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Trans. Nonferrous Met. Soc. China 22(2012) 1556-1562 Hot deformation behavior and microstructural evolution of Al-Zn-Mg-0.25Sc-Zr alloy during compression at elevated temperatures ZHANG Zhi-ye1, PAN... alloy and its microstructural evolution were investigated by isothermal axisymmetric hot compression tests at temperatures from 340 to 500 ℃ and strain rates ranging from 0.001 to 10 s-1. The steady......
Crystallization and Morphological Evolution of Yttrium Carbonate李永绣,黄婷,黎敏,周雪珍,罗军明,何小彬摘 要:The crystallization and morphological evolution of yttrium... and 3-D regulate grain particles. However, X-ray patterns of all the crystalline yttrium carbonates are identified with the structure of tengerite Y2(CO3)3·2H2O. These facts demonstrate......
evolution can be divided into four steps: the initial rapid coarsening, structure separation, spheroidization and final coarsening. Correspondingly, these four steps result from the phase transformations of β... remelting and their relations with the microstructural evolution can be schematically presented by Fig.8. This indicates that the initial coarsening is due to the reaction of β→α, the structure separation......
In-situ formed NiS/Ni coupled interface for efficient oxygen evolution and hydrogen evolutionChaoyi Yan1,Jianwen Huang1,Chunyang Wu1,Yaoyao Li1,Yuchuan Tan2,Luying Zhang1,Yinghui Sun3,Xiaona... for water splitting.Small overpotentials of 301 and 161 mV are needed to drive the current density of 10 mA cm-2 accompanying with remarkably low Tafel slopes of 46 and 74 mV dec-1 for oxygen evolution......
金属学报, 2003, 13 (5): 1151-1156. YANG Hong-liang, ZHANG Zhi-liang, Ohnaka I, et al. Effect of re-melting heat treatment on semi-solid structure evolution of hypoeutectic Al-Si alloy[J]. The Chinese... Process, Northwestern Polytechnical University, Xi'an 710072, China) Abstract: The microstructure evolution of a dendritic Al-5.8%Cu alloy during controlled heating and re-melting process......
activity and catalytic stability are much higher than the other iron-group with Mo alloy electrodes. Key words: Ni-Fe-Mo-Co alloy; catalytic activity; surface structure; hydrogen evolution reaction... structure and catalytic activities in electrodeposited Mo-Ni alloys [J]. Materials Transactions, 2002, 43(7): 1525-1529. [9] HAN Qing, CHEN Jian-she, LIU Kui-ren, LI Xin, WEI Xu-jun. Hydrogen evolution......
Phase evolution and room temperature ferroelectric and magnetic properties of Fe-doped BaTiO3 ceramics QIU Shen-yu(邱深玉)1, LI Wang(李 旺)2, LIU Yu(刘 宇)2, LIU Gui-hua(刘桂华)2, WU Yi-qiang(吴毅强)3... were found to be dependent on the doping level as well as the fraction of the hexagonal phase in the ceramics. Key words: Fe-doped BaTiO3 ceramics; phase evolution; ferroelectricity; magnetism 1......
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Microstructure evolution and mechanical properties of1 000 MPa cold rolled dual-phase steel ZHAO Zheng-zhi(赵征志), JIN Guang-can(金光灿), NIU Feng(牛 枫), TANG Di(唐 荻), ZHAO Ai-min(赵爱民) Engineering...; Abstract: The microstructure evolution of 1 000 MPa cold rolled dual-phase (DP......
Microstructure evolution of nanostructured Ni3Al during annealing REN Jiang-wei(任江伟)1, SHAN Ai-dang(单爱党)1, LIU Jun-liang(刘俊亮)2, ZHANG Jun-bao(张俊宝)2, SONG Hong-wei(宋洪伟)2 1. Key Laboratory... mechanical attrition treatment. The surface nanocrystallites were annealed at 250-750 ℃ for 30 min. Microstructure evolution of nanocrystallites during annealing was studied by X-ray diffraction (XRD......