Article
Chemistry, Physical
Viacheslav Bazhenov, Anastasia Lyskovich, Anna Li, Vasily Bautin, Alexander Komissarov, Andrey Koltygin, Andrey Bazlov, Alexey Tokar, Denis Ten, Aigul Mukhametshina
Summary: This study focuses on the effects of heat treatment on the microstructure, mechanical properties, and corrosion resistance of biodegradable Mg-Zn-Ga alloys, showing that solid-solution heat treatment can enhance mechanical properties and reduce corrosion rate.
Article
Materials Science, Multidisciplinary
Mohammad Asadollahi, Reza Alizadeh, Sayed Khatiboleslam Sadrnezhaad
Summary: In this study, the effects of adding silver and copper antibacterial elements on the microstructure, mechanical properties, and degradation behavior of as-cast Mg-2Zn alloy were investigated. The results showed that both silver and copper had significant grain refinement effects and formed different precipitates in the alloy. The addition of silver and copper also improved the ultimate shear strength values, but increased the hydrogen evolution rate. Solution treatment effectively reduced the degradation rate.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Multidisciplinary
Ali Shafiei, Saeed Khani Moghanaki, Mostafa Amirjan
Summary: The microstructure and mechanical properties of Al14Co41Cr15Fe10Ni20 high entropy alloy were investigated in this study. The alloy exhibited a dual phase microstructure composed of dendritic solid solution FCC phase and an interdendritic B2 (BCC) phase, both in as-cast and homogenized states. Aging treatments at temperatures in the range of 750°C-1000°C resulted in the uniform distribution of precipitates throughout the alloy. The mechanical tests showed that the room temperature properties of the alloy were comparable to commercial Co-based alloys, but the high temperature ductility was poor. These findings contribute to the development of high entropy alloys with dual phase FCC/B2 microstructures.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Review
Metallurgy & Metallurgical Engineering
Meysam Mohammadi Zerankeshi, Reza Alizadeh, Ehsan Gerashi, Mohammad Asadollahi, Terence G. Langdon
Summary: Biodegradable magnesium (Mg) alloys show great promise as temporary structures in tissue engineering, with good biocompatibility and mechanical properties similar to human bone. Challenges include fast degradation and hydrogen gas bubble accumulation, which can be addressed through effective heat treatment modification without changing alloy composition or shape, leading to a desired combination of corrosion and mechanical properties.
JOURNAL OF MAGNESIUM AND ALLOYS
(2022)
Review
Metallurgy & Metallurgical Engineering
Meysam Mohammadi Zerankeshi, Reza Alizadeh, Ehsan Gerashi, Mohammad Asadollahi, Terence G. Langdon
Summary: Biodegradable magnesium alloys have potential applications in tissue engineering as temporary structures due to their biocompatibility and the ability to avoid secondary surgeries for removal. However, challenges such as fast degradation and hydrogen accumulation need to be addressed. Heat treatment is an effective method to modify the microstructure and improve corrosion behavior and mechanical properties without changing the composition or shape of the alloys.
JOURNAL OF MAGNESIUM AND ALLOYS
(2022)
Article
Chemistry, Physical
Pei Wang, Yafei Wang, Fei Cui, Xiaojun Yang, Aigang Pan, Weichao Wu
Summary: The effect of heat treatment on the microstructure, mechanical properties, and corrosion resistance of non-equiatomic CoCrFeNiW0.5 high entropy alloy was investigated. The results show that proper heat treatment can optimize the microstructure and achieve a good balance between mechanical properties and corrosion resistance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Ruirun Chen, Yangli Liu, Xiang Xue, Hongze Fang, Yingmei Tan, Hongzhi Cui
Summary: After directional heat treatment (DHT) at 1730 K, DS Ti44Al6Nb1Cr2V alloy exhibited straight columnar grain growth, significant changes in B2 phase morphology, and improved mechanical properties. The ultimate tensile strength and total strain increased by 21% and 33%, respectively, compared to the untreated alloy. The DHT process resulted in reduced residual B2 phases and improved fracture behavior with the generation of stacking faults in lamellar gamma phases.
