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the observed microstructure change. Key words: hydrogen evolution reaction; overpotential; Ni-Mo alloy electrode 1 Introduction Many transition metal alloys with binary and ternary compositions have been studied as hydrogen evolution reaction electrodes in water electrolysis[1-6]. The activity of such metal alloys for the hydrogen evolution reaction depends on at least two factors, i.e.......
Trans. Nonferrous Met. Soc. China 25(2015) 1200-1205 Evolution of porous structure with dealloying corrosion on Gasar Cu-Mn alloy Xing-ming ZHANG1, Yan-xiang LI1,2, Hua-wei ZHANG1,2, Yuan LIU1,2 1..., Beijing 100084, China Received 17 April 2014; accepted 13 July 2014 Abstract: The evolution of nanoporous structure with dealloying condition was investigated, thus, the mechanism of porous structure......
Corrosion damage evolution and residual strength of corroded aluminum alloysYouhong Zhang1), Guozhi Lv2), Hui Wang2), Bomei Si2), and Yueliang Cheng3) 1) The Second Artillery Engineering College, Xi... of surface corrosion damage. On the basis of the measured data sets of the corrosion damage ratio, the probabilistic model of corrosion damage evolution was built. The corrosion damage decreased the fatigue......
MPa and 192 MPa at 980 ℃ 3.2 Structure evolution Fig.2 shows the microstructure of the tested superalloy with standard heat treatment. The microstructure consists of γ matrix, spherical γ... Creep behavior and microstructure evolution of directionally solidified superalloy IC10 at high temperature ZHAO Xi-hong(赵希宏)1,2, SUN Yue-jun(孙跃军)1, HUANG Zhao-hui(黄朝辉)2, GONG Sheng-kai(宫声凯)1, XU......
the combined method of investigation in-situ and artificial environmental test indoor, the damage mechanism and evolution law of mechanical property of tunnel lining structure suffering sulfate ambient were...3种,对应的损伤机制分别为结晶侵蚀性物理损伤,溶蚀性化学损伤以及综合型损伤3类.随着侵蚀时间的延长,隧道衬砌混凝土表面结晶面积,剥落程度,裂缝宽度均表现为发散型二次曲线特征;衬砌结构变形,内力均随之增大,结构刚度整体下降,承载能力呈抛物线形式衰减.关键词:隧道结构;硫酸盐侵蚀;损伤机制;演化规律Damage mechanism and evolution law of mechanical......
with the inner structure evolution of rock in full stress-strain process. As typical rock for dam foundation, underground cavern group and high rock slopes of the major hydropower project, volcanic...J. Cent. South Univ. (2012) 19: 252-261 DOI: 10.1007/s11771-012-0999-0 Creep properties and permeability evolution in triaxial rheological tests of hard rock in dam foundation XU Wei-ya(徐卫亚)1, WANG......
with varying solute contents [J]. Materials Science and Engineering A, 1999, 266(1): 135-145. [11] GEERTRUYDEN W V, MISIOLEK W Z, WANG P T. Grain structure evolution in a 6061 aluminum alloy during hot...J. Cent. South Univ. Technol. (2009) 16: 0530-0534 DOI: 10.1007/s11771-009-0088-1 Deformation behavior and microstructural evolution of Al-Zn-Cu-Mg-Sc-Zr alloy during high temperature compression......
Atomic-scale structural evolution of electrode materials in Li-ion batteries:a reviewYi-Ru Ji1,2,Su-Ting Weng1,2,Xin-Yan Li1,2,Qing-Hua Zhang1,Lin Gu1,2,31. Beijing National Laboratory for Condensed... characterization method to unveil the charge storage mechanism of electrode materials in Li-ion batteries.The structural evolution of electrode materials during charge/discharge process can be directly......
Crystallization and microstructure evolution of amorphous Al85Y4Nd4Ni7 alloyWU Wei, SU Yong, CHEN Yiqing, CHEN Yuanxi, and HU LeiSchool of Materials Science and Engineering, Hefei University... as a nanocomposite of an Al nanoparticle and a remaining amorphous matrix is presented. Its evolution in the process of crystallization has been investigated by differential scanning calorimetry (DSC), X-ray......
Evolution of crystallographic alignment in Tb-Fe-B melt-spun ribbons刘荣明1,邓韵文1,那冉1,刘卫强1,岳明1,张久兴11. College of Materials Science and Engineering,Beijing University of Technology摘 要:Ternary Tb-Fe-B ribbons were prepared via melt-spun technique under different wheel speeds of 5-25 m/s.Effect of wheel speed on the crystal structure and microstructure......