共搜索到26698条信息，每页显示10条信息，共2670页。用时：0小时0分0秒727毫秒
......
......
alloy HU Hui-fang, LI Hua-ji (College of Materials Science and Engineering, Chongqing University, Chongqing 40030, China) Abstract: The stereo-morphology and growth mechanism of five-pyramid prismatic-shaped primary Si in hypereutectic Al-24%Si alloy were investigated. The results show that the growth traces of the five-pyramid prismatic-shaped primary Si exists layer by layer, paralleling......
modeling of phase diagram. The dendritic growth of Ti-Al alloy with a quasi-sub regular solution model was simulated in both an isothermal and a non-isothermal regime. In the isothermal one, different... on them much. So, it is necessary to construct the phase-field model for simulating dendritic growth of a special alloy, which is associated with its phase diagram closely. In this paper, dendritic growth......
Mg alloy surface alloying layer fabricated through evaporative pattern casting technology CHEN Dong-feng(陈东风), DONG Xuan-pu(董选普), ZHANG Xiong(张 雄), FAN Zi-tian(樊自田) State Key Laboratory... factors of surface alloying layer by evaporative pattern casting technology were investigated. A certain thickness alloying layer was formed on the surface of Mg-alloy matrix when the pouring temperature......
Effects of Buffer Layer on Hetero-Epi-Growth of SiCGe on 6H-SiC Li Lianbi1,Lu Gang1,Pu Hongbin1,Tan Changxing1,Chen Zhiming1 (1.Department of Electronic Engineering, Xi′an University of Technology, Xi′an 710048, China) Abstract:Growth of SiCGe ternary alloy on 6H-SiC in a conventional hot-wall CVD system was initially studied. SiH4, GeH4 and C3H8 were employed as silicon, germanium and carbon......
those in the inner layer vary significantly with sputtering depth. The thicknesses of the intermediate layer and the inner layer are 2 μm and 1.0- 1.5 μm, respectively. Moreover, the growth mechanism of porous anodic oxide films in neutral tartrate solution was proposed. Key words: titanium alloy; porous anodic oxide films; morphology evolution; growth mechanism 1 Introduction Anodic......
Trans. Nonferrous Met. Soc. China 22(2012) 2212-2219 Modeling of equiaxed and columnar dendritic growth of magnesium alloy WU Meng-wu1, 2, XIONG Shou-mei1, 2 1. Department of Mechanical Engineering... Abstract: Based on the cellular automaton (CA) method, a numerical model was developed to simulate the dendritic growth of magnesium alloy with HCP crystal structure. The growth kinetics was calculated......
......
Corrosion protection of composite coating combining ceramic layer, copper layer and benzotriazole layer on magnesium alloy JIANG Yong-feng(蒋永锋), BAO Ye-feng(包晔峰), ZHANG Guo-wei(张国伟) College... that a network of fine, largely surface-connected pores is presented in PEO coating [14]. Regarding the AZ91 alloy with the novel composite coating combination of PEO layer, electroless copper layer and BTA......
