, upon the addition of 2 wt. % of Y2O3, also tensile test shows increasing of AMCs elongation at failure point with increasing Y2O3 content, 132 % upon adding 3 wt. %. Finally, wear tests show a decrease in the AMC wear rate with an increasing Y2O3 weight fraction compared to the plain alloy.
Residual Stresses Characterization of Hard Ceramic Coating (SiC-5wt%Al2O3) Using X-Ray Diffraction Technique Samah R. Hassan, Mudhar. A. Al-Obaidi, Hamid M. Mahan, Konovalov Sergey Journal of Techniques, 2024 The aim of this study is to measure residual stresses, specifically in wear protection coating, using the sin2ψ based on the X-ray diffraction technique. The combination of silicon carbide substrate and aluminium oxide (SiC-5wt.% Al2O3) is used as the wear protection coating, and AlNi alloy represents the bond coat, which is formed by the flame spraying method on the mild steel substrate. This in turn has enabled to reduce the thermal expansion constant between the substrate and composite ceramic layer. The diffraction angle, 2θ, is measured experimentally, and the lattice spacing is calculated using Bragg's Law using the measured diffraction angle and the known X-ray wavelength. Interestingly, stress calculations for the samples demonstrate a linear relationship of a slop proportionate to stress same as to homogenous isotropic samples in a bi-axial stress. Thus, the relationship between dspacing and sin2ψ is demonstrated as a straight line with a slope proportional to stress. However, the oscillatory trend showed the existence of in-homogeneous stress distribution. To resolve this challenge, X-ray elastic parameters are deployed instead of Poisson ratio (ν) and Young's modulus (E) values. The value of the residual stresses for these coatings calculated is compressive residual stresses of (-594.029 MPa).
THE EFFECT OF SILICON-CARBIDE ADDITIONS ON THE MECHANICAL AND THERMAL CONDUCTIVITY PROPERTIES OF FIBER-REINFORCED EPOXY COMPOSITES Nadhir Abd. Rashid, Hamid M. Mahan, Omran A. Shabeeb Materiali in Tehnologije, 2024 This study investigates the impact of adding silicon carbide (SiC) filler with various weight percentages on the mechanical and thermal properties of carbon- and glass-fiber-reinforced epoxy composites. Alterations in the filler content were analyzed to observe the composite material’s response to loading, assessing mechanical properties such as hardness, impact resistance, tensile strength, flexural strength and thermal conductivity. The investigation focuses on composite materials comprising carbon fibers and glass fibers to enhance the binder material (epoxy resin). Accordingly, four different groups of samples were prepared for experimentation. The first group consisted solely of epoxy resin, while the second group of samples contained epoxy resin reinforced with 15 w/% SiC. The third and fourth groups of samples included three layers of glass fibers, with and without 15 w/% SiC reinforcement, respectively. In the fifth and sixth groups of samples there were three layers: one upper layer of glass fibers, one layer of carbon fiber in the middle, and one layer of glass fiber at the bottom, with and without 15 w/% SiC reinforcement, respectively. The experimental findings revealed that the sixth group of samples exhibited lower heat conductivity (with an overall reduction of 10.9 % compared to samples from other groups), while demonstrating the highest tensile strength, hardness, flexural strength values and impact resistance (showing improvements of 20 %, 50 %, 19.5 %, and 11 % respectively, compared to samples from other groups).
Effect of Aging Treatment and TiO2 Nano Particles Addition on the Microstructure and Mechanical Properties of 2024 Aluminum Alloy Hamid M. Mahan, , Konovalov Sergey, Nada M. Al-Nedawi, Ahmed H. Ali, , , and International Journal of Integrated Engineering, 2024 In this research, aluminum alloy 2024 was enhanced with varying mass percentages (0 wt. %, 2.5 wt. %, 5 wt. %, and 7.5 wt. %) of titanium dioxide nanoparticles through the stir casting technique. Subsequently, the material underwent a solution annealing process at 500 °C for a duration of 3 hours, followed by rapid cooling in water and aging at 175 °C for another 3 hours. The primary aim of this investigation was to examine the impact of incorporating TiO2 nanoparticles on both the microstructure and the mechanical properties of the 2024 aluminum alloy composite produced through the stir casting method. Scanning electron microscopy, energy-dispersive analysis, as well as X-ray diffraction analysis were implemented to characterize the microstructure, elemental and phase composition of the samples. The tensile and Vickers hardness tests were carried out to evaluate the mechanical properties. The results showed that the addition of 7.5 wt.% TiO2 nanoparticles increases the ultimate tensile strength by 37 % and elongation by 71 % while decreases the hardness by 14 % comparing with the initial alloy. The highest hardness was demonstrated in the alloy with 5 wt. % TiO2.
