Article
Crystallography
Jun Luo, Lijun Dong, Guowei Zhong, Zhenxing Duan, Shuang Chen, Anru Wu
Summary: The microstructures and mechanical properties of Mg-3Sn-0.1Ca-xMM (mischmetal, x = 0.3, 0.6, and 0.9 wt.%) alloys were investigated. The addition of MM led to the formation of a second phase, resulting in increased tensile yield strength but decreased elongation. The annealed Mg-3Sn-0.1Ca-0.6MM alloy exhibited the highest tensile strengths, mainly attributed to grain refinement, Orowan strengthening, and texture strengthening.
Article
Nanoscience & Nanotechnology
Wenjun Gao, Xianglei Dong, Yuheng Fan, Hongliang Zhao, Chunwen Guo, Kangrong Weng, Yang Xiao
Summary: The study found that the addition of Ca resulted in the formation of micro-sized Mg2Ca and a reduction in volume fraction of the alpha phase, affecting the microstructure and texture, leading to improved mechanical performance of Mg-9Li-0.3Ca compared to Mg-9Li during tension.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Materials Science, Multidisciplinary
Jianwei Dai, Qiangsheng Dong, Yujin Nie, Yongqiang Jia, Chenglin Chu, Xiaobo Zhang
Summary: The microstructures, mechanical properties, and corrosion behaviors of Mg-4Gd-xY-1Zn-0.5Ca-1Zr (x = 1, 3, and 5 wt.%) alloys under as-cast condition were investigated. It was found that Y addition significantly improved the yield strength and corrosion resistance of the alloys.
MATERIALS & DESIGN
(2022)
Article
Nanoscience & Nanotechnology
Elaheh Maleki, Saman Mostafapoor, Farzad Shahri, Massoud Emamy
Summary: This study attempts to investigate the synergetic effects of changes in alloying elements and the hot extrusion process on the microstructure, texture, and mechanical properties of Mg-ZnxZr-yCa alloys. The research reveals that the texture of the alloy becomes more equiaxed after hot extrusion, and the tensile strength decreases compared to Ca/Zr=1. Atom probe tomography technique confirms that solute elements segregate into grain boundaries, facilitating the phenomenon of texture weakening in extruded alloys.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Metallurgy & Metallurgical Engineering
E. P. Silva, R. H. Buzolin, F. Marques, F. Soldera, U. Alfaro, H. C. Pinto
Summary: Mg-Zn-Zr (ZK) alloys have high mechanical strength, but are susceptible to hot cracking due to the formation of low melting point precipitates. Adding rare earths can improve the alloy's performance. Ce-base mischmetal addition can enhance hot rolling behavior, refine grain size, and improve mechanical properties of ZK60 alloy.
JOURNAL OF MAGNESIUM AND ALLOYS
(2021)
Article
Chemistry, Physical
Hong Xu, Zhi-Peng Guo, Ping-Yu Zhang, You Zhou, Pin-Kui Ma
Summary: The study revealed that the refinement of microstructure in Mg-6Al-1Zn-0.9Sn alloy processed by ECAP is highly dependent on the processing temperature, mainly due to the precipitation of secondary-phase particles. The formation of a 45 degrees texture during the ECAP process significantly influences grain boundary strengthening and yield strength.
