Article
Metallurgy & Metallurgical Engineering
Xue-Jun Cui, Chuang-Ming Ning, Guang-An Zhang, Lun-Lin Shang, Li-Ping Zhong, Ying-Jun Zhang
Summary: By modifying a MAO/DLC coating with PDMS, the hardness of the coating decreased, improving its lubrication and corrosion resistance properties. The PDMS modification also resulted in a denser, hydrophobic coating with higher bond strength and better resistance to friction.
JOURNAL OF MAGNESIUM AND ALLOYS
(2021)
Article
Materials Science, Multidisciplinary
Chang Liu, Quantong Jiang, Qiang Sun, Siwei Wu, Heng Tang, Dongzhu Lu, Nazhen Liu, Jizhou Duan, Baorong Hou
Summary: MgO@Nb2O5 composite coating was prepared on the surface of Mg-7Y alloy using micro-arc oxidation technique. The addition of Nb2O5 reduced the microspore diameter, porosity, and roughness of the coating. The corrosion resistance and hydrothermal performance of the coating were improved with the increasing concentration of Nb2O5.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Coatings & Films
Xiaopeng Lu, Jirui Ma, Marta Mohedano, Borja Pillado, Raul Arrabal, Kun Qian, Yan Li, Tao Zhang, Fuhui Wang
Summary: The study showed that sealing plasma electrolytic oxidation (PEO) coatings on AZ91 Mg alloy in calcium nitrate solutions at different pH values can enhance the corrosion resistance of the coatings. Adding SDS facilitates the formation of precipitates, resulting in hydrophobic coatings with poorer paint adhesion but better corrosion resistance.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Devadas Bhat Panemangalore, Rajashekhara Shabadi, Manoj Gupta
Summary: This study investigates the effect of calcium and erbium on magnesium-zinc alloy properties, finding that the addition of erbium reduces grain size and enhances mechanical and corrosion resistance. The quaternary alloy shows the highest strength and elongation due to twin structures. The addition of alloying elements also reduces degradation rates.
Article
Chemistry, Applied
Jinhe Dou, Jing Wang, Yupeng Lu, Chuanzhong Chen, Huijun Yu, Robin Lok-Wang Ma
Summary: The generation of MAO/CS composite coatings on Mg-1.75Zn-0.56Ca alloy surface significantly improves the corrosion resistance and biocompatibility of the alloy, with smooth and defect-free characteristics of the coatings.
PROGRESS IN ORGANIC COATINGS
(2021)
Article
Materials Science, Multidisciplinary
Han Yan, Yuming Qi, Xuejun Cui, Chunyang Li
Summary: In this study, an Na3PO4 monosalt solution was used to investigate the effects of voltage and Na3PO4 concentration on the spark discharge phenomenon, thickness, roughness, and corrosion resistance of MAO coatings. The results showed that MAO coatings were effectively synthesized at high concentrations and voltages. Furthermore, the addition of KOH to the Na3PO4 monosalt solution resulted in discernible spark discharge and improved the corrosion resistance of the coatings.
Article
Materials Science, Multidisciplinary
Chao Yang, Liyuan Sheng, Chaochao Zhao, Di Wu, Yufeng Zheng
Summary: The corrosion of magnesium alloys poses a limitation to their practical applications. By incorporating corrosion-resistant nanoparticles in microarc oxidation (MAO) coating, the corrosion resistance performance can be enhanced. However, excessive addition of these nanoparticles may lead to other issues. In this study, the structure of the MAO passivation layer was regulated using F- salts to generate a low dielectric constant MgF2 phase, reducing the high discharge voltage.
