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Microforming of superplastic 2091Al-Li alloyWANG Chang-li(王长丽), ZHANG Kai-feng(张凯锋), DING Shui(丁 水)(School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China)Abstract:Stainless die with micro-groove and micro-hole have been designed and manufactured, which has been used to study superplastic microforming of 2091Al-Li alloy by means of superplastic forming......
Trans. Nonferrous Met. Soc. China 22(2012) s656-s660 Microforming of superplastic 5083 aluminum alloy Md. Abu Mowazzem HOSSAIN1, Sung-Tae HONG1, Kyu-Yeol PARK1, Young-Sang NA2 1. School of Mechanical...: The mechanical behavior of superplastic 5083 aluminum alloy during microforming process was investigated by finite element analysis. A micro V-groove die was modeled to analyze the effects of forming......
: A Microforming behavior of Zr-based bulk metallic glass GUO Xiao-lin, WANG Chun-ju, ZHOU Jian, SHAN De-bin, GUO Bin (School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China) Abstract: The microforming behavior of Zr41.2Ti13.8Cu12.5Ni10Be22.5 bulk metallic glass (Vit.1) in the supercooled liquid region was investigated. The stress-strain relations......
; Abstract: Microforming is an effective method to manufacture small metal parts. However, macro forming can not be transferred to microforming directly... effects were also discussed. Key words: microforming; size effects; flow stress; friction factor; cylinder compression  ......
of Technology, Harbin 150001, China Received 9 July 2012; accepted 10 August 2012 Abstract: To analyze the effect of single grain deformation behaviors on microforming process, a crystal plasticity model... of microforming processes with characteristics, such as scale dependency, scatter of flow stress and inhomogeneous deformation. Key words: microforming; scale effect; crystal plasticity; crystal......
billet or sheet is larger than that of circular section billet. Key words: microforming; flow stress; scale effect; billet dimension; crystal plasticity theory; surface layer model; Hall-Petch relation..., and their technical requirements are higher and higher[1]. Under such circumstance, in 1990s, microforming technology came into being, that is, traditional plastic forming process was applied to micro scale......
络合滴定陈焕光中山大学化学系摘 要:本文综述了国内络合滴定法在螯合剂,金属指示剂,隐蔽剂,终点检测和自动化等方面自1982年以来的发展状况.参改文献169篇.关键词:......
滴定分析张树成南京大学化学系 副教授摘 要:本文是<分析试验室>定期评述中"滴定分析"课题的第三篇文章,前两篇为"络合滴定",本文扩大了内容,故改题为"滴定分析",它述评了1987~1990年6月间国内滴定分析的进展.内容包括新方法和新技术,酸碱滴定法,络合滴定法(1988.7~1990.6),氧化还原滴定法以及沉淀滴定法等.关键词:滴定分析;酸碱滴定;络合滴定;氧化还原滴定;沉淀滴定;......
滴定分析方国桢,谯斌宗,方梅四川大学化学系中国科学院摘 要:滴定分析方国桢1957年毕业于四川大学化学系,留校从事仪器分析科研和教学,现为教授,硕士生导师.主持起草和修订国家标准各一项,获省部级奖四项,在<Analyst>,<Talanta>和国内各刊发表论文90余篇,审订和合编书二本,主编论文集一本(已正式...关键词:滴定分析;评述;......
滴定分析方国桢,方梅,林维明摘 要:这是本刊定期评述中"滴定分析"的第3篇.内容含目视滴定,物理化学滴定,示波滴定,非水滴定等,覆盖1994.9~1997.6在国内发表的文献353篇.关键词:滴定分析;评述;......