Acta Metall Sin  1992, Vol. 28 Issue (8): 72-76    DOI:

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MACRO-AND MICROMORPHOLOGIES OF PITS AND INITIATION OF CORROSION FATIGUE CRACK

ZHOU Xiangyang; KE Wei (Laboratory of Corrosion Science; Institute of Corrosion and Protection of Metals; Academia Sinica; Shenyang)

ZHOU Xiangyang; KE Wei (Laboratory of Corrosion Science; Institute of Corrosion and Protection of Metals; Academia Sinica; Shenyang). MACRO-AND MICROMORPHOLOGIES OF PITS AND INITIATION OF CORROSION FATIGUE CRACK. Acta Metall Sin, 1992, 28(8): 72-76.

Abstract References Related Articles Recommended Metrics Download:  PDF(1405KB)  Export:  BibTeX | EndNote (RIS)       Abstract  Specimens of 1Cr_(18)Ni_9Ti stainless steel were pre-pitted and fatigue, some in 6%FeCl_3 solution and others in air, untill N>1×10~6 cyc. The geometric parameters, e.g. depth and diameter, of all pit were accurately measured by quantiative metallography. They were found to be effective on crack initiation. The pit-induced crack initiation is mainly due to mechanical factor for stainless steel, but quite different than carbon steel. After the specimens failed, the morphologies of pit bottoms were also examined by SEM for determining the initial sites of cracking. Thus, the mechanisms for pit-induced corrosion fatigue crack of these two typical steels were discussed. Key words:  pit      crack initiation      effective stress concentration factor      Received:  18 August 1992      Service E-mail this article Add to citation manager E-mail Alert RSS （） Articles by authors URL:  https://www.ams.org.cn/EN/     OR     https://www.ams.org.cn/EN/Y1992/V28/I8/72 1 Ebara R, Kai T, Inoue K. ASTM STP 462, 1977: 155 2 Turnball A. Rev Coat Corros, 1982, 5: 141 3 Congleton J, Craig Ⅰ, Olieh R, Parkins R. ASTM STP 801, 1983: 367 4 周向阳,柯伟,臧启山.金属学报,1990;26:B104 5 Frost N E.汪一麟,邵本述译.金属疲劳,北京:冶金工业出版社,1984:147 6 周向阳,柯伟.中国腐蚀与防护学报,1992 [1] ZHANG Qiliang, WANG Yuchao, LI Guangda, LI Xianjun, HUANG Yi, XU Yunze. Erosion-Corrosion Performance of EH36 Steel Under Sand Impacts of Different Particle Sizes[J]. 金属学报, 2023, 59(7): 893-904. [2] LU Yuhua, WANG Haizhou, LI Dongling, FU Rui, LI Fulin, SHI Hui. A Quantitative and Statistical Method of γ' Precipitates in Superalloy Based on the High-Throughput Field Emission Scanning Eelectron Microscope[J]. 金属学报, 2023, 59(7): 841-854. [3] LIANG Kai, YAO Zhihao, XIE Xishan, YAO Kaijun, DONG Jianxin. Correlation Between Microstructure and Properties of New Heat-Resistant Alloy SP2215[J]. 金属学报, 2023, 59(6): 797-811. [4] WANG Changsheng, FU Huadong, ZHANG Hongtao, XIE Jianxin. Effect of Cold-Rolling Deformation on Microstructure, Properties, and Precipitation Behavior of High-Performance Cu-Ni-Si Alloys[J]. 金属学报, 2023, 59(5): 585-598. [5] ZHU Yunpeng, QIN Jiayu, WANG Jinhui, MA Hongbin, JIN Peipeng, LI Peijie. Microstructure and Properties of AZ61 Ultra-Fine Grained Magnesium Alloy Prepared by Mechanical Milling and Powder Metallurgy Processing[J]. 金属学报, 2023, 59(2): 257-266. [6] CHANG Litao. Corrosion and Stress Corrosion Crack Initiation in the Machined Surfaces of Austenitic Stainless Steels in Pressurized Water Reactor Primary Water： Research Progress and Perspective[J]. 金属学报, 2023, 59(2): 191-204. [7] XIA Dahai, JI Yuanyuan, MAO Yingchang, DENG Chengman, ZHU Yu, HU Wenbin. Localized Corrosion Mechanism of 2024 Aluminum Alloy in a Simulated Dynamic Seawater/Air Interface[J]. 金属学报, 2023, 59(2): 297-308. [8] CHEN Kaixuan, LI Zongxuan, WANG Zidong, Demange Gilles, CHEN Xiaohua, ZHANG Jiawei, WU Xuehua, Zapolsky Helena. Morphological Evolution of Fe-Rich Precipitates in a Cu-2.0Fe Alloy During Isothermal Treatment[J]. 金属学报, 2023, 59(12): 1665-1674. [9] MA Guonan, ZHU Shize, WANG Dong, XIAO Bolv, MA Zongyi. Aging Behaviors and Mechanical Properties of SiC/Al-Zn-Mg-Cu Composites[J]. 金属学报, 2023, 59(12): 1655-1664. [10] RUI Xiang, LI Yanfen, ZHANG Jiarong, WANG Qitao, YAN Wei, SHAN Yiyin. Microstructure and Mechanical Properties of a Novel Designed 9Cr-ODS Steel Synergically Strengthened by Nano Precipitates[J]. 金属学报, 2023, 59(12): 1590-1602. [11] GONG Xiangpeng, WU Cuilan, LUO Shifang, SHEN Ruohan, YAN Jun. Effect of Natural Aging on Artificial Aging of an Al-2.95Cu-1.55Li-0.57Mg-0.18Zr Alloy at 160oC[J]. 金属学报, 2023, 59(11): 1428-1438. [12] LI Xiaolin, LIU Linxi, LI Yating, YANG Jiawei, DENG Xiangtao, WANG Haifeng. Mechanical Properties and Creep Behavior of MX-Type Precipitates Strengthened Heat Resistant Martensite Steel[J]. 金属学报, 2022, 58(9): 1199-1207. [13] LIU Xuxi, LIU Wenbo, LI Boyan, HE Xinfu, YANG Zhaoxi, YUN Di. Calculation of Critical Nucleus Size and Minimum Energy Path of Cu-Riched Precipitates During Radiation in Fe-Cu Alloy Using String Method[J]. 金属学报, 2022, 58(7): 943-955. [14] SUN Yangting, LI Yiwei, WU Wenbo, JIANG Yiming, LI Jin. Effect of Inclusions on Pitting Corrosion of C70S6 Non-Quenched and Tempered Steel Doped with Ca and Mg[J]. 金属学报, 2022, 58(7): 895-904. [15] GAO Chuan, DENG Yunlai, WANG Fengquan, GUO Xiaobin. Effect of Creep Aging on Mechanical Properties of Under-Aged 7075 Aluminum Alloy[J]. 金属学报, 2022, 58(6): 746-759. No Suggested Reading articles found! Viewed Full text Abstract Cited   Shared      Discussed