Article
Materials Science, Coatings & Films
Xiaochun Ma, Siyuan Jin, Ruizhi Wu, Qing Ji, Legan Hou, Boris Krit, Sergey Betsofen
Summary: Adding alloying elements in Mg-Li alloys can refine grains, modify microstructure, enhance corrosion resistance and wear resistance. The growth process of microarc oxidation coatings is influenced by alloying elements and microstructure.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Chemistry, Physical
Ziqian Liu, Ji Zhou, Lei Yang, Yonglai Lai, Yong Liu, Hualan Jin
Summary: The impact of heat treatment on the microstructure and properties of Mg-4Al-0.25Si-0.3Ca alloy was examined. The study found that after solution treatment at 420 degrees C for 10 h and 500 degrees C for 3 h, followed by aging at 220 degrees C for 7.5 h, the morphology of Mg2Si and CaMgSi phases changed from continuous to discontinuous. Additionally, Mg17Al12 phases precipitated continuously within grains and discontinuously at grain boundaries during aging. The tensile strength of the alloy increased from 174.3 +/- 4.0 MPa to 194.0 +/- 5.0 MPa, and the corrosion current density decreased by 54%. The corrosion resistance also improved, but the elongation decreased from 10.38 +/- 0.37% to 9.1 +/- 0.46%.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Kai Zhang, Cheng Wang, Shi Liu, Kai Guan, Mei-Xuan Li, Lin-Yang Zhang, Hui-Yuan Wang
Summary: The effects of aging precipitates on the corrosion behavior of Mg-1.0Al-0.3Ca alloy were investigated through experiments and first-principles calculations. Monolayer G.P. zones significantly reduced the corrosion rate and exhibited excellent corrosion resistance-strength synergy. The preferential corrosion of G.P. zones composed of Al and Ca atoms resulted in the accumulation of more Al-containing corrosion products on the alloy surface, weakening the cathode activity of the Mg alloy.
Article
Chemistry, Physical
Yang Zhao, Han Li, Chaojie Jing, Fangchao Zhao, Dingfei Zhang, Fusheng Pan
Summary: The effects of various Gd additions on the microstructure evolution, tensile properties, and corrosion resistance of Mg-6Zn-0.5Ca-1Mn (ZMX6105) alloys were examined. The addition of Gd promoted the formation of Ca2Mg6Zn3 phase during solidification and inhibited dynamic recrystallization, resulting in the refinement of dynamic recrystallized grains and strengthening of basal texture. Additionally, the ZMX6105-0.2Gd alloy exhibited excellent tensile properties and optimal corrosion resistance in a 3.5 wt% NaCl solution.
Article
Materials Science, Multidisciplinary
Yuzhou Du, Dongjie Liu, Yanfeng Ge
Summary: The addition of Ce retards dynamic recrystallization process and results in a bimodal microstructure, with a weakened texture in the DRXed region. The enhancement in strength of Mg-Zn-Ca alloy with Ce addition is attributed to the fine microstructure and strong texture, but it also deteriorates the corrosion resistance in NaCl solution due to the dispersed second phases and weakened basal texture in the DRXed region.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2021)
Article
Multidisciplinary Sciences
Gnanasambandam Anbuchezhiyan, Nabisab Mujawar Mubarak, Rama Rao Karri, Mohammad Khalid
Summary: This study synthesized Mg-Al-Zn alloy and Mg-Al-Zn/BN/B4C hybrid composite, and evaluated their properties. The results showed that the hybrid composite samples reinforced with 9 wt% B4C outperformed the control specimen in terms of strength and hardness, and reduced the corrosion area.
SCIENTIFIC REPORTS
(2022)
Article
Materials Science, Coatings & Films
Xiaochun Ma, Siyuan Jin, Ruizhi Wu, Shun Zhang, Legan Hou, Boris Krit, Sergey Betsofen, Bin Liu
Summary: Incorporating B4C and C particles into the microarc oxidation coatings on Mg-Li alloy improved the microstructure and properties of the coatings, leading to enhanced corrosion resistance and wear resistance.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Yue Ming, Guoqiang You, Fanjin Yao, Sheng Zeng, Jun Zhang, Jianhua Zhao, Wen Zeng
Summary: This study examines the oxidation resistance of Mg alloys with different amounts of Ca. It is found that alloying Mg with Ca significantly improves its resistance to oxidation at 515°C, with Mg alloyed with 1.0 wt% Ca demonstrating the best oxidation resistance. The proposed oxidation models for alpha-Mg and Mg2Ca, based on Gibbs free energy and density functional theory calculations, explain the differences in oxidation behavior between the two. Films formed on alpha-Mg are effective in improving oxidation resistance, while those formed on Mg2Ca are unstable and tend to peel off, leading to further oxidation.
