再结晶退火温度对含Cu铁素体抗菌不锈钢耐蚀性的影响

doi:10.13251/j.issn.0254-6051.2020.05.010

金属热处理 ›› 2020, Vol. 45 ›› Issue (5): 51-55.DOI: 10.13251/j.issn.0254-6051.2020.05.010

再结晶退火温度对含Cu铁素体抗菌不锈钢耐蚀性的影响

刘逸飞, 陆慧, 孙绍恒, 赵爱民

北京科技大学钢铁共性技术协同创新中心, 北京 100083

收稿日期:2019-10-19 出版日期:2020-05-25 发布日期:2020-09-02
通讯作者: 赵爱民,教授、博士生导师,E-mail:aimin.zhao.@ustb.edu.cn
作者简介:刘逸飞(1993—),男,硕士研究生,主要研究方向为抗菌不锈钢,E-mail:easyfly919@163.com。
基金资助:
国家重点研发计划(2016YFB0300205)

Effect of recrystallization annealing temperature on corrosion resistance of copper-bearing ferritic antibacterial stainless steel

Liu Yifei, Lu Hui, Sun Shaoheng, Zhao Aimin

Collaborative Innovation Center of Steel Technology, University of Science and Technology Beijing, Beijing 100083, China

Received:2019-10-19 Online:2020-05-25 Published:2020-09-02

摘要/Abstract

摘要： 通过金相分析、FeCl₃点腐蚀试验、点蚀坑形貌观测、极化曲线测试等方法,研究了再结晶退火温度对含Cu铁素体抗菌不锈钢耐蚀性的影响。结果表明:在860～980 ℃范围内保温5 min,含Cu铁素体抗菌不锈钢再结晶程度逐渐提升,耐蚀性先增强后减弱,最佳再结晶退火温度为900 ℃。含Cu铁素体抗菌不锈钢在酸性FeCl₃溶液中点蚀坑呈开放式,随再结晶退火温度的升高,点蚀坑面积及深度减小,在980 ℃退火时其数量明显增多。

关键词: 抗菌不锈钢, 再结晶退火温度, 耐蚀性

Abstract: Effects of recrystallization annealing temperature on corrosion resistance of copper-bearing ferritic antibacterial stainless steel were studied by means of microstructure analysis, pitting corrosion test, pitting morphology observation and dynamic potential polarization curve test. The results show that the recrystallization degree of copper-containing ferritic antibacterial stainless steel is gradually increased after holding for 5 min at 860-980 ℃, and the corrosion resistance first increases and then weakens. The optimum recrystallization annealing temperature is 900 ℃. The pitting pits of the copper-containing ferritic antibacterial stainless steel are open-type in the acidic FeCl₃ solution, and the pitting pit area and the depth decrease with the increase of recrystallization annealing temperature. The number of pitting pits increases obviously after annealing at 980 ℃.

Key words: antibacterial stainless steel, recrystallization annealing temperature, corrosion resistance

中图分类号:

TG142

刘逸飞, 陆慧, 孙绍恒, 赵爱民. 再结晶退火温度对含Cu铁素体抗菌不锈钢耐蚀性的影响[J]. 金属热处理, 2020, 45(5): 51-55.

Liu Yifei, Lu Hui, Sun Shaoheng, Zhao Aimin. Effect of recrystallization annealing temperature on corrosion resistance of copper-bearing ferritic antibacterial stainless steel[J]. Heat Treatment of Metals, 2020, 45(5): 51-55.

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再结晶退火温度对含Cu铁素体抗菌不锈钢耐蚀性的影响

Effect of recrystallization annealing temperature on corrosion resistance of copper-bearing ferritic antibacterial stainless steel

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