共搜索到4021条信息,每页显示10条信息,共403页。用时:0小时0分0秒368毫秒
at 623 K. This is mainly attributed to rotational dynamic recrystallization (RDX) during the hot rolling. Key words: AZ31 magnesium alloy; texture; extruded sheet; inverse pole figure  ... planes of two components are shown to be shaded) 3.2 Microstructure and texture evolution during annealing and hot rolling after extrusion The average grain size of the extruded sheet after annealing......
Microstructure and mechanical properties of extruded AZ31 magnesium alloy sheetWANG Xin,and FENG Jicai School of Materials Science and Engineering,Harbin Institute of Technology,Harbin 150001,China摘... investigated.It is found that with the temperature decreasing,the microstructure of extruded sheets is more homogeneous and the grains become smaller.The grain refinement does little effect......
Annealing behavior of rolled AZ31 alloy sheet PENG Wei-ping(彭伟平), LI Pei-jie(李培杰), ZENG Pan(曾 攀) Key Laboratory for Advanced Manufacturing by Materials Processing Technology, Tsinghua... to equiaxed grains with uniform and homogeneous structures. The changes of microstructure decreased the yield strength and enhanced the elongation. The analysis of XRD shows that the AZ31 alloy sheet......
EBSD analysis on aluminum brazing sheet forautomotive heat exchangers JI Yan-li(纪艳丽)1, GUO Fu-an(郭富安)1, SHEN Jian-sheng(沈健生)2 1. Suzhou Institute for Nonferrous Metals Processing Technology...) in the vicinity of clad-core interface in annealed aluminum brazing sheet was investigated by EBSD technique. The results show that, with the increase of annealing temperature, the frequency of special boundaries......
at about 60 ?C, and then was hot extruded into sheet with dimensions of 80 mm×2 mm on the cross section. The extrusion ratio was 31?1 and the extrusion temperature was 410 ?C. Following extrusion, aging..., a basal texture is formed in the as-extruded sheet, and the mechanical anisotropy can be influenced by the texture distribution as well[16].4 Conclusions 1) The Mg-6.5Gd-1.3Nd-0.7Y-0.3Zn alloy......
, as shown in Fig. 3. In zones Is and Ic, the incoming sheet is assumed to flow horizontally as rigid body with velocity Vo. In zones IIIs and IIIc, the extruded sheet is assumed to flow horizontally...Trans. Nonferrous Met. Soc. China 24(2014) 3285-3292 Upper bound analysis for hybrid sheet metals extrusion process through curved dies H. HAGHIGHAT, H. SHAYESTEH Mechanical Engineering Department......
the recirculation zone. During crossing the sonic boundary, liquid droplets are extruded into sheets. As the surface area expands promptly, the metal sheets surface tension increases similarly. When...Article ID: 1003-6326(2005)05-0985-08 Melt metal sheet breaking mechanism of close-coupled gas atomization OUYANG Hong-wu(欧阳鸿武), HUANG Bai-yun(黄伯云), CHEN Xin(陈 欣), YU Wen-tao(余文焘) (State......
the ambient formability of extruded Mg alloy sheet fabricated by ASE path was accomplished by the tilted weak basal texture.关键词:...) paths were performed on Mg alloy sheets. The textures at near surface and mid-layer of ASE sheets were various throughout sheet thickness direction as a result of extra asymmetric shear strain. This can......
Effect of properties of sheet metal on shear stress wrinklingCUI Ling-jiang(崔令江), ZHANG Wen-cong(张文从)(School of Materials Science and Engineering,Harbin Institute of Technology(Weihai), Weihai 264209, China)Abstract:The shear stress wrinkling in forming large thin-sheet is very common and hard to be eliminated. The property of sheet metal is one of the most important factors that have great......
is the nodal velocity distributions after unloading. From the figure it is clear that the sheet is slowly bent and slided into the dies, then extruded and finally ironing formed by punch and die... the sheet is extruded ironing between the punch and die. Therefore, the ironing function can improve the shape of hole-flanging process. Fig.9 Cross-sectional views of finished lip at various......