Article
Chemistry, Physical
Seyed Yousef Mosavian, Reza Ebrahimi-Kahrizsangi, Mohammad Malakooti Khah, Zeinab Hamidi, Amin Rafiei, Mohsen Behzadi
Article
Electrochemistry
Nasrollah Eslamzadeh, Reza Ebrahimi-Kahrizsangi, Saeed Karbasi, Arman Zarebidaki, Farhad Gharavi
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2018)
Article
Electrochemistry
Hossein Olia, Reza Ebrahimi-Kahrizsangi, Fakhreddin Ashrafizadeh, Iman Ebrahimzadeh
Article
Materials Science, Multidisciplinary
Hossein Olia, Reza Ebrahimi-Kahrizsangi, Fakhreddin Ashrafizadeh, Iman Ebrahimzadeh
MATERIALS RESEARCH EXPRESS
(2019)
Article
Materials Science, Multidisciplinary
M. Bahrami-Karkevandi, B. Nasiri-Tabrizi, K. Y. Wong, R. Ebrahimi-Kahrizsangi, A. Fallahpour, S. Saber-Samandari, S. Baradaran, W. J. Basirun
MATERIALS CHEMISTRY AND PHYSICS
(2019)
Article
Materials Science, Multidisciplinary
Sina Sazesh, Aazam Ghassemi, Reza Ebrahimi, Mohammad Khodaei
MATERIALS RESEARCH EXPRESS
(2019)
Article
Materials Science, Multidisciplinary
Mehdi Boroujerdnia, Hamid Ghayour, Ahmad Monshi, Reza Ebrahimi-Kahrizsangi, Farid Jamali-Sheini
MATERIALS RESEARCH EXPRESS
(2019)
Article
Materials Science, Ceramics
Ali Baghaei, Amir A. Nourbakhsh, Reza Ebrahimi Kahrizsangi, Vania R. Salvini
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2020)
Review
Materials Science, Multidisciplinary
Abdullahi K. Gujba, Mamoun Medraj
ADVANCES IN MATERIALS SCIENCE AND ENGINEERING
(2020)
Article
Materials Science, Multidisciplinary
Eslam M. Fayed, Mohammad Saadati, Davood Shahriari, Vladimir Brailovski, Mohammad Jahazi, Mamoun Medraj
Summary: The study found that after a 4-hour homogenization treatment, the tensile properties of IN718 exceeded those of wrought IN718, and exhibited a high degree of microstructural isotropy.
Article
Materials Science, Multidisciplinary
Touraj Adhami, Reza Ebrahimi-Kahrizsangi, Hamid Reza Bakhsheshi-Rad, Somayeh Majidi, Milad Ghorbanzadeh, Filippo Berto
Summary: In this study, TiNb2O7 and Ti2Nb10O29 compounds were successfully synthesized as an anode material for lithium-ion batteries using mechanochemical method and post-annealing. The influence of annealing atmosphere on morphology, particle size, and electrochemical characteristics was investigated. Annealing in different atmospheres resulted in variable discharge capacities, with higher capacity observed for samples annealed in oxygen atmosphere compared to argon atmosphere.
Article
Nanoscience & Nanotechnology
Eslam M. Fayed, Vladimir Brailovski, Mohammad Jahazi, Mamoun Medraj
Summary: This study examines the thermal stability of additively manufactured Inconel 718 (IN718) under long-term thermal cycling exposure. The results show that the tensile and yield strengths of the samples initially increase at 650 degrees C before reaching their maximum values, and then gradually decrease with further thermal cycling. Analysis reveals that different heat treatment conditions have different effects on the material properties. Compared to the other condition, the 4H treatment effectively delays the deterioration of material strength.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Chemistry, Physical
Marzieh Rabiei, Motahareh Sadat Raziyan, Reza Ebrahimi-Kahrizsangi, Sohrab Nasiri, Arvydas Palevicius, Giedrius Janusas, Andrius Vilkauskas
Summary: Mg-based alloys have suitable properties for biomaterials, but they lack antibacterial properties and have low mechanical strength. In this study, a new combination of Ag/Zn/Mg was prepared to enhance bioactivity. The use of different polymers, including PolyCaproLactone, PolyHydroxyButyrate, and PolyVinylTriMethoxySilane, was also investigated. Experimental results showed that the best performance was achieved when PolyHydroxyButyrate was used.
