金属学报  1981, Vol. 17 Issue (1): 18-120

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应力腐蚀开裂过程中的表面形变

张百伟;杜家驹

中国科学院金属研究所;中国科学院金属研究所

SURFACE DEFORMATION IN THE COURSE OF STRESS CORROSION CRACKING

Zhang Baiwei and Du Jiaju (Institute of Metal Research; Academia Sinica)

张百伟;杜家驹. 应力腐蚀开裂过程中的表面形变[J]. 金属学报, 1981, 17(1): 18-120.
, . SURFACE DEFORMATION IN THE COURSE OF STRESS CORROSION CRACKING[J]. Acta Metall Sin, 1981, 17(1): 18-120.

摘要 参考文献 相关文章 Metrics 全文: PDF(1146 KB)   摘要: <正> 应力腐蚀开裂是一种比较复杂的现象,不仅与裂纹尖端的力学状态有关,而且与裂纹尖端附近的腐蚀介质条件及受应力腐蚀的材料的性质和状态有关。按照断裂力学的观点,即使对于厚度满足平面应变条件的试样,在受载后,试样表面层也并不处于平面应变状态,而是处于平面应力状态.对于这种试样进行应力腐蚀试验,单从力学因素来说,裂纹应优先在试样厚度中心部位(处于三轴应力状态)处扩展,在试样表面层,由 Abstract：Stress corrosion tests were conducted with a cantilever bend test machine. An aqueous solution of 3.5% NaCl was used as a corrodent. It was observed that the shape of the crack front is closely related to the surface deformation on the specimen surface perpendicular to the stress corrosion crack. This experiment shows that for ultra-high strength steels the change of the size of the deformation zone observed on the specimen surface can be hardly explained by the change of the size of the plastic zone at the tip of crack. Such an observation may be correlated with the stress state of the surface layer. 收稿日期: 1981-01-18      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 张百伟 杜家驹 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1981/V17/I1/18 No related articles found! Viewed Full text Abstract Cited   Shared      Discussed