CYCLIC DEFORMATION BEHAVIOR OF A COPPER BICRYSTAL WITH A PERPENDICULAR GRAIN BOUNDARY
ZHANG Zhefeng; WANG Zhongguang; SU Huihe(State Key Laboratory for Fatigue and Fracture of Materials; Institute of Metal Research; The Chinese Academy of Sciences; Shenyang 110015)Correspondent: ZHANG Zhefeng Tel: (024)23843531-55225; Fax: (024)23891320
Cite this article:
ZHANG Zhefeng; WANG Zhongguang; SU Huihe(State Key Laboratory for Fatigue and Fracture of Materials; Institute of Metal Research; The Chinese Academy of Sciences; Shenyang 110015)Correspondent: ZHANG Zhefeng Tel: (024)23843531-55225; Fax: (024)23891320. CYCLIC DEFORMATION BEHAVIOR OF A COPPER BICRYSTAL WITH A PERPENDICULAR GRAIN BOUNDARY. Acta Metall Sin, 1998, 34(8): 841-846.
Abstract Based on the observations of slip patterns and saturation dislocation patterns,the cyclic stress-strain response was investigated by cyclically loading a copper bicrystal with a grain boundary perpendicular to the stress axis under constant plastic strain control. The results showed that the cyclic stress-strain (CSS) curve displayed a double plateau region in the plastic strain range of 1.80 × 10-4 － 2.56 × 10-3. The plateau saturation axial stresses were 62 - 64 MPa and 70 - 71 MPa respectively at axial plastic strain range of 1.80× 10-4－ 1.35× 10-3 and 2.04× 10-3 － 2.56× 10-3. The effects of component crystal orientation on the slip characteristics, saturation dislocation patterns and CSS curve were discussed.
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LI Xiaowu; WANG Zhongguang; SUN Shouguang; WU Shiding;LI Shouxin;LI Guangyi (State Key Laboratory for Fatigue and Fracture of Materials; Institute of Metal Research; The Chinese Academy of Sciences; Shenyang 110015)(Department of Mechanical Engineering; Northern Jiaotong University; Beijing 100044). CYCLIC DEFORMATION BEHAVIOR OF [011] MULTIPLE-SLIP-ORIENTED COPPER SINGLE CRYSTALSCyclic Stress-Strain Response[J]. 金属学报, 1998, 34(5): 545-551.
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HU Yunming;WANG Zhongguang(State Key Laboratory for Fatigue and Fracture of Materials; Institute of Metal Research; The Chinese Academyof Sciences; Shenyang 110015)Correspondent; HU Yunming; Tel: (024)23843531-55gg5; Fax: (024)23891s20Manuscript received 1997-12-17; in revised form 1998-01-30. CYCLIC DEFORMATION BEHMIOR AND FATIGUE CRACK INITIATION IN COPPER BICRVSTALS[J]. 金属学报, 1998, 34(12): 1255-1260.
I. Cyclic Deformation Behavior and Slip Morphology HU Yunming; WANG Zhongguang (State Key Laboratory for Fatigue and Fracture of Materials; Institute of Metal Research; Chinese Academy ofSciences; Shenyang 110015) (Manuscript received 1996-09- 12; in revised form 1997-03-07). CYCLIC DEFORMATION BEHAVIOR AND FATIGUE CRACK INIT1ATION IN COPPER BICRYSTALS[J]. 金属学报, 1997, 33(8): 814-823.