Article
Chemistry, Analytical
Sohrab Nasiri, Marzieh Rabiei, Ieva Markuniene, Mozhgan Hosseinnezhad, Reza Ebrahimi-Kahrizsangi, Arvydas Palevicius, Andrius Vilkauskas, Giedrius Janusas
Summary: A novel nanocrystalline composite material for gas/temperature sensing is proposed in this study. It addresses the sensitivity issue of the material to high temperatures by designing and fabricating a freeze-drying machine to prevent structural damage. Various analyses and experiments were conducted to investigate the influence of different environments on the composite material. The results indicate that the composite material exhibits good selectivity to oxygen, vaporized ethanol, N-2, and CO environments.
Article
Metallurgy & Metallurgical Engineering
Eslam M. Fayed, Vladimir Brailovski, Mohammad Jahazi, Mamoun Medraj
Summary: This study investigates the potential of microwave hybrid heating (MHH) technique as an efficient post-heat treatment route for Inconel 718 (IN718) superalloy processed by laser powder bed fusion (LPBF). The LPBF-IN718 alloy is post-heat-treated using an industrial microwave (MW) oven and a conventional heat treatment. The MW treatment decreases the fraction of intergranular delta-phase and leads to more precipitation of MC-type carbides in the matrix compared to the conventional treatment.
CANADIAN METALLURGICAL QUARTERLY
(2023)
Article
Materials Science, Multidisciplinary
Ping Zhang, Xiujie Yue, Yeran Gao, Zhenyong Lin, Shunxiang Wang, Songting Zhang
Summary: This paper investigates the strengthening mechanism of highspeed cutting and solid particle-entrained waterjet peening (HSC-WJP) composite reinforcement on 7075-T6 aluminum alloy. The research results show that composite reinforcement can improve surface quality, reduce surface pits and roughness, and decrease the size of precipitation-free zone (PFZ) at grain boundaries.
Article
Materials Science, Multidisciplinary
Sangyoon Lee, Hwi Yoon, Sanghun Lee, Seung-min Chung, Hyungjun Kim
Summary: The wettability of metal oxides, particularly HfO2 thin films deposited via atomic layer deposition, and its correlation with surface free energy have been studied. It was found that surface oxygen species significantly affect the intrinsic hydrophilicity of HfO2 thin films, and the crystalline orientations also evolve with film thickness.
Article
Materials Science, Multidisciplinary
Changdong Yin, Yiwen Wu, Zhou Xu, Dongdong Ye, Jun Yao, Jianjun Chen, Qiang Liu, Xin Ge, Meiling Ding
Summary: This study proposed a new strategy to indirectly estimate the hydrogen diffusivity of metallic materials under tensile stress by combining the electrochemical hydrogen permeation test (EHPT), the hydrogen diffusion descriptive equation based on Fick's law, and hydrogen pre-charged tensile test. The results showed that the hydrogen permeation curve obtained was highly approximate to the theoretical trend. The hydrogen embrittlement (HE) susceptibility of the specimens increased with increasing stress.
Article
Materials Science, Multidisciplinary
Huan Luo, Wei-yi Wang, Xin Yu, Xian-jun Lei, Lang Liu, Guo-zheng Zha, Wen-long Jiang, Bin Yang, Bao-qiang Xu
Summary: Separating selenium and tellurium is a general challenge in material and non-ferrous metallurgical industries. This paper proposes a novel method that achieved efficient separation of selenium and tellurium using gas-liquid equilibrium phase diagram and valence regulation-vacuum gasification technique.
Article
Materials Science, Multidisciplinary
Fan Zhang, Rong Xin Wang, Aiqin Tian, Fangzhi Li, Jianping Liu, Hui Yang
Summary: Deposition of Pd/Pt/Au three-layer films on p-GaN under high and ultra-high vacuum conditions was studied to investigate the electrical contact properties. Linear I-V curves were observed in samples deposited under ultra-high vacuum conditions, while nonlinear I-V characteristics were obtained in samples deposited under high vacuum conditions. The study also found that the samples deposited under high vacuum conditions had higher amounts of oxygen and Pd oxide. The oxide layer had an additional influence on the electrical characteristics of the Pd/Pt/Au/p-GaN contact.
Article
Materials Science, Multidisciplinary
Hongli Liu, Chengzhe Liu, Ying Sui, Zhongxian Liu, Tiangang Zhang, Zhiqiang Zhang, Shuang Sun, Jianwei Jia
Summary: This study utilized polysiloxane and hafnium carbide to produce Si-N-C-O-Hf hybridized ceramic fibers, and obtained ceramic fibers with hemispherical particles on the surface through electrostatic spinning and pyrolysis. The ceramic fibers exhibited excellent thermal stability, oxidation resistance, and high temperature insulation.
