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. The result shows that the microstructure is homogeneous and the CeO2 particles are dispersed after severe plastic deformation. The relationship between true strain (η) of severe plastic deformation...Inner Oxide Fabrication and Severe Plastic Deformation Microstructure Homogenization of Silver Cerium Oxide Composites周晓龙,陈敬超,曹建春,杜焰,张昆华,孙加林摘 要:Fabrication......
J. Cent. South Univ. (2017) 24: 1671-1675 DOI: 10.1007/s11771-017-3573-y Initial densification strain point’s determination of honeycomb structure subjected to out-of-plane compression WANG Zhong... for cellular structures on energy absorption. In the present work, theoretical formulas to determine the initial densification strain of honeycomb structure were put forward by means of minimum energy......
J. Cent. South Univ. Technol. (2009) 16: 0349-0353 DOI: 10.1007/s11771-009-0059-6 A new method of characterizing equivalent strain for equal channel angular processing ZHAO Jun(赵 军)1, 2, 3...: In order to establish the quantitative relationship between equivalent strain and the performance index of the deformed material within the range of certain passes for equal channel angular processing (ECAP......
, Northwestern Polytechnical University, Xi’an 710072, China) Abstract: The mechanical behavior of cast AZ91 under a wide range of strain rates (10?3?104 s?1) was described by using INSTRON testing system and Split Hopkinson Pressure Bar. The dynamic behavior (strain rate 6×102?1×104 s?1) of AZ91 was studied. The fracture surface of samples at different strain rates was examined by scanning electron......
性累积损伤,导致轮缘根部表面材料剥离损伤,这与现场观察到的踏面剥离基本吻合. 图10 轮轨等效塑性应变随轮对横移量的变化 Fig. 10 Change of equivalent plastic strain of wheel-rail with wheelset transverse shift 图11 轮轨等效塑性应变云图 Fig. 11 Equivalent plastic strain.... Analysis of wheel/rail contact stresses and rail corrugation[J]. Journal of Southwest Jiaotong University, 2003, 38(1): 34-37. [14] KULKARNI S M, HAHN G T, RUBIN C A, et al. Elasto-plastic finite element......
hardening law that is the curve of pressure versus volumetric plastic strain. The definition of volumetric plastic strain is εvp=ε11+ε22+ε33, where ε11, ε22 and ε33 are true strain values..., R=0.23. Fig.3 Curve of volumetric plastic strain versus pressure for 304 stainless steel powder (εvp is volumetric plastic strain; p is pressure) The model after CIP is shown in Fig.5 where......
by the white-light coherence method, and the results revealed that the range of the plastic zone is enlarged with the increasing K(or crack length), while the plastic strain decreased rapidly...Fatigue crack tip plastic zone of α+β titanium alloy with Widmanstatten microstructureYingjie Ma1,2,Sabry S.Youssef1,2,Xin Feng1,Hao Wang1,2,Sensen Huang1,3,Jianke Qiu1,Jiafeng Lei1,2,Rui Yang1,21......
. Many shear bands around the indent were observed. The as-prepared Fe-based BMG exhibits a compressive plastic strain of 5.21%, which is much larger than that of other Fe-based glassy alloys and most...Plastic deformation behavior of Fe40Ni40P14B6 bulk metallic glass investigated by nanoindentationChangqing Zhang and Kefu Yao Key Laboratory for Advanced Manufacturing by Materials Processing......
Dynamic recrystallization of electroformed copper liners of shaped charges in high-strain-rate plastic deformationWenhuai Tian, Hongye Gao, Ailing Fan, Xiaoou Shan, and Qi SunDepartment of Materials...;The microstructures in the electroformed copper liners of shaped charges after high-strain-rate plastic deformation were investigated by transmission electron microscopy (TEM). Meanwhile, the orientation......
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...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......
