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金属学报  1987, Vol. 23 Issue (5): 434-436    
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γ强化镍基合金蠕变摩擦应力的测定
阳志安;肖耀天;师昌绪
中国科学院金属研究所;中国科学院金属研究所;中国科学院金属研究所
CREEP FRICTION STRESS OF γ' STRENGTHENED Ni-BASE SUPERALLOYS
by YANG Zhi'an; XIAO Yaotian; SHI Changxu(C. H. Shih) (Institute of Metal Research; Academia Sinica; Shenyang)(Manuscript received 10 Octorber; 1985; revised manuscript 22 Appril; 1986)
引用本文:

阳志安;肖耀天;师昌绪. γ强化镍基合金蠕变摩擦应力的测定[J]. 金属学报, 1987, 23(5): 434-436.
, , . CREEP FRICTION STRESS OF γ' STRENGTHENED Ni-BASE SUPERALLOYS[J]. Acta Metall Sin, 1987, 23(5): 434-436.

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摘要: <正> 一、蠕变摩擦应力 在高温和中等应力下,金属和合金的稳态蠕变速率ε_s符合指数律,即 ε_s=Aσ~nexp(-Q_c/RT)(1)其中,A是材料常数,σ是外应力,n是外应力指数,Q_c是蠕变激活能.但是,复杂合金的外应力指数和表观蠕变激活能比纯金属的高得
Abstract:The creep friction stress of γ' strengthened superalloys containing 5 and 10 wt-% Co has been measured by means of stress dip test on the creep machine modified by the authors. The results analized with either asymptote or McLean's method show that Co will linearly increase the friction stress value for Ni-base superalloys.
收稿日期: 1987-05-18     
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