Article
Materials Science, Multidisciplinary
M. Abaker, Nazar Elamin Ahmed, A. Saad, H. F. Khalil, E. M. M. Ibrahim, A. M. Adam
Summary: This paper systematically studied the internal structure and thermoelectric properties of In1-xGaxSb alloys prepared by melting synthesis at 1123 K. The results showed that doping with Ga in the In sites led to a significant increase in the Seebeck coefficient and power factor, while reducing the thermal conductivity. The maximum dimensionless figure of merit was observed at 403 K.
Article
Materials Science, Multidisciplinary
Fucheng Yu, Jinlong Ren, Jielin Zhang, Haiyang Chen, Xin Tian, Chenchen Feng, Cuixia Li, Jianbin Zhang, Xianxi Tang, Xiaogang Hou
Summary: An environmentally friendly ZnO@BiVO4 composite photocatalyst was prepared using in-situ self-assembly and solvothermal methods, demonstrating good photocatalytic performance. The mass ratio of BiVO4 and NCZ was found to influence the photocatalytic performance of the composite.
Article
Materials Science, Multidisciplinary
Yaoming Shao, Pingping Zheng, Tianhao Dong, Lianghuan Wei, Haifei Wu, Jianxiao Si
Summary: In this paper, Mg3Bi2 films were prepared on glass substrate using magnetron sputtering, and the phase composition and thermoelectric properties of the films were investigated with different atomic ratios. The films displayed a metastable cubic phase and high conductivity when the atomic ratio exceeded stoichiometry.
Article
Materials Science, Multidisciplinary
I. V. Uimanov, D. L. Shmelev, S. A. Barengolts
Summary: A two-dimensional axisymmetric model has been developed to study the prebreakdown processes in a cathode microprotrusion under an external electric field. The simulation results show that electrohydrodynamic instability leads to the formation of a nanometer-sized conical protrusion on the microprotrusion tip, significantly accelerating the heating process.
Article
Materials Science, Multidisciplinary
Weilun Zhang, Di Yang, Feng Gong, Yongjun Chen, Tian Chen, Zhiwen Xie, Sirui Yang
Summary: A novel Pt doping method was designed to improve the thermal stability of CrWN coating. The doping of Pt atoms effectively blocks the coherent growth of the grains and creates a significant mixing effect, resulting in a smooth surface with uniform element distribution.
Article
Materials Science, Multidisciplinary
Xiaoye Wang, Xiaoguang Yang, Wenna Du, Tao Yang
Summary: In this study, the effects of multiple growth parameters on self-catalyzed growth of InAs/GaSb axial heterostructured nanowires on Si substrate by MOCVD were investigated. It was found that the growth temperature and switching time have significant influences on the nanowire growth.
Article
Materials Science, Multidisciplinary
Weizhong Cui, Yan Zhao, Can Cui, Xing Liu, Beili Pang, Jianguang Feng, Hongzhou Dong, Liyan Yu, Lifeng Dong
Summary: This study introduces Co2+ cations into Cs2AgBiBr6 film to improve its quality, grain size, and conductivity, resulting in enhanced solar cell efficiency.
Article
Materials Science, Multidisciplinary
Jian Wang, Ke Yang, Xianming Cheng, Yalin Lu, Ganghui Wu, Yang Zhang, Yun Kan
Summary: The corrosion behavior and microstructural evolution of Sc microalloyed Al-3.2Cu-1.5Li alloys were investigated in detail. The microstructural results showed higher levels of dislocations density in the Sc microalloyed sample, which resulted in significantly refined grains and T1 precipitates. Microalloying with Sc changed the corrosion mode of the alloy and localized corrosion was found to occur preferentially at the subgrain within unrecrystallized grains with high grain stored energy.
Article
Materials Science, Multidisciplinary
Weifeng Liu, Na Liu, Kaiqiang Song, Meiqin Zeng, Zhongchen Lu
Summary: Monoclinic WO3 prepared through plasma milling exhibits higher photocatalytic activity due to its higher surface area, increased oxygen vacancies, and defects.
