共搜索到7793条信息,每页显示10条信息,共780页。用时:0小时0分0秒519毫秒
; lamellar microstructures; cell method; numerical modeling CLC number: TB331 Document code: A microstructures WANG Jin-cheng(王锦程)1, ZHANG Zhong-ming(张忠明)2, YANG Gen-cang(杨根仓)1......
......
38.67MPa for MIG-pulse welds to 53.59MPa for FSW welds. Key words: friction stir welding; MIG-pulse welds; fatigue properties; microstructures CLC number: TG405 Document code: A 1 ... welds of the 5083 Al-Mg alloy, including fatigue life and fatigue characteristic values, and to compare the results with MIG-pulse welding. In addition, the microstructures of the two types of joints......
CLC─I/Ⅱ型除尘除氡子体净化器何平云锡公司摘 要:CLC─I/Ⅱ型除尘除氡子体净化器由云南锡业公司与东北工学院共同研究成功的CDC─I/Ⅱ型除尘除氧子体净化器,自1990年在北京通过了由中国有色金属工业总公司组织的专家鉴定,经云南省部份有色系统矿山单位使用后,反映良好,目前已销售出近百台.该产品荣获...关键词:......
......
Microstructures of AZ91D alloy solidified during electromagnetic stirring MAO Wei-min(毛卫民), ZHEN Zi-sheng(甄子胜), CHEN Hong-tao(陈洪涛) (School of Materials Science and Engineering,University of Science... parameters on the microstructures of semi-solid AZ91D alloy was mainly studied at the stirring frequency of 200Hz. The experimental results show that when the stirring power rises, the primary α-Mg......
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... to the diffusion of atoms during densification process. Key words: Si-30%Al alloy; spray forming; electronic packaging materials; microstructures variation; densification process 1 Introduction A new......
Article ID: 1003-6326(2005)02-0379-05 Directionally solidified microstructures and peritectic phase growth of Cu-75%Sn peritectic alloy LI Shuang-ming(李双明)1, Lū Hai-yan(吕海燕)1, ZHANG Rong(张..., Northwestern Polytechnical University, Xi′an 710072, China) Abstract: Directionally solidified microstructures of Cu-75%Sn peritectic alloy were investigated at the growth rate ranging from 1......
Effect of Mg on microstructures and properties of Al-Mg-Si-Cu aluminium alloys for automotive body sheets LIU Hong(刘 宏)1, 2, SONG Wen-ju(宋文举)1, ZHAO Gang(赵 刚)1,LIU Chun-ming(刘春明)1, ZUO...′nan 250100, China) Abstract: The effects of variation of Mg content on microstructures, the tensile properties and the formability of Al-Mg-Si-Cu alloys for automotive body sheets were investigated......
Effect of low frequency electromagnetic field on microstructures and macrosegregation of horizontal direct chill casting aluminum alloy ZHAO Zhi-hao(赵志浩), CUI Jian-zhong(崔建忠), DONG Jie(董 杰... of low frequency electromagnetic field on cast surface, microstructures and macrosegregation in horizontal direct chill(HDC) casting process were investigated experimentally. The cast surfaces......