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, Fuzhou 350002, China) Abstract:The behavior of flow stress of Al sheets used for pressure can prepared by different melt-treatment during plastic deformation at elevated temperature was studied..., and an Arrhenius relationship with the temperature, which implies that the process of plastic deformation at elevated temperature for this material is thermally activated. Compared with the Al pieces prepared......
University of Technology, Changzhou 213001, China) Abstract: The effect of strain strengthening on the fatigue and cyclic plastic deformation of 022Cr17Ni12Mo2 stainless steel was studied. The results show that, the strain strengthening not only improves the yield strength, but also extends the fatigue life of 022Cr17Ni12Mo2. Moreover, the strain strengthening inhibits the cyclic plastic deformation. When......
plastic deformation using ultrasonic shot peening[2-4], high- energy shot peening(HESP)[5,6], surface mechanical attrition treatment(SMA)[7-9], wire-brushing[10] and circulation rolling plastic... of the temperature. But the hardness of the plastic deformation region is still higher than that of the matrix. Until annealing at 400 ℃ and 500 ℃, there is no evident difference between the plastic......
because of high deformation temperature. Key words: Ti-Al-Zr-Sn-Mo-Si-Y alloy; high temperature titanium alloy; hot deformation; microstructure high deformation temperature. References [1] HONG Quan, ZHANG Zhen-qi, YANG Guan-jun, LUO Guo-zhen......
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 that they no longer cut effectively[20]. The former two failure modes based on deformation and diffusion are temperature dependent and come into play at high cutting speeds[21, 22]. As for diffusion......
compression[J]. Scripta Materialia, 2004, 51: 881?885. [14] BARBAGALLO S, CAVALIERE P, CERRI E. Compressive plastic deformation of an AS21X magnesium alloy produced by high pressure die casting at elevated...; 文献标识码:A Closing and repairing process of Mg alloy casting imperfections in plastic deformation CAO Han-xue1, 2, LONG Si-yuan1, 2, YOU Guo-qiang1, 2, LIAO Hui-min1 (1. College......
Multi-powder dam concrete with high performance and low adiabatic temperature rise LI Xin-yu(李新宇)1, CHEN Wen-yao(陈文耀)2, CHEN Wei-min(陈炜旻)1 1. Hydrochina Huadong Engineering Corporartion... unit water consumption and cement is used in multi-powder concrete, and under premise of equal mechanical performance, deformation, thermal performance and durability, the adiabatic temperature rise......
developed severe plastic deformation (SPD) techniques, which induces high plastic strains in bulk materials by uniform simple shear, thus ultra-fine grains can be obtained and the properties can... Inhomogeneity and anisotropy of microstructure and mechanical properties in severe plastic deformation processed pure copper KANG Feng(康 锋)1, WANG Jing-tao(王经涛)1, DU Zhong-ze(杜忠泽)2 School......
. Key words: high purity tungsten; indentation hardness; indentation size effect; grain boundary; plastic deformation zone 1 Introduction Indentation tests have widely been used as an effective...], characteristic size plastic deformation [19] and a critical thickness layer [20]. Among all the explanations, Nix-Gao model [21] based on GNDs and Taylor dislocation model [22] might be the most......
by LEBENSOHN and TOME [26] was used to simulate the plastic deformation of Zr at high temperature. In this section, only a brief description of the model is given for definition and notation. Details can... are related to the texture resulting from prior forming processes. In order to investigate the high temperature deformation behavior of α-Zr, compression tests at 700 °C, microstructure measurements via EBSD......