共搜索到10423条信息,每页显示10条信息,共1043页。用时:0小时0分0秒564毫秒
Partial Remelting of Thixotropic Magnesium-Rare Earth Alloy from Near Non- Equilibrium- Liquidus Casting Cui Jianzhong1,Le Qichi1,Xu Baoqin1,Wang Zhongjun1 (1.Key Laboratory of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University,Shenyang 110004, China) Abstract:After the investigation on partial remelting of thixotropic magnesium serial alloys (ZK60) by near......
Influence of Supports on Catalytic Performance and Carbon Deposition of Palladium Catalyst for Methane Partial Oxidation Weng Duan1,Shi Fangli2,Shen Meiqing2,Fei Yanan2,Wang Jun2 (1.Department...,Tianjin University,Tianjin 300072,China) Abstract:The catalytic performance of methane partial oxidation was investigated on Pd/CeO2-ZrO2 and Pd/α-Al2O3 catalysts. The catalysts were characterized......
Effect of different mixing ways in palladium/ceria-zirconia/alumina preparation on partial oxidation of methane WANG Jun1,WEN Jing1,SHEN Meiqing1,ZHANG Qingwei1 (1.Key Laboratory for Green Chemical... oxides on the partial oxidations of methane (POM) was investigated over Pd/Ce0.7Zr0.3O2-Al2O3 catalysts, the mixing ways including salt precursor mixing (ATOM), precipitator mixing (MOL), and powder......
Microstructural evolution during partial remelting of AM60B magnesium alloy refined by MgCO3 CHEN Ti-jun(陈体军), MA Ying(马 颖), WANG Rui-quan(王瑞全), LI Yuan-dong(李元东), HAO Yuan(郝 远) Key... by MgCO3 and its microstructural evolution was investigated during partial remelting. The results indicate that MgCO3 is an effective grain refiner for AM60B alloy and can decrease the grain size from......
at 650 °C. In this method, based on the thermodynamic estimation, the oxygen partial pressure of nitrogen gas could be reduced to 10-6 Pa. Fig.1 Schematic diagram of gas preparation system... Semisolid joining of aluminum A356 alloy by partial remelting and mechanical stirring S. M. J. ALVANI1, H. AASHURI1, A. KOKABI1, R. BEYGI1 Materials Science and Engineering Department, Sharif......
Article ID: 1003-6326(2005)02-0336-04
Recovery stress characteristics of TiNi alloy wires after partial martensitic transformation under different constraint conditions
XING Ting-yong(邢廷勇), ZHENG....
Key words: TiNi wire; partial transformation; recovery stress rate; bias spring CLC number: TB381
Document code: A
响,适当降低铸造冷却速率,即采用石墨模能提高二次重熔组织的均匀性和稳定性. 关键词:ZK60镁合金;近液相线铸造;部分重熔;微观组织 中图分类号:TG146.2;TG292 文献标志码:A Partial remelting of semi-solid metal ingots of ZK60-2Ca magnesium alloy CAO...: Partial remelting is the important part of semi-solid metal (SSM) ingots forming technology. In order to obtain small and round grain organization microstructure, the microstructure evolution of ZK60......ZK60-2Ca镁合金半固态坯料的部分重熔
来源: 《中国有色金属学报2014年第1期》——曹 婧 乐启炽 张志强 宝 磊 崔建忠
, a thermometer and a variable speed stirrer. Gas was supplied by an oxygen pump and a nitrogen pump with adjustable flow meters. And oxygen partial pressure was controlled by adjusting the flow rate ratio... temperature. Then, gas was injected into the pulp with required flow rate and oxygen partial pressure. Stirrer was set to the required speed after 3.20 g matte sample was added. The typical test conditions......
enclosure; partial heating; parallelogram; nanofluids Cite this article as: Abdullah A.A.A AL-RASHED, Walid HASSEN, Lioua KOLSI, Hakan F. OZTOP, Ali J. CHAMKHA, Nidal ABU-HAMDEH. Three-dimensional... and different Lh and α 6 Conclusions The 3D natural convection in open sided parallelepedic cavity filled with nanofluid in the presence of partial square heater on the bottom wall is studied numerically......
Corrosion behavior of nickel-based 718 alloy determined by in situ electrochemical methods at different partial pressures of H2S in 25 wt% NaCl solution at 150℃Yu-Bi Zhang,Xiao-Liang Yang... alloy at seven partial pressures of H2 S(PH2 S)was investigated using electrochemical impedance spectroscopy(EIS)and polarization methods in 25 wt% NaCl solution at150℃ for 168 h.The tested results show......