MATERIALS CHARACTERIZATION
(2021)
Article
Nanoscience & Nanotechnology
Y. K. Xiao, Q. Yang, Z. Y. Bian, H. Chen, Y. Wu, Q. Lian, Z. Chen, H. W. Wang
Summary: Selective laser melting (SLM) of aluminium alloys is a research focus for fabricating complex components in aerospace and automotive industries. This study demonstrated the effects of post heat treatment on microstructures and mechanical properties, showing that SLMed TiB2/Al-7Si-Cu-Mg samples can achieve appropriate mechanical properties through post-heat treatments.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Chemistry, Physical
Qiang Wang, Xinling Wu, Xinwang Liu, Liangcai Zeng, Hongsheng Ding, Ruirun Chen, Jingjie Guo
Summary: Heat treatment is a useful method to alter the microstructure and mechanical properties of TiAl alloys. This study investigates the effects of a heat treatment on the Ti-45Al-2Nb-2Cr-(0.2, 0.5)C alloys. The results show that the heat treatment causes lattice shrinkage of the gamma phase and changes the microstructure from nearly lamellar to duplex structure. There is an increase in fracture strain but a decrease in yield/ultimate strength for the heat-treated samples compared to the as-cast samples.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
A. Faraji, M. Farvizi, T. Ebadzadeh, H. S. Kim
Summary: This study investigated the effect of heat treatment on the phase composition and properties of AlCoCrFeNi samples. The results showed that heat treatment at different temperatures had different impacts on the phase contents and properties of the samples. The samples heat-treated at 1000 degrees C exhibited higher FCC phase content and better compressive properties, while the samples without heat treatment had lower wear rate due to higher BCC phase content. The wear mechanisms of the samples included abrasive, adhesive, delamination, and oxidative mechanisms.
Article
Materials Science, Multidisciplinary
Gaolong Zhang, Xiaolong Niu, Ruopeng Lu
Summary: The effects of different heat treatment processes and the addition of Mn on the morphology and damping properties of LPSO phase in Mg-4.9Zn-8.9Y-xMn alloys were investigated. The results showed that heat treatment temperature had a significant influence on the morphology of LPSO phase. The addition of Mn could divide the bulk LPSO into smaller parts, resulting in dispersed LPSO phases. Overall, heat treatment and Mn addition can affect the mechanical and damping properties of the alloy, with heat treatment improving damping properties and Mn improving mechanical properties without significantly reducing damping.
MATERIALS RESEARCH EXPRESS
(2023)
Article
Materials Science, Multidisciplinary
Meijuan Liu, Ming Sun, Binghui Zhang, Zhengwen Xia, Minghao Guo
Summary: The study investigates the effects of an electrostatic field on the microstructure and mechanical properties of AZ91 alloy during aging treatment. It is found that the electrostatic field can modify precipitate distributions, refining continuous precipitates while suppressing discontinuous precipitates. The mechanism involves the enhancement of bulk diffusion by the electrostatic field, improving the competitiveness of continuous precipitates against discontinuous precipitates.
ADVANCED ENGINEERING MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Shudong Zhou, Peng Peng, Yuanli Xu, Xudong Zhang, Zhikun Ma, Jieren Yang, Jiatai Wang
Summary: This study investigates the dependence of mechanical properties on microstructure evolution in a new Ti-47.5Al-3Nb-3.5Cr (at.%) alloy through three different heat treatment processes. The results reveal that heat treatment can significantly improve the hardness and tensile strength of the samples. The temperature and time of the heat treatment have a significant impact on the distribution and interlamellar spacing of the microstructure.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Materials Science, Multidisciplinary
Zhihong Jia, Zhiqiang Xie, Kaiyun Xiang, Lipeng Ding, Yaoyao Weng, Qing Liu
Summary: The study systematically investigated the influence of extrusion and heat treatment processes on the microstructure and mechanical properties of spray formed 7055 alloy. It was found that the second phases present in the as-deposited alloy could be effectively eliminated by extrusion processing, leading to improvements in recrystallization resistance and mechanical properties. Additional high temperature two-stage homogenization treatment before extrusion was also shown to promote the precipitation of Al3Zr dispersoids, further enhancing the alloy's mechanical properties.
