共搜索到3021条信息，每页显示10条信息，共303页。用时：0小时0分2秒453毫秒
Superplastic elongation characteristic of fine grained magnesium alloy ZK60LEE Shyong1,CHIANG Chihte1,LEU Jyhshyan11. Department of Mechanical Engineering,National Central University摘 要:superplastic elongation is studied,which has not been done before.关键词:......
for surface defects. They were also radiographed for internal soundness. As a result, superplastic forming specimens were prepared. In order to investigate yield strength and elongation of weld metal, hot... Superplastic formability of Ti-6Al-4V butt-welded plate by laser beam welding WANG Gang(王 刚), ZHANG Wen-cong(张文丛), ZHANG Gong-lei(张功磊), XU Zhi-liang(徐志良) School of Materials Science......
; Abstract: Superplastic deformation mechanism of AZ31B magnesium alloy sheet was investigated. Maximum elongation of 216% and strain rate sensitivity..., and strain rate range was 1×10-4-1×10-3 s-1. Strain rate sensitivity, flow stress and elongation were experimentally measured before the optimized superplastic forming temperature and strain rate......
Abstract: For 7475 Al alloy, there were micrographs showing filaments or whiskers formation during the separation stage of superplastic elongation. This indicates the presence of liquid phase which... structure (3.7 μm) yields 642% superplastic elongation and exhibits fluffy appearance on the fractured surface. For other specimens showing less superplasticity, their fractured surfaces exhibit partial......
; 1 000% elongation[1]. Superplastic forming(SPF) is a manufacturing process that takes advantage of an alloy’s superplasticity. To verify the feasibility and reduce the cost and time of SPF die... Formability and cavitation behavior of superplastic AA5083 aluminum alloy under biaxial tension LUO Ying-bing(罗应兵), LI Da-yong(李大永), PENG Ying-hong(彭颖红) School of Mechanical Engineering, Shanghai......
, and the maximal elongation of 397% is obtained at 900 ℃ and 10?3 s?1. During the superplastic deformation, the initial acicular martensite transforms into lamellar α+β phases. Then, dynamic...:A Superplastic deformation behavior and microstructures of laser welded titanium alloy CHENG Dong-hai, HUANG Ji-hua, LIN Hai-fan, ZHAO Xing-ke, ZHANG Hua (School of Materials Science and Technology......
词:Mg-Gd-Y-Zr合金；第二相；挤压；超塑性变形 中图分类号:TG 146.2 文献标识码:A Effect of second phase on superplastic deformation of extruded rod of Mg-Gd-Y-Zr alloy LI Li1, 2, ZHANG Xin-ming1, DENG... of Technology, Hengyang 421008, China) Abstract: The microstructures and superplastic behavior of the extruded rod of Mg-Gd-Y-Zr alloy before and after tensile were investigated and analyzed......
......
with superplastic metals, i.e. m>0.4. Some of elongation- to-failure values that were recorded at 460, 480 and 500 ℃ are shown in Fig.2. These values of elongation- to-failure ranging from 94% to 130...-to-failures are obtained at strain rate of 10-3 s-1) The influence of temperature on superplastic elongation-to-failure and flow stress was determined. The tests were carried out over the temperature range......
形. 关键词:Mg-Gd-Y-Zr合金；热轧；第二相；超塑性变形行为；微结构 中图分类号:TG 146.2 文献标识码:A Coarse-grained superplastic behavior and microstructural characterization of Mg-Gd-Y-Zr hot-rolled sheet LI... Engineering, Hunan Institute of Technology, Hengyang 421008, China) Abstract: The superplastic behavior and microstructural characteristics of coarse-grained Mg-Gd-Y-Zr rolled sheet with initial grain......