Article
Materials Science, Multidisciplinary
Zhe Liu, Zhiyu Fan, Li Liu, Shu Miao, Zhicheng Lin, Chungui Wang, Yunqiang Zhao, Renlong Xin, Chunlin Dong
Summary: In this study, 1 mm-thick AZ31 magnesium alloy sheets were joined by refill friction stir spot welding. The metallurgical features, microstructure, texture, and mechanical response of the spot-welded joints were investigated, and the effect of welding parameters on joint performance was evaluated. The results showed that the highest lap shear strength was achieved with a rotational speed of 1500 rpm and a plunge depth of 1.4 mm. A fine-grain structure was observed in the stir zone, and the grain size decreased with lower rotational speed and plunge depth. Furthermore, strain localization was observed during tensile deformation in the spot weld, and the mechanism behind this phenomenon was discussed.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Multidisciplinary
Guangli Bi, Hongsheng Man, Jing Jiang, Yuandong Li, Tijun Chen, Xiaoru Zhang, Daqing Fang, Xiangdong Ding
Summary: The effects of Zn addition on the microstructure and mechanical properties of Mg-Y-Co-W alloy were investigated. The replacement of Co with Zn improved the strength and ductility of the alloy, resulting in refined grains and precipitation strengthening from different phases.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
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
Nanoscience & Nanotechnology
Shunlong Tang, Meng Zhou, Yi Zhang, Deye Xu, Zhiyang Zhang, Xianhua Zheng, De Li, Xu Li, Baohong Tian, Yanlin Jia, Yong Liu, Alex A. Volinsky, Ekaterina S. Marchenko
Summary: New Cu-Ni-Sn-Ti-Cr and Cu-Ni-Sn-Ti-Cr-Ce alloys were prepared and studied. The Cu-Ni-Sn-Ti-Cr alloy showed a micro-hardness of 221 HV, a tensile strength of 598.1 MPa, elongation of 9.9%, and electrical conductivity of 45.2% IACS after solution treatment, 60% cold rolling, and aging. Similarly, the Cu-Ni-Sn-Ti-Cr-Ce alloy achieved a micro-hardness of 245 HV, a tensile strength of 645.2 MPa, elongation of 9.4%, and electrical conductivity of 44.6% IACS after the same treatment process. The comprehensive properties of these alloys are attributed to the composite effects of solution, deformation, grain boundary, and precipitation strengthening, with precipitation strengthening playing a major role.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Metallurgy & Metallurgical Engineering
Penbe Kurt, S. Can Kurnaz
Summary: In this study, Mg-4Sn-2Al alloy was produced by gravity casting and the effect of alloying elements (2% La and 0.15% Ti) on its microstructure, mechanical properties, and corrosion rate was investigated. The results showed that the addition of La and Ti improved the mechanical properties and reduced the corrosion rate of the alloy.
INTERNATIONAL JOURNAL OF METALCASTING
(2023)
Article
Chemistry, Physical
X. H. Li, H. Yan, R. S. Chen
Summary: The Y2O3p/ZG21 composites underwent significant changes in microstructure and mechanical properties after rolling and annealing processes. Deformed microstructure with twins and shear bands, as well as a basal texture with double peaks, were observed after rolling; while a recrystallized microstructure and circle multi-peaks texture were obtained after annealing. The anisotropic yield strength and superior ductility of the composites were attributed to the asynchronous change of texture components during annealing and different deformation mechanisms.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Zhong-Zheng Jin, Xiao Ma, Min Zha, Kai Guan, Hui-Yuan Wang, Jian-Gang Ma, Yi-Chun Liu
Summary: A near-isotropic Mg-4.5Al-1.5Sn-0.5Ca-0.2Mn alloy with a low mechanical anisotropy and balanced combination of yield strength and ductility was developed, showing potential for various engineering applications.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
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
J. Wang, T. Li, H. X. Li, Y. Z. Ma, K. N. Zhao, C. L. Yang, J. S. Zhang
Summary: Magnesium alloys have attracted more attention recently as a novel functional material for the fabrication of fracturing tools due to their relatively high mechanical properties and fast dissolubility ability. The addition of nickel influences phase precipitation behaviors and mechanical properties of the alloys. The invention of these alloys provides more material alternatives for the fabrication of dissoluble fracturing tools.
JOURNAL OF MAGNESIUM AND ALLOYS
(2021)
Article
Metallurgy & Metallurgical Engineering
Wenhui Yao, Yonghua Chen, Yanning Chen, Liang Wu, Bin Jiang, Fusheng Pan
Summary: This study utilizes the slippery liquid-infused porous surface (SLIPS) technique to form a protective coating on AZ31 magnesium alloys. The results show that 120°C is the optimal condition for SLIPS to provide corrosion protection.
ACTA METALLURGICA SINICA-ENGLISH LETTERS
(2023)
Article
Metallurgy & Metallurgical Engineering
Jinge Liao, Jiangfeng Song, Gong Chen, Hua Zhao, Shengkun Tong, Jun Zhou, Bin Jiang, Junyao Xu, Fusheng Pan
Summary: Mg-10Gd-3Y-0.5Zr alloy castings show great potential for aerospace applications due to their excellent tensile and creep properties. The hot tearing behavior of these alloys, which is an important characteristic for engineering applications, is investigated in this study through the addition of minor amounts of Ag and Ce. The results show that the addition of Ag and Ce worsens the hot tearing resistance of the alloy, with Ag increasing the susceptible freezing range and coefficient of thermal expansion, and Ce increasing grain size and coefficient of thermal expansion.