Increasing the Fatigue Life of VT1-0 Titanium under the Influence of a Constant Magnetic Field K. V. Aksenova, V. V. Shlyarov, D. V. Zagulyaev, Yu. F. Ivanov, H. M. Mohan Technical Physics Letters, 2024 Abstract High-cycle fatigue tests of VT1-0 titanium samples were carried out under conditions of exposure to a constant magnetic field of various magnitudes and without it. It is shown that the use of a constant magnetic field with induction B = 0.3, 0.4, and 0.5 T leads to a multiple increase in the average number of cycles before the destruction of titanium samples VT1-0 by 64, 123, and 163%, respectively. Using scanning electron microscopy, it was found that the structure of a sample destroyed under fatigue testing conditions, regardless of the test mode, has three characteristic zones: a fatigue crack growth zone, an accelerated crack growth zone, and a fracture zone. It was found that the width of the fatigue crack growth zone depends on the magnetic field induction and reaches its maximum values (h = 264 μm) at B = 0.4 T, and during fatigue tests without a magnetic field, h = 182 μm. This indicates an increase in the critical crack length (the width of the fatigue crack growth zone) by a factor of 1.45. It is shown that the average distance between fatigue striations in titanium samples depends on the value of the magnetic induction of the magnetic field and decreases from 0.78 μm in the absence of a field to 0.49 μm at B = 0.5 T. The formation of a subgrain (fragmented) structure in the zone of fatigue crack growth in a titanium sample was established. The subgrain sizes correspond to the distance between the fatigue striations, which has a retarding effect on the movement of a microcrack. Taken together, the revealed facts indicate a higher resistance of the material to the propagation of a fatigue crack and an increase in its service life during fatigue tests in a magnetic field.
Preparing Eco-friendly Composite from End-life Tires and Epoxy Resin and Examining Its Mechanical, and Acoustic Insulation Properties International Journal of Nanoelectronics and Materials, 2024
Enhancement of Mechanical Properties and Microstructure of Aluminium alloy AA2024 By adding TiO2 Nanoparticles International Journal of Nanoelectronics and Materials, 2023
Evaluating mechanical and thermal properties of construction epoxy/tire pyrolytic powder composite AH Ali, H Mahan, HS Mahdi Materials and Technology 60 (1), 61–68-61–68 , 2026 2026
Analyzing thermal insulation of concrete polymer by adding mineral wool HM Mahan, A Katawy, OA Shabeeb, AAAG Alrubaiy Advances in Science and Technology. Research Journal 19 (5) , 2025 2025 Citations: 8
Experimental study of vapor compression refrigeration system using mixing refrigerant (R290/R600a) compare with nano refrigerant (R600a/Al2O3) OA Shabeeb, HM Mahan, SV Konovalov, ... Advances in Science and Technology. Research Journal 19 (8) , 2025 2025 Citations: 1
An investigation into the microstructure of coating defects produced in a zinc melt with aluminum additives OS Bondareva, HM Mahan, SM Najm, T Trzepiecinski Kovove Mater 63, 263-270 , 2025 2025
The effect of silicon-carbide additions on the mechanical and thermal conductivity properties of fiber-reinforced epoxy composites NA Rashid, HM Mahan, OA Shabeeb Materials and Technology 58 (6), 793–799-793–799 , 2024 2024 Citations: 3
Residual Stresses Characterisation of Hard Ceramic Coating (SiC-5wt%Al2O3) Using X-Ray Diffraction Technique KS Samah R. Hassan, Mudhar. A. Al-Obaidi, Hamid M. Mahan JOURNAL OF TECHNIQUES 6 (3), 35-40 , 2024 2024 Citations: 10
Effect of heat treatment on some mechanical properties of AA2024 aluminum alloy HM Mahan, SV Konovalov, OA Shabeeb AIP Conference Proceedings 3105 (Issue 1), 060011 , 2024 2024 Citations: 3
