Article
Materials Science, Multidisciplinary
Lianyang Chen, Tian Ye, Yongshuai Wang, Ding Zhou, Tao Suo, Qiong Deng, Feng Zhao, Qingyuan Wang
Summary: The study found that pre-twinning can effectively enhance the strength and ductility of magnesium alloy, while high twin density can improve its mechanical properties through twin-dislocation interaction. It was also concluded that high strain rate in cold dynamic extrusion is an effective method for preparing pre-twinning magnesium alloy with good mechanical properties.
MATERIALS CHARACTERIZATION
(2021)
Article
Nanoscience & Nanotechnology
Jingkai Feng, Dingfei Zhang, Hongjun Hu, Yang Zhao, Xia Chen, Bin Jiang, Fusheng Pan
Summary: During semi-solid extrusion, AZ31 magnesium alloy exhibits a higher nucleation rate for new fine grains and limited twinning activation, resulting in a homogeneous microstructure and improved mechanical properties.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Metallurgy & Metallurgical Engineering
Min-jie Liang, Jie Zheng, Huan Liu, Bao-xing Yao
Summary: This study investigates the microstructure, texture evolution, and mechanical properties of AZ31 magnesium alloy during the cyclic expansion extrusion with the asymmetrical extrusion cavity (CEE-AEC) process. The results show that after 3 passes, the microstructures are refined and the textures are deflected, leading to significant improvements in the mechanical properties of the alloy.
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
(2022)
Article
Materials Science, Multidisciplinary
Lintao Liu, Liping Wei, Jianfei Xiao, Shengwen Bai, Bin Jiang, Chao He, Guangsheng Huang, Dingfei Zhang, Fusheng Pan
Summary: Novel turned-bearing extrusions (TBE) are developed to improve the strengths of AZ31 alloy sheets by introducing additional shear strain during preparation. Numerical simulations show that high strain leads to grain refinement through dynamic recrystallization (DRX), but also increases temperature and consumes dislocations. The SC-TBE sheet exhibits finer grains and a higher residual dislocation density compared to the DC-TBE sheet or conventional extrusion (CE) sheet. Overall, these findings provide insights for developing stronger Mg alloy sheets.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Multidisciplinary
Yuzhao Xu, Jingyuan Li, Mingfan Qi, Wenhui Guo, Yue Deng
Summary: This study investigated the influence of extrusion temperature on the microstructure, mechanical properties, and corrosion behavior of ZGMS alloy. The results showed that lower extrusion temperature led to refined grain size and improved mechanical properties. The alloy exhibited excellent mechanical properties and low corrosion rate after extrusion at 360 degrees Celsius.
MATERIALS CHARACTERIZATION
(2022)
Article
Materials Science, Multidisciplinary
Alexandre Megret, Loic Prince, Marie-Georges Olivier, Veronique Vitry
Summary: The use of lightweight materials is required in automotive and aerospace fields. Magnesium and its alloys possess low density, high mechanical properties, and excellent thermal conductivity. However, they suffer from low corrosion and wear resistances. The combined action of corrosion and wear is critical for these materials.
Article
Materials Science, Multidisciplinary
Hassan Jafari, Amir Houshang Mojiri Tehrani, Mojiri Tehrani, Mahsa Heydari
Summary: The study found that extrusion temperature and ratio have significant effects on the microstructure, hardness, compression, and corrosion behavior of Mg-5Zn-1.5Y alloy. Lower temperature and higher ratio extrusion conditions provided higher compressive strengths, and the extrusion process decreased the corrosion rate of the alloy in simulated body fluid significantly. Extrusion temperature had a more pronounced effect on corrosion resistance compared to the extrusion ratio, with higher temperatures resulting in higher corrosion resistance.
INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
(2022)
Article
Metallurgy & Metallurgical Engineering
Yu-Jin Nie, Jian-Wei Dai, Xiao-Bo Zhang
Summary: The microstructures, mechanical properties, and corrosion behavior of as-extruded Mg-3Nd-0.2Zn-0.4Zr-xAg (x=0, 0.2, 0.5, 1 wt%) alloys were studied. The addition of Ag element promoted dynamic recrystallization and grain refinement, while accelerating corrosion in simulated body fluid.