INTERNATIONAL JOURNAL OF METALCASTING
(2023)
Article
Nanoscience & Nanotechnology
Wenlong Xu, Chang Su, Xianhua Chen, Jun Tan, Li Feng, Chen Wen, Jingying Bai, Fusheng Pan
Summary: There is a high demand for heat-resistant Mg alloys in aerospace and automotive applications. This paper focuses on adding different Nd contents to the Mg-12Gd-3Y alloy to enhance its elevated-temperature strength. The Mg-12Gd-3Y-1.0Nd alloy, after extrusion and aging treatment, exhibits excellent strength and toughness at room temperature, 200 degrees C, and 250 degrees C. The improved properties can be attributed to the fine grain size, grain boundary segregation, and dispersed second phases in the alloy.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Nanoscience & Nanotechnology
Xiaoying Qian, Yuyang Gao, Zhihua Dong, Bin Jiang, Chao He, Cuihong Wang, Ang Zhang, Baoqing Yang, Changyong Zheng, Fusheng Pan
Summary: The micro addition of Ca effectively increases the strength and ductility of Mg-Zn-Ce alloy by enhancing alloying segregation at grain boundary. The addition of Ca leads to enhanced Zn segregation and co-segregation of Zn, Ce, and Ca. This is attributed to the decreased segregation energy and promoted diffusion process of Zn by Ca, which accelerates the thermodynamic and kinetic process of segregation. The controllable segregation at grain boundary, induced by Ca, contributes to the development of advanced magnesium alloys by stabilizing grain boundary, refining grain size, inhibiting dislocation mobility, improving strength, and enhancing grain boundary cohesion and ductility.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Nanoscience & Nanotechnology
Lintao Liu, Shengwen Bai, Bin Jiang, Chao He, Qinghang Wang, Jianxin Zhou, Liping Wei, Xiaoying Qian, Zhihua Dong, Guangsheng Huang, Dingfei Zhang, Fusheng Pan
Summary: In this study, a novel alloy designing concept is proposed to prepare a Mg alloy with excellent strength-ductility synergy by refining grain size and depressing intergranular deformation simultaneously. Through extrusion at 220 degrees C, an ultrafine microstructure is achieved in the basic alloy, Mg-1Sb-1Mn (SM11). The co-addition of Sn and Zn is then conducted to inhibit intergranular deformation and improve the mechanical properties of the alloy. The results show that the strength of the extruded Mg-1Sb-1Mn-1Sn-0.2Zn (SMTZ1110) alloy is significantly improved while maintaining a high ductility, suggesting a promising approach for the development of Mg alloys with a balanced strength-ductility combination.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Materials Science, Multidisciplinary
Jiarong Gao, Xinyu Sun, Yunxuan Zhou, Quan Dong, Jun Tan, Xianhua Chen, Bin Jiang, Fusheng Pan
Summary: This study focuses on a newly developed low-cost Mg-8Al-4Ce-0.2Zn-0.2Mn alloy named AE84, which has higher aluminum content. The addition of aluminum increases the fraction of aluminum-containing second phases and strengthens the alloy through heat treatment. AE84 alloys demonstrate outstanding tensile performance at both room temperature and elevated temperatures. This study provides a new idea for the composition design of heat-resistant alloys.
Article
Metallurgy & Metallurgical Engineering
Chunquan Liu, Xianhua Chen, Yulong Wu, Yaobo Hu, Wei Zhang, Yusheng Zhang, Jingying Bai, Fusheng Pan
Summary: A gradient ultrafine-grained (UFG) Mg-2Gd-0.4Zr alloy sheet with a UFG layer of about 118 nm on the surface was fabricated using sliding friction treatment (SFT). The SFT-processed UFG surface layer exhibited significantly improved corrosion resistance compared to the original coarse-grained (CG) structure, showing higher impedance and lower corrosion rate.
ACTA METALLURGICA SINICA-ENGLISH LETTERS
(2023)
Article
Chemistry, Analytical
Liang Fu, Guangsheng Huang, Yaobo Hu, Xianhua Chen, Jingfeng Wang, Fusheng Pan
Summary: A new strategy using N2O as a reaction gas for the simultaneous determination of nonmetallic impurity elements in high-purity magnesium alloys by ICP-MS/MS was proposed. Through O-atom and N-atom transfer reactions, spectral interferences were eliminated and higher sensitivity and lower LODs were achieved compared to other reaction modes. The accuracy of the method was evaluated and it showed consistent results with SF-ICP-MS. This study provides a systematic method for precise quantification of impurity elements and can be applied to other fields.
