固溶处理对ZG40Cr25Ni20Si2耐热钢耐蚀性能的影响

doi:10.13251/j.issn.0254-6051.2021.05.029

金属热处理 ›› 2021, Vol. 46 ›› Issue (5): 175-179.DOI: 10.13251/j.issn.0254-6051.2021.05.029

固溶处理对ZG40Cr25Ni20Si2耐热钢耐蚀性能的影响

杨亚杰¹, 常远², 郭胤³, 周玉宁², 林冰涛¹, 杨三龙¹, 孙晓霞⁴

1.安泰科技股份有限公司, 北京 100094;
2.北京航天长征飞行器研究所, 北京 100076;
3.四川航天系统工程研究所, 四川成都 610100;
4.中国劳动关系学院, 北京 100048

收稿日期:2020-10-19 出版日期:2021-05-25 发布日期:2021-07-21
通讯作者: 孙晓霞,讲师,硕士,E-mail:sunxxciir@163.com
作者简介:杨亚杰(1984—),男,工程师,硕士,主要研究方向为难熔金属及其复合材料,E-mail:yangyajie@atmcn.com。

Effect of solution treatment on corrosion resistance of ZG40Cr25Ni20Si2 heat-resistant steel

Yang Yajie¹, Chang Yuan², Guo Yin³, Zhou Yuning², Lin Bingtao¹, Yang Sanlong¹, Sun Xiaoxia⁴

1. ATTL Advanced Materials Co., Ltd., Beijing 100094, China;
2. Beijing Institute of Space Long March Vehicle, Beijing 100076, China;
3. Sichuan Academy of Aerospace Technology, Chengdu Sichuan 610100, China;
4. China University of Labor Relations, Beijing 100048, China

Received:2020-10-19 Online:2021-05-25 Published:2021-07-21

摘要/Abstract

摘要： 采用动电位极化曲线、电化学阻抗谱、中性盐雾试验、光电子能谱研究了固溶处理(固溶温度1080 ℃,保温时间90 min)对ZG40Cr25Ni20Si2不锈钢耐腐蚀性能的影响。结果表明:在此固溶处理参数下,处理后的试样腐蚀电位下降,腐蚀电流密度升高,容抗弧尺寸明显低于铸态,耐腐蚀性能降低。中性盐雾试验中在96 h内固溶态和铸态试样均未出现明显的腐蚀,144 h后固溶处理态试样的腐蚀质量损失稍大于铸态,更容易发生腐蚀。

关键词: 耐热钢, 热处理, 耐蚀性能

Abstract: Effect of solution treatment(solution temperature of 1080 ℃, holding time of 90 min) on corrosion resistance of the ZG40Cr25Ni20Si2 stainless steel was studied by means of potentiodynamic polarization, electrochemical impedance spectroscopy, neutral salt spray test and photoelectron spectroscopy. The results show that under this solution treatment parameter, after the solution treatment, the corrosion potential of the steel decreases, the corrosion current increases, the capacitance arc size is obviously lower than that of the as-cast one, and the corrosion resistance decreases. In neutral salt spray test, there is no obvious corrosion morphology in the as-cast and solution treated specimens within 96 h. After 144 h, the mass loss of the solution treated specimens is slightly larger than that of the as-cast one, and corrosion is more likely to occur.

Key words: heat resistant steel, heat treatment, corrosion resistance

中图分类号:

TG142.71

杨亚杰, 常远, 郭胤, 周玉宁, 林冰涛, 杨三龙, 孙晓霞. 固溶处理对ZG40Cr25Ni20Si2耐热钢耐蚀性能的影响[J]. 金属热处理, 2021, 46(5): 175-179.

Yang Yajie, Chang Yuan, Guo Yin, Zhou Yuning, Lin Bingtao, Yang Sanlong, Sun Xiaoxia. Effect of solution treatment on corrosion resistance of ZG40Cr25Ni20Si2 heat-resistant steel[J]. Heat Treatment of Metals, 2021, 46(5): 175-179.

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固溶处理对ZG40Cr25Ni20Si2耐热钢耐蚀性能的影响

Effect of solution treatment on corrosion resistance of ZG40Cr25Ni20Si2 heat-resistant steel

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