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and Engineering,Chongqing University摘 要:The microstructures of the as-rolled magnesium alloy subjected to dynamic plastic deformation along the rolling direction...(ε<8%),lamellar thickness decreases significantly with strain,from 5.55 to 2.49μm.The evolution of lamellar thickness during deformation is directly related to {1012} twin activity.When plastic strain......
Effect of Plastic Deformation and H2S on Dynamic Fracture Toughness of High Strength Casing Steel曾德智1,ZHANG Naiyan1,TIAN Gang2,HU Junying1,ZHANG Zhi1,SHI Taihe11. State Key Laboratory of Oil & Gas... of plastic deformation and H2 S on fracture toughness of high strength casing steel(C110 steel) were investigated. The studied casing specimens are as follows: original casing, plastic deformation(PD......
threshold of energy-absorbing components of trains, a control method is presented based on the ways of setting plastic deformation induced structure, local hole and pre-deformation structure. To realize... running speed, the structure of train has to meet some requirements to protect the passengers, including collapse in the pre-determined area, producing a large plastic deformation and absorbing enough......
Annealing-induced Hardening in a Nanostructured Low-carbon Steel Prepared by Using Dynamic Plastic DeformationL.X.Sun1,N.R.Tao1,K.Lu11. Shenyang National Laboratory for Materials Science,Institute of Metal Research,Chinese Academy of Sciences摘 要:Lamellar nanostructures were induced in a plain martensitic low-carbon steel by using dynamic plastic......
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Effects of plastic deformation on precipitation behavior and tensile fracture behavior of Mg-Gd-Y-Zr alloy LIN Dan1, WANG Lei1, LIU Yang1, CUI Jian-zhong2, LE Qi-chi2 1. Key Laboratory..., Northeastern University, Shenyang 110004, China Received 30 October 2010; accepted 27 May 2011 Abstract: The effects of plastic deformation on precipitation behavior and tensile fracture behavior......
Dynamic Plastic Deformation (DPD):A Novel Technique for Synthesizing Bulk Nanostructured MetalsNairong TAO Ke LU~+ Shenyang National Laboratory for Materials Science,Institute of Metal Research... investigations over decades. Here we report a novel synthesis technique for bulk nanostructured metals based on plastic deformation at high Zener-Hollomon parameters(high strain rates or low......
Molecular Dynamics Simulations of the Orientation Effect on the Initial Plastic Deformation of Magnesium Single CrystalsQun Zu1,Ya-Fang Guo1,Shuang Xu2,Xiao-Zhi Tang1,Yue-Sheng Wang11. Institute... results show that the initial defects usually nucleate at free surfaces,but the initial plastic deformation and the subsequent microstructural evolutions are various due to different loading......
of severe plastic deformation induced by the high-speed high-pressure torsion(HSHPT) process on the microstructural evolution of an Fe–Mn–Si–Cr alloy was investigated. Transmission electron microscopic analysis of the alloy revealed the existence of nanoscale grains with an abundance of stacking faults. The high density of dislocations characteristic of severe plastic deformation was not observed......
of grain (or phase) boundaries and accommodation, through plastic deformation and mass movement of directional diffusion, of the resulting stress concentration at the grain boundary triple junction. Mass movement of directional diffusion needs low strain rate and is not obvious above 0.001 s-1. Therefore, plastic deformation and the sliding of grain boundary are the main mechanisms......
