热处理工艺对17-4PH钢耐海水腐蚀性能的影响

中国腐蚀与防护学报

2011, Vol. 31

Issue (6): 473-477

研究报告

本期目录 | 过刊浏览

热处理工艺对17-4PH钢耐海水腐蚀性能的影响

赵义^1,2,王福¹

1. 东北大学材料与冶金学院沈阳 110004
2. 中冶京诚工程技术有限公司北京 100176

EFFECT OF HEAT TREATMENT PROCESSES ON SEAWATER CORROSION RESISTANCE PROPERTY OF 17-4PH STEEL

ZHAO Yi^1,2, WANG Fu¹

1. School of Material and Metallurgy，Northeastern University, Shenyang 110004
2. Capital Engineering & Research Incorporation Limited, Beijing 100176

全文: PDF(2571 KB)

摘要: 运用极化曲线、循环极化曲线等电化学方法研究了17-4PH钢经不同工艺热处理后的耐海水腐蚀性能，并对腐蚀形貌和显微组织进行了观察和分析。结果表明：该不锈钢经固溶+调整处理后，在520℃时效4 h时可获最佳的耐海水腐蚀性能，且综合力学性能优良。在一定的温度和时间区间内，随着时效温度的升高及时效时间的延长，马氏体板条呈逐步细化的趋势且晶间析出物逐渐增多。在不同温度及时间的时效处理过程中，富Cu沉淀相的析出、长大及逆转变奥氏体的产生是导致其耐蚀性产生差异的主要原因。

关键词 ：热处理工艺, 17-4PH钢, 耐海水腐蚀性能, 时效温度\铜析出相

Abstract：The corrosion resistance property in artificial seawater of 17-4PH steel after different heat treatment processes was investigated by electrochemical tests, and the corrosion morphology and microstructure were also analyzed. The results indicated that after solution and intermediate treatments the steel showed the best corrosion resistance property and excellent mechanical properties while aging at 520℃ for 4 hours. The microstructure became finer and the precipitation in grain boundaries increased with the increase of aging temperature and time in a certain range. The reverted austenite and copper precipitates that separated out while aging treatment were the major determinants of the corrosion resistance property of 17-4PH steel.

Key words： heat treatment processes 17-4PH steel seawater corrosion resistance property aging temperature copper precipitates

收稿日期: 2010-10-28

ZTFLH:

TG172.5

基金资助:

航天部科技攻关项目（KDD-17）资助

通讯作者: 赵义 E-mail: zhaoyi@ceri.com.cn

Corresponding author: ZHAO Yi E-mail: zhaoyi@ceri.com.cn

作者简介: 赵义，男，1964年生，博士生，研究员级高级工程师，研究方向为材料学

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引用本文:

赵义,王福. 热处理工艺对17-4PH钢耐海水腐蚀性能的影响[J]. 中国腐蚀与防护学报, 2011, 31(6): 473-477.
YI -ZHAO, YU Fu. EFFECT OF HEAT TREATMENT PROCESSES ON SEAWATER CORROSION RESISTANCE PROPERTY OF 17-4PH STEEL. J Chin Soc Corr Pro, 2011, 31(6): 473-477.

链接本文:

https://www.jcscp.org/CN/ 或 https://www.jcscp.org/CN/Y2011/V31/I6/473

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