轧制AZ31B镁合金在空气和NaCl溶液中的疲劳行为

中国腐蚀与防护学报

2009, Vol. 29

Issue (2): 132-136

研究报告

本期目录 | 过刊浏览

轧制AZ31B镁合金在空气和NaCl溶液中的疲劳行为

周华茂;王俭秋;张波;韩恩厚;臧启山

中国科学院金属研究所~金属腐蚀与防护国家重点实验室沈阳 110016

FATIGUE BEHAVIOR OF ROLLED AZ31B MAGNESIUM ALLOY IN AIR AND NaCl SOLUTION

ZHOU Huamao; WANG Jianqiu; ZHANG Bo; HAN Enhou; ZANG Qishan

State Key Laboratory for Corrosion and Protection;Institute of Metal Research;Chinese Academy of Sciences; Shenyang 110016

全文: PDF(2597 KB)

摘要:

研究了轧制AZ31B镁合金在空气和NaCl溶液中的疲劳裂纹萌生情况。结果表明，在空气中，第二相开裂导致裂纹萌生；而在NaCl溶液中，点蚀或丝状腐蚀造成的表面损伤均可成为疲劳裂纹源。 NaCl溶液极大地降低了轧制AZ31B镁合金的疲劳寿命。溶液中Cl^-含量越高，合金的疲劳寿命越短。

关键词 ：裂纹萌生, 第二相, 蚀坑, 镁合金

Abstract：

Fatigue crack initiation of rolled AZ31B magnesium alloy in air and NaCl solution was investigated. In air, the cracked second phases were responsible for crack initiation. While in NaCl solution, crack initiated from surface damage which was produced by pit corrosion or filiform corrosion. Increasing Cl^- concentration, the crack initiation and propagation in NaCl solutions were enhanced and the fatigue lifetime was decreased.

Key words： crack initiation second phase corrosion pit magnesium alloy

收稿日期: 2007-05-29

ZTFLH:

TG146

基金资助:

中国科学院百人计划项目,
国家重点基础研究发展规划项目(2007CB613705)

通讯作者: 王俭秋 E-mail: jiqwang@imr.ac.cn

Corresponding author: WANG Jianqiu E-mail: jiqwang@imr.ac.cn

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引用本文:

周华茂王俭秋张波韩恩厚臧启山. 轧制AZ31B镁合金在空气和NaCl溶液中的疲劳行为[J]. 中国腐蚀与防护学报, 2009, 29(2): 132-136.
ZHOU Hua-Mao. FATIGUE BEHAVIOR OF ROLLED AZ31B MAGNESIUM ALLOY IN AIR AND NaCl SOLUTION. J Chin Soc Corr Pro, 2009, 29(2): 132-136.

链接本文:

https://www.jcscp.org/CN/ 或 https://www.jcscp.org/CN/Y2009/V29/I2/132

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