MATERIALS CHARACTERIZATION
(2022)
Article
Metallurgy & Metallurgical Engineering
Lei Liu, Xiaojie Zhou, Shilun Yu, Jian Zhang, Xianzheng Lu, Xin Shu, Zaijun Su
Summary: The effects of different treatments on the microstructure and mechanical properties of an extruded Mg-4.3Gd-3.2Y-1.2Zn-0.5Zr alloy were investigated. The study found that grain growth, texture changes, and stability of LPSO phases have an impact on the alloy's properties.
JOURNAL OF MAGNESIUM AND ALLOYS
(2022)
Article
Materials Science, Multidisciplinary
Chunguo Zhang, Xiaozhi Hu, Tim Sercombe, Qingbin Li, Zhimin Wu, Pengmin Lu
Article
Nanoscience & Nanotechnology
J. C. Wang, Y. J. Liu, P. Qin, S. X. Liang, T. B. Sercombe, L. C. Zhang
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2019)
Article
Engineering, Manufacturing
Y. J. Liu, D. C. Ren, S. J. Li, H. Wang, L. C. Zhang, T. B. Sercombe
ADDITIVE MANUFACTURING
(2020)
Article
Chemistry, Physical
Shengfeng Zhou, Yu Zhao, Xiaojian Wang, Wei Li, Dongchu Chen, T. B. Sercombe
JOURNAL OF ALLOYS AND COMPOUNDS
(2020)
Article
Materials Science, Multidisciplinary
Jincheng Wang, Yujing Liu, Chirag Dhirajlal Rabadia, Shun-Xing Liang, Timothy Barry Sercombe, Lai-Chang Zhang
Summary: This study investigates the microstructure and mechanical properties of a SLM-produced Ti-35Nb composite using elemental powder, revealing the benefits of solid-solution treatment in enhancing chemical homogeneity and bonding strength. Analyses of tensile fractures and shear bands confirm the correlation between different phases and the ductility of Ti-35Nb.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2021)
Article
Veterinary Sciences
Guy Bird, Mark Glyde, Giselle Hosgood, Alex Hayes, Robert Day
Summary: The study compared the biomechanical properties of a 2.0mm locking compression notched head T-plate (NHTP) and 2.0mm straight locking compression plate (LCP) in a simple transverse juxta-articular fracture model. Results showed that the LCP was stiffer than the NHTP and had lower plate strain. In this experimental model, a 2.0mm LCP with two screws in the short fragment was significantly stiffer than a 2.0mm NHTP with three screws in the short fragment. Extending the working length significantly reduced construct stiffness and increased plate strain.
VETERINARY AND COMPARATIVE ORTHOPAEDICS AND TRAUMATOLOGY
(2021)
Article
Materials Science, Ceramics
Neda Ghaebi Panah, Rob Atkin, Timothy B. Sercombe
Summary: Mesoporous glass 58S has excellent bioactivity and strength. However, sintering can lead to crystallization, reducing bioactivity. The occurrence of segregation can affect the material properties of post-sintered glasses.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
J. C. Wang, Y. J. Liu, S. X. Liang, Y. S. Zhang, L. Q. Wang, T. B. Sercombe, L. C. Zhang
Summary: This study investigates the microstructure and mechanical behavior of Ti-35Nb alloy components manufactured using different types of powder feedstock, highlighting the importance of powder feedstock on the melt pool stability and resultant part's microstructure and mechanical properties.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Sami E. Alkhatib, Timothy B. Sercombe
Summary: Understanding the high strain-rate response of materials is crucial in various applications, and the advancements in additive manufacturing have made it possible to produce lightweight structures using light metal alloys. However, research on the dynamic response of additive manufacturing materials is limited.
