金属学报  1988, Vol. 24 Issue (6): 471-475

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海洋用结构钢在NaCl溶液中疲劳短裂纹的扩展

裴鸿勋;杨京俊;柯伟

沈阳中国科学院金属腐蚀与防护研究所;中国科学院金属腐蚀与防护研究所;中国科学院金属腐蚀与防护研究所

GROWTH OF SHORT CRACKS OF A537CL1 STEEL UNDER FATIGUE LOADING IN 3.5% NaCl SOLUTICN

PEI Hongxun;YANG Jingjun;KE Wei Institute of Corrosion and Protection of Metals; Academia Sinica; Shenyang

裴鸿勋;杨京俊;柯伟. 海洋用结构钢在NaCl溶液中疲劳短裂纹的扩展[J]. 金属学报, 1988, 24(6): 471-475.
, , . GROWTH OF SHORT CRACKS OF A537CL1 STEEL UNDER FATIGUE LOADING IN 3.5% NaCl SOLUTICN[J]. Acta Metall Sin, 1988, 24(6): 471-475.

摘要 参考文献 相关文章 Metrics 全文: PDF(422 KB)   摘要: 本文用海洋平台结构钢A537CL1的单边裂纹样品,在空气和3.5％ NaCl水溶液中进行了腐蚀疲劳短裂纹扩展实验,比较不同裂纹长度及环境介质对疲劳短裂纹扩展行为的影响。结果表明,在门槛值附近,对于相同的应力强度因子范围,短裂纹扩展速率比长裂纹扩展快。短裂纹扩展的门槛值随裂纹长度的减小而减小。与空气介质相比较,盐水对疲劳短裂纹扩展加速的程度远大于长裂纹。 关键词 ： 疲劳短裂纹,  结构钢A537,  环境介质,  应力强度门槛值     Abstract：The effects of environmental media, both in atmosphere and in 3.5%NaCl aqueous solution, on the growth of short cracks in comparison with thelong ones have been investigated under fatigue loading on the specimens of single-edge crack about 0.05--0.15 mm for A537CL 1 steel. The growth rate of short cracksis faster than those of long ones around the threshold stress intensity. The thresh-old stress intensity for short crack growth decreases with decreasing crack length.The acceleration effect of the salt water, as compared with atmosphere environ-ment, on the growth of short cracks under fatigue is much greater than that on thegrowth of long cracks. Key words： Short fatigue crack    offshore platform steel    environment medium    threshold stress intensity 收稿日期: 1988-06-18      基金资助:中国科学院重大项目 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 裴鸿勋 杨京俊 柯伟 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1988/V24/I6/471 1 Suresh S, Ritchie R O. Int Met Rev, 1984; 29: 445 2 Yu Weicheng, Yuan Jincai, Ke Wei, Shi Changxu (C H Shih). In: Fong J J, Wei R P eds., Proc of Fundamental Questions and Critical Experiments in Fatigue, Dallas, 1984, 3 Lankford J. Fatigue Eng Mater Struct, 1983; 6: 15 4 Taylor D, Knott J F. Fatigue Eng Mater Struct, 1981; 4: 147 5 ElHaddad M H, Topper T H, Smith K N. Eng Fract Mech, 1979; 11: 573 6 Tanaka K, Nakai Y, Yamashita M. Int J Fract, 1981; 17: 519 7 James M R, Morris W L. Metall Trans, 1983; 14A: 153 8 Minakawa K, Newman J C Jr., McEvily A J. Fatigue Eng Mater Struct, 1983; 6: 359 9 Duggan T V. In: Backlund J, Blom A F, Beevers C J eds., Fatigue Threshold, Vol. Ⅱ, Warley, UK: Engineering Materials Advisory Services Ltd, 1982: 809 10 Zaiken E, Ritchie R O. Scr Metall, 1984; 18: 847 11 McCarver J F, Ritchie R O. Mater Sci Eng, 1982; 55: 63 12 柯伟.金属断裂失效分析,中科院金属研究所,1985:139 13 Gangloff R P. In: Beevers C J ed, Advances In Crack Length Measurement, Warley, UK: Engineering Materials Advisory Services Ltd, 1983: 175 [1] 张慧, 杜艳霞, 李伟, 路民旭. 不同环境介质中X70钢的交流腐蚀行为及腐蚀产物膜层分析[J]. 金属学报, 2017, 53(8): 975-982. [2] 钱桂安 洪友士. 环境介质对40Cr结构钢高周和超高周疲劳行为的影响[J]. 金属学报, 2009, 45(11): 1356-1363. [3] 赵永翔; 高庆 . 不锈钢管道焊缝金属疲劳短裂纹行为的实验研究Ⅱ.裂纹萌生、扩展与交互作用[J]. 金属学报, 2000, 36(9): 937-943 . [4] 崔振旗;徐可为;胡奈赛. 残余压应力场中疲劳短裂纹扩展模型及实验[J]. 金属学报, 1994, 30(2): 65-69. [5] 陈铮. 8090Al-Li合金疲劳短裂纹门槛值的研究[J]. 金属学报, 1990, 26(5): 62-65. [6] 王政富;柯伟;朱祖铭. 腐蚀疲劳过程的声发射[J]. 金属学报, 1990, 26(1): 102-106. [7] 洪友士;吕永华;郑哲敏. 一种等应力试样中的疲劳短裂纹行为[J]. 金属学报, 1990, 26(1): 46-52. Viewed Full text Abstract Cited   Shared      Discussed