金属学报  1985, Vol. 21 Issue (3): 36-44

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氢对纯镍多晶体循环形变行为的影响

侯耀永;王崇民;王春波

兰州大学;兰州大学;兰州大学

INFLUENCE OF HYDROGEN ON CYCLIC DEFORMATION BEHAVIOUR OF PURE Ni

HOU Yaoyong;WANG Chongmin;WANG Chunbo Lanzhou University

侯耀永;王崇民;王春波. 氢对纯镍多晶体循环形变行为的影响[J]. 金属学报, 1985, 21(3): 36-44.
, , . INFLUENCE OF HYDROGEN ON CYCLIC DEFORMATION BEHAVIOUR OF PURE Ni[J]. Acta Metall Sin, 1985, 21(3): 36-44.

摘要 参考文献 相关文章 Metrics 全文: PDF(1865 KB)   摘要: 对充分退火的、晶粒尺寸约30—40μm的工业纯镍试样,分别在未充氢、电解充氢和充氢-驱氢情况下进行了恒应变幅对称拉-压低循环疲劳试验,应变幅范围从2.7×10~(-3)到4.9×10~(-3).记录了一定循环周数后的塑性滞后回线,由此测量了循环应力峰值σ_p,摩擦应力σ_F和反向应力σ_B实验表明,该镍试样充氢后,除疲劳至断裂的总寿命有明显降低外,循环硬化速率、达到饱和时的应力峰值σ_p和摩擦应力σ_F均有降低,并随应变幅的增加越趋明显,而反向应力σ_B则不因充氢而有明显变化.结合扫描电镜观察的结果进行了分析讨论. Abstract：Symmetrical push-pull low-cyclic fatigues with constant strain amplitude,ranged from 2.7×10~(-3)to 4.9×10~(-3),were performed on well-annealed commercialpure(99.98%)Ni polycrystalline specimens with grain size about 30-40 μm underhydrogen-charged,hydrogen-free and hydrogen charged-dehydrized respectively.The cyclic peak stresses σ_P,friction stresses σ_F and back stresses σ_B were deter-mined by the fatigue hysteresis loops.It was shown that the σ_P at saturation,theσ_F and the hardening rate as well as the total fatigue life decreased remarkably withincreasing of strain amplitude but σ_B changed no more under hydrogen-charged.The influence of hydrogen on the cyclic deformation behaviour of pure Ni hasalso been discussed in combination with the SEM observation. 收稿日期: 1985-03-18      服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 侯耀永 王崇民 王春波 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1985/V21/I3/36 1 Kuhlmann-Wilsdorf,D.;Laird,C.,Mater.Sci.Eng.,37(1979) ,111． 2 Lee,J.-K.;Laird,C.,Mater.Sci.Eng.,54(1982) ,53． 3 Boniszewski,T.;Smith,G.C.,Acta Metall.,11(1963) ,165． 4 Eastman,J.;Matsumoto,T.;Narita,N.;Heubaum,F.;Birnbaum,H.K.,Hydrogen Effects in Metals,Proc.of the 3rd Int.Conf.,Wyoming,1981,Eds.Bernstein,I.M.;Thompson,A.W.,AIME,New York,1981,p.397． 5 Matsui,H.;Kimura,H.;Moriya,S.,Mater.Sci.Eng.,40(1979) ,207． 6 Essmann,U.;G(o|¨)esele,U.;Mughrabi,H.,Philos.Mag.,A44(1981) ,405． 7 Polak,J.,Czech.J.Phys.,B23(1973) ,322． 8 Johnson,H.H.;Lin,R.W.,Hydrogcn Effects in Metals,Proc.of the 3rd Int.Conf.,Wyoming,1981,Eds.Bernstein,I.M.;Thompson A.W.,AIME,New York,1981,p.3． 9 Tien,J.K.;Nair,S.V.;Jensen,R.R.,ibid.,p.37．Q No related articles found! Viewed Full text Abstract Cited   Shared      Discussed