ANALYTICAL CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Longke Bao, Shengli Han, Shengkun Xi, Yuhui Zhang, Cuiping Wang, Kaihong Zheng, Rongpei Shi, Xingjun Liu, Fusheng Pan
Summary: The interfaces between in-situ Al3Ti particles and the Mg matrix in the Ti-reinforced AZ31 alloy play a crucial role. Through advanced characterization tools and first-principles calculations, the fabricated and investigated interfaces between Al3Ti particles and the Mg matrix are studied. The orientation relationship and atomic interface structure are characterized, and the interface properties are investigated using first-principles calculations. The findings provide insights into the deformation mechanisms and mechanical properties of Ti-reinforced Mg alloys.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Chunquan Liu, Xianhua Chen, Domonkos Tolnai, Yaobo Hu, Wei Zhang, Yusheng Zhang, Fusheng Pan
Summary: A remarkable annealing hardening effect was observed in gradient ultrafine-grained Mg-0.32Gd-0.11Zr (at.%) alloy sheet fabricated by sliding friction treatment. The annealed ultrafine-grained structure showed a higher hardening response than the annealed coarse-grained structure. The segregation of solute Gd atoms along grain boundaries and around defects contributed to the significant segregation hardening effect.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Materials Science, Ceramics
H. Zhou, Z. Ding, Y. A. Chen, Z. Q. Lan, S. F. Guo, F. Spieckermann, V. Zadorozhnyy, J. Tan, F. S. Pan, J. Eckert
Summary: The hydrogen storage properties of amorphous and crystalline Mg85Ni5Y10 alloys were compared, and the melt-spun alloy showed higher storage capacity and faster kinetics than the induction-melted alloy. The reversible storage capacity of the melt-spun alloy was 4.2 wt% H2, while the induction-melted sample had 3.8 wt% at 200 degrees C. Furthermore, the melt-spun alloy could release 4.1 wt% H2 within 30 min at temperatures above 275 degrees C, close to its theoretical hydrogen storage capacity of 4.2 wt%.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2023)
Article
Chemistry, Physical
Jin Wang, Zhixiao Liu, Baihua Qu, Zhipeng Li, Yiming Zhang, Chunliu Xu, Zhao Chen, Qingshui Xie, Ming-Sheng Wang, Miao Lu, Junmei Zhao, Jingfeng Wang, Dong-Liang Peng, Fusheng Pan, Yong-Sheng Hu
Summary: By constructing an ionic-electronic dual-conducting interlayer with abundant N-sites on the Na metal anode, the stability of the electrode/electrolyte interaction is improved, resulting in prolonged cycling lifespan and enhanced electrochemical performance of Na-based batteries.
ENERGY STORAGE MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Xu Dai, Liang Wu, Wenjun Ci, Wenhui Yao, Yuan Yuan, Zhihui Xie, Bin Jiang, Jingfeng Wang, Atrens Andrej, Fusheng Pan
Summary: A novel MgAlY-Layered double hydroxides (LDHs) film loaded with salicylate is successfully prepared on flash-MAO coated AZ31 alloys, which greatly improves the corrosion performance by sealing the porous morphology. Self-healing measurements and characterizations demonstrate that the active corrosion protection originates from the corrosion inhibition and dual self-healing effects.
Article
Nanoscience & Nanotechnology
Xiaojun Luo, Hong Yang, Jianxin Zhou, Bin Jiang, Qingguo Feng, Ying Zeng, Wei Li, Zhihua Dong, Jiangfeng Song, Junyao Xu, Guangsheng Huang, Dingfei Zhang, Fusheng Pan
Summary: A novel Mg-8Gd-2Y-1.5Zn-1Mn (GYZ-1Mn) alloy with exceptional high-temperature mechanical properties was developed by introducing RE/Zn segregation on α-Mn nanoparticles. The outstanding performance of GYZ1Mn alloy was attributed to the segregation of RE/Zn atoms on the α-Mn nanoparticles, which promoted the formation of fine lamellar long period stacking ordered (LPSO) phase and hindered the coarsening of α-Mn. As a result, delayed dynamic recrystallization occurred in GYZ-1Mn, resulting in fine grain size, high density of geometrically necessary dislocations, and strong fiber texture intensity, thereby strengthening the high-temperature mechanical properties. Therefore, this work paved a new path for the development of heat-resistant Mg alloys by introducing elemental segregation on nanoparticles.
SCRIPTA MATERIALIA
(2023)
Article
Nanoscience & Nanotechnology
Lunchao Zhang, Yuan Yuan, Jun Wang, Tao Chen, Jingfeng Wang, Fusheng Pan
Summary: High temperature heat treatment Mg-0.69Sn-0.69Y alloy exhibited a high damping capacity (0.201 at epsilon=1 x 10-3) and a very low critical strain amplitude at room temperature (epsilon cr1=2.97 x 10-5), which can be ascribed to the combined effects of purified matrix phase and subgrain interfaces. The substructure is unstable and the damping capacity decreases with temperature increment.
SCRIPTA MATERIALIA
(2023)
