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Effects of specimen size on flow stress of micro rod specimen WANG Chun-ju(王春举)1, GUO Bin(郭 斌)1, SHAN De-bin(单德彬)1, SUN Li-ning(孙立宁)2 1. School of Materials Science and Engineering...: With the miniaturization of parts, size effects occur in the micro-forming processes. To investigate the effects of the specimen size on the flow stress, a series of upsetting deformation experiments were carried out......
Flow stress and tribology size effects in scaled down cylinder compression GUO Bin(郭 斌)1, 2, GONG Feng(龚 峰)1, WANG Chun-ju(王春举)1, 2, SHAN De-bin(单德彬)1, 2 1. School of Materials Science... because of size effects. Flow stress and tribology size effects were studied. Scaled down copper T2 cylinder compression was carried out with the lubrication of castor oil and without lubrication......
; Abstract: Micro-bending tests were performed to investigate effects of thickness and grain size on material behavior... radius leads to a larger bending force. When the grain size increases, the bending force becomes smaller. Size effects are observed obviously. These results have been analyzed by work-hardening, Hall......
Size and shape effects on Curie temperature of ferromagnetic nanoparticles CAO Ling-fei(曹玲飞)1, XIE Dan(谢 丹)2, GUO Ming-xing(郭明星)3, H.S. Park1, T. Fujita1 1. School of Engineering, University... suppression.The first one should be mentioned is the scaling theory established by FISHER and BARBER[6] for finite-size effects in ferromagnetic systems. Based on the spin-spin correlation length......
Effects of particle size on residual stresses of metal matrix composites YAN Yi-wu(晏义伍), GENG Lin(耿 林), LI Ai-bin(李爱滨) School of Materials Science and Engineering, Harbin Institute of Technology..., and the residual plastic strain decreases with decreasing particle size. Key words: metal matrix composite; thermal residual stress; particle size effects; non-local theory; finite element analysis 1......
, such as grain size, elastic modulus, plastic strain hardening exponent, initial yield stress, as well as twin lamellar distribution, which may contribute to size effects of twin layers in Cu polycrystalline. The results provide information to understand the mechanical behaviors of Cu with nano-scale growth twins. Key words: copper; twins; strain gradient plasticity; size effects, numerical simulation......
弧管的力学性能. 关键词:氧化铝电弧管；Tb2O3掺杂；微观组织；力学性能 中图分类号:TB 321; TB 174.75 文献标识码:A Effects of Tb2O3 doping on microstructures and properties of alumina arc tube HUO Di1, SUN Xu-dong1... was also investigated for comparison. The results show that, contrasting to the coarse grain size and uniform microstructures of the alumina arc tube doped with CaO, heavy rare-earth Tb2O3 doping can......
alloys [J]. J Alloys Compd, 2006, 414: 235-239. [2] ILZE M, JANIS M. Size effects in micro- and nanoscale indentation [J]. Acta Mater, 2006, 54: 2049-2056. [3] QIAN J, DAEMEN L L, ZHAO Y. Hardness... effects [J]. J App Mech, 2002, 69: 433-442. [16] NIX W D, GAO H. Indentation size effects in crystalline materials: A law for strain gradient plasticity [J]. J Mech Phys Solids, 1998, 46: 411-425......
Effects of cell size on compressive properties of aluminum foam CAO Xiao-qing(曹晓卿)1,2, WANG Zhi-hua(王志华)2, MA Hong-wei(马宏伟)2, ZHAO Long-mao(赵隆茂)2, YANG Gui-tong(杨桂通)2 1. College of Materials...; Abstract: The effects of cell size on the quasi-static and dynamic compressive properties of open cell......
University of Science and Technology2. Suzhou Key Laboratory of Precision and Efficient MachiningTechnology摘 要:Size effects make traditional forming theories infeasible in analyzing the micro-forming process, so it is necessary to develop an accurate material model to describe the material flow behavior with consideration of size effects. By studying......