ACTA METALLURGICA SINICA-ENGLISH LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Yuanxiao Dai, MengHan Xiao, Yaobo Hu, Yan Yang, Bin Jiang, Tianxu Zheng, Li Dong, Baoqing Yang, Changyong Zheng
Summary: By designing extrusion parameters, the Mg-0.12Ca-0.08Ba alloy underwent grain refinement and texture control, resulting in the best performance of the extruded samples with different crystallographic orientations.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Metallurgy & Metallurgical Engineering
B. Pillado, B. Mingo, R. del Olmo, E. Matykina, A. M. Kooijman, Y. Gonzalez-Garcia, R. Arrabal, M. Mohedano
Summary: Zinc aluminium (Zn-Al) and lithium aluminium (Li-Al) - layered double hydroxides (LDH) coatings with incorporated inhibitors (Li -, Mo- and W-based) were successfully synthesized on AZ31 Mg alloy. Zn -Al LDH W and Li -Al LDH Li showed the highest corrosion resistance and were selected for further evaluation.
JOURNAL OF MAGNESIUM AND ALLOYS
(2023)
Article
Chemistry, Physical
Luca Pezzato, Katya Brunelli, Stefano Diodati, Mirko Pigato, Massimiliano Bonesso, Manuele Dabala
Summary: By optimizing the composition of the electrolyte and process parameters, hydroxyapatite was successfully formed on the surface of AZ31 alloy for bioabsorbable implants. Compared to traditional PEO treatment, the coating produced on the PEO-BIO sample was thicker, more porous, and had zones enriched in Ca and P. The corrosion resistance of the PEO-BIO sample was comparable with traditional PEO treatment and higher than the untreated alloy.
Article
Materials Science, Multidisciplinary
Yi Xiong, Jin-jin Tang, Xiao-qin Zha, Shu-bo Wang, Wei Cao
Summary: This study investigates the influence of extrusion temperature on the microstructure, mechanical properties, and corrosion resistance of Mg alloy. The results show that Mg alloy extruded at 350 degrees Celsius exhibits superior performance.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2023)
Article
Engineering, Industrial
Dijia Zhao, Jian Qin, Shulin Lue, Jianyu Li, Wei Guo, Shusen Wu, Yaohua Zhang
Summary: Ultrafine-grained AZ31 alloy was successfully fabricated using a novel continuous squeeze casting-extrusion process. The extrusion ratio had a significant effect on the grain size and mechanical properties.
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
(2022)
Article
Chemistry, Physical
Cecilia Montero, Cristian Gino Ramirez, Lisa Munoz, Mamie Sancy, Manuel Azocar, Marcos Flores, Alfredo Artigas, Jose H. Zagal, Xiaorong Zhou, Alberto Monsalve, Maritza Paez
Summary: Climate change has driven the need to reduce carbon dioxide emissions, prompting the study of lighter alloys like magnesium for transport applications. However, magnesium alloys are prone to corrosion, leading to extensive research on surface treatments. This study investigates the impact of argon plasma pretreatment on the surface properties of an AZ31 magnesium alloy, specifically focusing on surface reactivity enhancement. The results show that the pretreatment increases surface energy, roughness, and oxygen species, thereby improving the protection capacity against corrosion.
Article
Materials Science, Multidisciplinary
Weili Cheng, Yanhui Liu, Yao Zhang, Shuaiju Meng, Srinivasan Arthanari, Hong-xia Wang, Lifei Wang
Summary: The novel dilute Mg-0.5Sn-0.7Al-0.8Zn alloy, directly extruded after casting, exhibited a fine bimodal grained microstructure, local nano-precipitates micro-region, and typical extrusion direction (ED)-tilted texture. It achieved a great balance between tensile properties and corrosion resistance, suggesting its potential for development as a biomaterial.
METALS AND MATERIALS INTERNATIONAL
(2021)