金属学报  1986, Vol. 22 Issue (2): 81-86

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Cr12Ni2WMoV钢的疲劳条纹与宏观裂纹扩展

陈传尧;戴蜀娟;高大兴

华中工学院;华中工学院;华中工学院

FATIGUE STRIATION AND MACROCRACK PROPAGATION IN Cr12Ni2WMoV STEEL

CHEN Chuanyao; DAI Shujuan; GAO Daxing (Huazhong University of Science and Technology; Wuhan)

陈传尧;戴蜀娟;高大兴. Cr12Ni2WMoV钢的疲劳条纹与宏观裂纹扩展[J]. 金属学报, 1986, 22(2): 81-86.
, , . FATIGUE STRIATION AND MACROCRACK PROPAGATION IN Cr12Ni2WMoV STEEL[J]. Acta Metall Sin, 1986, 22(2): 81-86.

摘要 参考文献 相关文章 Metrics 全文: PDF(1271 KB)   摘要: 在研究Cr12Ni2WMoV钢疲劳裂纹扩展的基础上,本文进一步利用高倍电镜进行了断口微观分析,得到了可用于定量研究的疲劳条纹数据。比较详细地讨论了宏观疲劳裂纹扩展速率dα/dN与微观条纹间距α之间的关系,提出了解释观察现象的若干假设。依据上述假设,引入面积修正函数F后,可将dα/dN-α关系表达为 dα/dN=F(△K,R)·α(△K) 且指出F具有下述形式: F(△K,R)=A(△K)~m/[(1一R)K_c-△K] 最后,给出了Cr12Ni2WMoV钢锻件的F值。 Abstract：TEM microfractography of the fatigue striation formation was further analyzed resulting from investigation of the fatigue crack propagation in Cr12Ni2WMoV steel, and the data for quantitative evaluation of striation interval was developed. The relationship between the rate of fatigue macrocrack propagation, da/dN, and microstriation interval, α, has been discussed. On the assumption to explain the phenomena observed and by interoducing an areacorrecting function: F(△K,R)=A(△K)~m/(1-R)K_c-△K the relation of (dα/dN)vs α may be expressed as dα/dN=F(△K,R)α(△K) The value F for Cr12Ni2WMoV steel is given. 收稿日期: 1986-02-18      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 陈传尧 戴蜀娟 高大兴 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1986/V22/I2/81 1 Crooker, T.W. et al., Am. soc. Test. Mater., Spec. Tech. Publ., 600, (1976) , p. 205． 2 Hertzberg, R.W., Deformation and Fracture Mechanics of Engineering Materials, Wiley, New York, 1976, p. 533． 3 陈传尧;高大兴,第二届全国疲劳学术会议论文集(中册);中国力学、航空、机械学会1984,№303． 4 Forman, R.G., et al., Trans. ASME, Ser. D,J. Basic Eng., 89 (1967) , 459． 5 Laird, C., Am. Soc. Test. Mater., Spec. Tech. Publ., 415 (1967) , p. 131 No related articles found! Viewed Full text Abstract Cited   Shared      Discussed