共搜索到28635条信息，每页显示10条信息，共2864页。用时：0小时0分0秒662毫秒
Microstructures variation of spray formed Si-30%Al alloy during densification process WEI Yan-guang(魏衍广), XIONG Bai-qing(熊柏青), ZHANG Yong-an(张永安), LIU Hong-wei(刘红伟), WANG Feng(王 锋), ZHU Bao-hong... September 2006 Abstract: Microstructure variation of spray-formed Si-30%Al alloy during densification process by hot pressing was studied. The results indicate that the microstructure of as-deposited......
by spray forming process for electronic packaging. Property measurements on spray-formed Si-Al alloys after hot pressing were carried out. The results indicate that the alloys (Si-(30%-40%)Al) have... in the alloys because of characteristics of spray forming process, as shown in Fig.1(a). Fig.1(b) shows metallograph of spray formed Si-30%Al alloy after hot pressing, which is different from......
of intermetallic compound γ′ Ni3(Al,Ti), with a high volume fraction of about 35% and a solvus temperature of 1 130 ℃. By the spray forming process, the spray formed billet was prepared, with a diameter... Hot deformation of spray formed nickel-base superalloy using processing maps KANG Fu-wei(康福伟)1, 2, ZHANG Guo-qing(张国庆)3, LI Zhou(李 周)3, SUN Jian-fei(孙剑飞)1 1. School of Materials Science......
Tensile and high-cycle fatigue properties of spray formed Al10.8Zn2.9Mg1.9Cu alloys after two-stage aging treatment WANG Zi-xing(王资兴)1, 2, ZHANG Yong-an(张永安)1, ZHU Bao-hong(朱宝宏)1, LIU Hong-wei(刘... on the investigation of the tensile properties of spray formed ultra-high strength Al10.8Zn2.9Mg1.9Cu alloys, the high-cycle fatigue properties under different theoretical stress concentration factors were investigated......
contact. Ag layers were formed by either electroplating technique or spray process. Fig.1 Schematic diagrams of interface of Ag precoating layer and Ag spray process layer The pretreated specimens were.... Key words: SFCL; Bi2212; Ag electroplating; Ag spray process ......
INVESTIGATION INTO HOT DEFORMATION BEHAVIOR OF SPRAY FORMED SUPERALLOY GH742 Z.H.Zhang1,S.F.Tian1,G.Q.Zhang1,Z.LI1 (1.National Key Lab. of High Temperature Structural Materials,Beijing Institute of Aeronautical Materials,Beijing 100095,China) Abstract:In order to evaluate the deformation characteristics of spray formed superalloy GH742 and determine the appropriate forging procedure......
. Therefore, in this work, titania containing silver was prepared by spray pyrolysis method. The effects of process parameters, such as pyrolysis temperature and titanic ion concentration on the properties... Preparation of doping titania antibacterial powder by ultrasonic spray pyrolysis WEI Shun-wen(韦顺文)1, PENG Bing(彭 兵)1, CHAI Li-yuan(柴立元)1, LIU Yun-chao(刘云超)1, LI Zhu-ying(李竹英)2 1. School......
micro-cells formed by the base metal and the thermal spray coating act as cathodes and anodes, respectively. The coating thickness has little effect on the surface morphology of the coating. However... spray spreads platy or radial shape after clashing base metal with high velocity. After that, small particle is separated in the thin and unstable end part, and porosity of middle size is formed, when......
Hot deformation behavior of spray formed Al-22Si-5Fe-3Cu-1Mg alloyJIA Yan-dong, CAO Fu-yang, NING Zhi-liang, SUN Xiao-bing, SUN Jian-fei(School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China)Abstract:The hot deformation behavior of a spray formed Al-22Si-5Fe-3Cu-1Mg alloy was investigated by isothermal compression tests at temperature ranging from 350......
Effect of P/M value on the preforms and microstructures of spray formed 70Si30Al alloyYanguang Wei, Baiqing Xiong, Yongan Zhang, Hongwei Liu, Feng Wang, and Baohong Zhu State Key Laboratory... was prepared by the spray forming process for electronic packaging materials. The effect of the ratio of atomization pressure to metal melt mass flux rate (P/M) on the preforms and microstructures......
