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EFFECT OF SLIP ORIENTATION ON STRESS RESPONSE, INTERNAL FRICTION AND ULTRASONIC ATTENUATION DURING CYCLIC DEFORMATION IN Al SINGLE CRYSTALS |
XIA Yuebo;ZHANG Tianyi;FEI Guangtao;ZHOU Xing State Key Laboratory for Fatigue and Failure of Materials; Institute of Metal Research; Academia Sinica; Shenyang Laboratory of Internal Friction and Defects in Solids; Institute of Solid State Physics; Academia Sinica; Hefei Correspondent associate professor; Insttitute of Metal Research; Academia Sinica; Shenyang 110015 |
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Cite this article:
XIA Yuebo;ZHANG Tianyi;FEI Guangtao;ZHOU Xing State Key Laboratory for Fatigue and Failure of Materials; Institute of Metal Research; Academia Sinica; Shenyang Laboratory of Internal Friction and Defects in Solids; Institute of Solid State Physics; Academia Sinica; Hefei Correspondent associate professor; Insttitute of Metal Research; Academia Sinica; Shenyang 110015. EFFECT OF SLIP ORIENTATION ON STRESS RESPONSE, INTERNAL FRICTION AND ULTRASONIC ATTENUATION DURING CYCLIC DEFORMATION IN Al SINGLE CRYSTALS. Acta Metall Sin, 1992, 28(6): 33-39.
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Abstract Studies were made of the variation of stress response, σ, internal friction, Q~(-1), and ultrasonic attenuation Aa, during cyclic deforamtion and correlation among them withdifferent slip orientation Al single crystals. Results indicate that they have obvious depen-dence upon slip orientation of Al single crystals. They are many differences for Q~(-1), △αand σbetween mono-slip and multi-slip Al single crystals. For the Al single crystals with sameorientation, the increase of σ corresponds with reduction of Q~(-1) and increase of △α, yet therequired number of cycles approaching the maximum of △α may be less than that of α up tomaximmu. And the Q~(-1) and σ may reach minimum and maximum, respectively, at samenumber of cycle.
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Received: 18 June 1992
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