共搜索到10812条信息，每页显示10条信息，共1082页。用时：0小时0分0秒620毫秒
......
and process, including plastic deformation under compressive stress, diffusion wear, attrition wear and abrasive wear, etc, appear to be the main ways in which carbide tools are worn or change shape so...Article ID: 1003-6326(2005)02-0437-06 Computer aided design of free-machinability prehardened mold steel for plastic HE Yan-lin(何燕霖)1, LI Lin(李 麟)1, GAO Wen(高 雯)2, WANG Qing-liang(王庆亮)2......
爆炸焊,熔化焊及压力焊的连接特征 郑庆平1 (1.洛阳船舶材料研究所 洛阳471039) 摘要:论述和分析了爆炸焊,熔化焊及压力焊的不同连接机理和共同的冶金连接的本质特征,用比较和联系的方法阐述了爆炸焊接冶金结合的实质. 关键词:焊接冶金; 塑性变形; 活化; 扩散; Welding metallurgy Plastic deformation Activation Diffusion; [全文内容正在添加中] ......
Numerical simulation of strain localization and damage evolution in large plastic deformation using mixed finite element methodZhanghua Chen;Jiajian Jin;Jiumei Xiao Applied Science School, University... localization and damage evolution inlarge plastic deformation. The simulation is carried out by using an elastic-plastic-damage coupling finite element program that isdeveloped based on the concept......
, there are three main slip systems in magnesium alloy: basal, prismatic and pyramidal. According to the von Mises criterion, the activity of ?ve independent slip systems is required for plastic deformation... start to move, which, in turn, leads first to preferential plastic deformation within the alloy[5]. On the other hand, the as-cast grain boundaries and secondary phases impose influence......
is prolonged. From the deformation, the range and value of the frost heave are decreased. In the embankment of the horizontal plastic drain, the max value of thaw settlement is up to 3.7 mm... in superficial layer, the influence of precipitation and evaporation are weaken, the deformation values of the frost heave are decreased in the horizontal plastic drain embankment. Key words: permafrost......
grain in size less than 10 μm is crucial in superplastic deformation of materials. Many researchers have produced fine-grained microstructure of the alloy via severe plastic deformation (SPD... D H. High strain rate superplasticity of submicrometer grained 5083 Al alloy containing scandium fabricated by severe plastic deformation [J]. Materials Science and Engineering A, 2003, A341: 273-281......
A Diagram for Glass Transition and Plastic Deformation in Model Metallic GlassesX.Q.Gao,W.H.Wang,H.Y.BaiInstitute of Physics, Chinese Academy of Sciences摘 要:In this paper, we report a strain rate related glass transition in model SrCaYbMg(Li)Zn(Cu) metallic glasses at room temperature. A critical strain rate, equivalent to glass transition temperature......
Flow behavior of Ti-46.2Al-2.5V-1.0Cr-0.3Ni alloy in secondary hot deformation SI Jia-yong(司家勇), HAN Peng-biao(韩鹏彪), CHANG Xia(昌 霞), ZHANG Ji(张 继) High Temperature Material Research Division... was investigated by the isothermal compression experiments. The direction of secondary hot deformation was taken to be vertical to the former forging axis. And the deformation activation energy......
Mechanism of localized severe plastic deformation and damage fracture in fine-blanking using mixed displacement and pressure FEM XIE Xiao-long(谢晓龙)1, ZHAO Zhen(赵 震)1, YU Song(虞 松)1, GU Sheng... Engineering Co Ltd, Suzhou 215004, China Received 4 November 2005; accepted 12 April 2006 Abstract: A mixed displacement-pressure updated Lagrange FEM was used to simulate the severe plastic deformation......