MATERIALS & DESIGN
(2022)
Article
Materials Science, Ceramics
Rob Atkin, Timothy B. Sercombe, Neda Ghaebi Panah
Summary: Bioactive glass scaffolds are commonly used in bone tissue engineering applications, and sintering is often employed to enhance their mechanical strength. However, sintering can lead to crystallization, resulting in reduced bioactivity and biodegradability. This study compared the in-vitro bioactivity and biodegradability of sintered 58S bioactive glass made from fully amorphous powder and partially crystalline powder with the same chemical compositions. The results showed that the sintered 58S produced from glass ceramic powder exhibited higher in-vitro bioactivity and biodegradability rate than that from fully amorphous powder. The initial structure after calcination was found to be crucial in determining the subsequent crystallization during sintering, and the presence of crystallinity and hydroxyapatite formation after calcination played important roles in increasing the bioactivity and biodegradability rate of the sintered 58S.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Engineering, Civil
Sami E. Alkhatib, Ali Karrech, Timothy B. Sercombe
Summary: Lightweight lattice structures have gained much attention in various fields due to their high specific mechanical properties. This study investigates the energy absorption of a 3D printed titanium-based isotropic lattice structure. The results show that the topology optimized lattice exhibits excellent energy absorption isotropy and comparable performance to other lattice structures.
THIN-WALLED STRUCTURES
(2023)
Article
Materials Science, Multidisciplinary
Vivien J. Challis, Xiaoxue Xu, Angela Halfpenny, Andrew D. Cramer, Martin Saunders, Anthony P. Roberts, T. B. Sercombe
Summary: Due to their low Young's Modulus, high strength and suitability for additive manufacturing, non-toxic beta-type titanium alloys are emerging as next-generation biomaterials. We present novel experimental results that demonstrate significant variation of Young's Modulus with direction for selective laser melted (SLM) biocompatible Ti-24Nb-4Zr-8Sn (Ti2448). Computational models accurately predict the anisotropic Young's Modulus of polycrystalline materials and show how to tailor the modulus of SLM components by choosing the build orientation in the context of biocompatible Ti2448.
Article
Materials Science, Multidisciplinary
Sami E. Alkhatib, Shanqing Xu, Guoxing Lu, Ali Karrech, Timothy B. Sercombe
Summary: Laser powder bed fused (LPBFed) metal alloys, such as titanium, aluminium, and steel, have high specific strength and great potential in the automotive and aerospace sectors. This study investigated the dynamic behavior of LPBFed CPTi, AlSi10Mg, and 316L stainless steel under strain rates of approximately 500-3000 s-1. The results showed that LPBFed CPTi exhibited higher flow stress than conventionally built counterparts due to the fine grain size resulting from the additive manufacturing method.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Engineering, Electrical & Electronic
Ben T. McAllister, Jeremy Bourhill, Wing Him Jacob Ma, Tim Sercombe, Maxim Goryachev, Michael E. Tobar
Summary: This study presents an experimental characterization of the electrical properties of 3-D-printed niobium, demonstrating its superconducting transition and surface resistance. The research also introduces a simple method for characterizing material properties of a sample of superconductor, which could be easily applied to other materials. Further research in additive manufacturing may lead to the future application of 3-D-printed niobium in superconducting cavity designs and other innovative technologies.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2021)
Article
Materials Science, Multidisciplinary
Y. Ma, G. Ji, X. P. Li, C. Y. Chen, Z. Q. Tan, A. Addad, Z. Q. Li, T. B. Sercombe, J. P. Kruth