Enhancing mechanical properties of 2024-Aluminium Alloy Matrix Composite strengthened by Y2O3 ceramic particles HMM Mhmood Salim Hassoon, İsmail H. Kara, Ahmed H. Ali International Journal of Nanoelectronics and Materials (IJNeaM) 17 (4), 570-575 , 2024 2024 Citations: 3
ИССЛЕДОВАНИЕ СТРУКТУРЫ И СВОЙСТВ АЛЮМОМАТРИЧНЫХ КОМПОЗИТОВ, АРМИРОВАННЫХ ЧАСТИЦАМИ TiO2 МХМ Махан «Самарский государственный технический университет» и на сайте: https … , 2024 2024
Mechanical and Metallurgical Properties Assessment for High Strength AA2024 After Annealing Heat Treatment IAP Hamid Mohammed Mahan, Sergey Valerievich Konovalov, Dashuang Liu, Nadhir ... Journal of Electrical Systems 20 (9s), 884-889 , 2024 2024
Effect of Aging Treatment and TiO2 Nano Particles Addition on the Microstructure and Mechanical Properties of 2024 Aluminum Alloy AHA Hamid M. Mahan, Konovalov Sergey, Nada M. Al-Nedawi International Journal of Integrated Engineering 16 (1), 35-44 , 2024 2024 Citations: 1
Increasing the Fatigue Life of VT1-0 Titanium under the Influence of a Constant Magnetic Field KV Aksenova, VV Shlyarov, DV Zagulyaev, YF Ivanov, HM Mohan Technical Physics Letters 50 (1), 13-18 , 2024 2024 Citations: 1
Experimental and Numerical Investigations of the Fatigue Life of AA2024 Aluminium Alloy-Based Nanocomposite Reinforced by TiO2 Nanoparticles Under the Effect of Heat Treatment HM Mahan, SV Konovalov, SM Najm, O Mihaela, T Trzepieciński International Journal of Precision Engineering and Manufacturing 25 (1), 141-153 , 2024 2024 Citations: 18
Preparing eco-friendly composite from end-life tires and epoxy resin and examining its mechanical, and acoustic insulation properties NMAN Jamal I. Abdulhameed, Ahmed H. Ali, İsmail H. Kara, Hamid M. Mahan ... International Journal of Nanoelectronics and Materials (IJNeaM) 17 (1), 1-6 , 2024 2024 Citations: 7
INFLUENCE OF HEAT TREATMENT AND NANOPARTICLES ON MICROSTRUCTURE AND MECHANICAL PROPERTIES OF ALUMINUM ALLOY HM Mahan Bulletin of the Siberian State Industrial University , 2023 2023
Mechanical Properties Hybrid Composite Glass Fiber, Kevlar Fiber Reinforcement with Nano Alumina H Mahan, S Konovalov, O Shabeeb AIP Conference Proceedings 2834 (1), 1-7 , 2023 2023 Citations: 3
The influence of TiO2 nanoparticles on the mechanical properties and microstructure of AA2024 aluminium alloy HM Mahan, SV Konovalov, K Osintsev, I Panchenko Materials and Technology 57 (4), 379–384-379–384 , 2023 2023 Citations: 11
Effect of heat treatment on the mechanical properties of the aluminium alloys AA2024 with nanoparticles HM Mahan, SV Konovalov, I Panchenko International Journal of Applied Science and Engineering 20 (2), 1-6 , 2023 2023 Citations: 29
ВЛИЯНИЕ НАНОЧАСТИЦ НА МИКРОСТРУКТУРУ СПЛАВА АА 2024 ХМ Махан НАУКА И ТЕХНОЛОГИИ: ПЕРСПЕКТИВЫ РАЗВИТИЯ И ПРИМЕНЕНИЯ, 21-25 , 2023 2023
Влияние термической обработки и наночастиц на микроструктуру и механические свойства алюминиевого сплава ХМ Махан Вестник Сибирского государственного индустриального университета, 98-106 , 2023 2023
MOST CITED SCHOLAR PUBLICATIONS
Effect of heat treatment on the mechanical properties of the aluminium alloys AA2024 with nanoparticles HM Mahan, SV Konovalov, I Panchenko International Journal of Applied Science and Engineering 20 (2), 1-6 , 2023 2023 Citations: 29
Mechanical properties of alumina nano-particles and glass fiber, Kevlar fiber reinforced composites HM Mahan, D Mahjoob, KI Mahmood Journal of Engineering and Applied Sciences 13 (21), 9096-9100 , 2018 2018 Citations: 22
The Effects of Titanium Dioxide (TiO2) Content on the Dry Sliding Behavior of AA2024 Aluminum Composite HM Mahan, S Konovalov, MA Al-Obaidi, I Panchenko Journal of Mechanical Engineering 20 (3), 239-261 , 2023 2023 Citations: 20
Experimental and Numerical Investigations of the Fatigue Life of AA2024 Aluminium Alloy-Based Nanocomposite Reinforced by TiO2 Nanoparticles Under the Effect of Heat Treatment HM Mahan, SV Konovalov, SM Najm, O Mihaela, T Trzepieciński International Journal of Precision Engineering and Manufacturing 25 (1), 141-153 , 2024 2024 Citations: 18
Enhancement of Mechanical properties and Microstructure of Aluminium alloy AA2024 By adding TiO2 nanoparticles HM Mahan, SV Konovalov, OA Shabeeb International Journal of Nanoelectronics and Materials 16 (3) , 2023 2023 Citations: 14
Effect of Hybrid Materials Configuration on The Mechanical Properties of Composites AA Khalaf, AKJ Hamid. M Mahan, Al-shamary, MM Hanon Journal of Applied Science and Engineering 25 (5), 873-880 , 2022 2022 Citations: 13
Formability, Mechanical and Chemical Properties Assessment for High Strength AA7075 Subjected to Annealing Heat Treatmen SVK Hamid M. Mahan Naseer Malik Abbas, Zahraa Thamer Abdulwahid, AsmaaAli ... Journal of Techniques 5 (1), 16-27 , 2023 2023 Citations: 12
The influence of TiO2 nanoparticles on the mechanical properties and microstructure of AA2024 aluminium alloy HM Mahan, SV Konovalov, K Osintsev, I Panchenko Materials and Technology 57 (4), 379–384-379–384 , 2023 2023 Citations: 11
Residual Stresses Characterisation of Hard Ceramic Coating (SiC-5wt%Al2O3) Using X-Ray Diffraction Technique KS Samah R. Hassan, Mudhar. A. Al-Obaidi, Hamid M. Mahan JOURNAL OF TECHNIQUES 6 (3), 35-40 , 2024 2024 Citations: 10
Mechanical and thermal conductive properties of natural and synthetic cellulose reinforced epoxy composites O Shabeeb, D Mahjoob, H Mahan, M Hanon IIUM Engineering Journal 23 (2), 193-204 , 2022 2022 Citations: 10
Microwave power absorption evaluation of river shell particles reinforced polyester composite IS Hameed, HM Mahan, AS Hameed Periodica Polytechnica Electrical Engineering and Computer Science 64 (2 … , 2020 2020 Citations: 10
Effect of heat treatments on the mechanical properties of welded joints of alloy steel by arc welding HM Mahan Diyala journal of engineering sciences 12 (2), 44-53 , 2019 2019 Citations: 9
Analyzing thermal insulation of concrete polymer by adding mineral wool HM Mahan, A Katawy, OA Shabeeb, AAAG Alrubaiy Advances in Science and Technology. Research Journal 19 (5) , 2025 2025 Citations: 8
Preparing eco-friendly composite from end-life tires and epoxy resin and examining its mechanical, and acoustic insulation properties NMAN Jamal I. Abdulhameed, Ahmed H. Ali, İsmail H. Kara, Hamid M. Mahan ... International Journal of Nanoelectronics and Materials (IJNeaM) 17 (1), 1-6 , 2024 2024 Citations: 7
Studying some mechanical properties of river shell particle polymer matrix composite HM Mahan, MM Farhan, TG Shaalan Journal of Southwest Jiaotong University 54 (4), 1-7 , 2019 2019 Citations: 7
ИССЛЕДОВАНИЕ СВОЙСТВ И СТРУКТУРЫ АЛЮМОМАТРИЧНЫХ КОМПОЗИТОВ, АРМИРОВАННЫХ ЧАСТИЦАМИ TiO2: EDN: HBKNTW МХМ Махан, СВ Коновалов, ИА Панченко, ДД Пашкова Ползуновский ВЕСТНИК 2 (4) , 2022 2022 Citations: 6
Effect of silica particles on the enhancement of mechanical properties and thermal conductivity of the epoxy composites HM Mahan, SA Abed, T Shaalan Journal of Advanced Research in Dynamical and Control Systems 10 (6), 1818-1821 , 2018 2018 Citations: 6
Effect of Cooling Media and Tempering Temperature on the Mechanical Properties of Reinforcement Steel HMMASJAA Hmud International Journal of Applied Engineering Research 13 (6), 3979-3987 , 2018 2018 Citations: 5
Influence of mixing fine powder of tungsten (W) and Nickel (Ni) Upon mechanical behavior of resin (Epoxy) SA Abed, AA Khalaf, M Farhan, HM Mahan Journal of Advanced Research in Dynamical and Control System 2, 2290-2295 , 2018 2018 Citations: 4
The effect of silicon-carbide additions on the mechanical and thermal conductivity properties of fiber-reinforced epoxy composites NA Rashid, HM Mahan, OA Shabeeb Materials and Technology 58 (6), 793–799-793–799 , 2024 2024 Citations: 3
