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

doi:10.13251/j.issn.0254-6051.2021.05.029

Abstract

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

CLC Number:

TG142.71

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.

References

[1]胡建军, 陈泽, 杨俭, 等. Si含量对新型FM钢时效处理后腐蚀性能的影响[J]. 热加工工艺, 2021, 50(4): 63-67.
Hu Jianjun, Chen Ze, Yang Jian, et al. Effect of Si content on corrosion property of new ferrite/martensite steel after aging treatment[J]. Hot Working Technology, 2021, 50(4): 63-67.
[2]王爽. 新型奥氏体不锈钢微观组织及电化学腐蚀性能研究[D]. 秦皇岛: 燕山大学, 2020.
Wang Shuang. The investigation on microstructure and electrochemical corrosion performance of new austenitic stainless steels[D]. Qinhuangdao: Yanshan University, 2020.
[3]Schino A D, Kenny J M. Effect of grain size on the corrosion resistance of a high nitrogen-low nickel austenitic stainless steel[J]. Journal of Materials Science Letters, 2002, 21(24): 1969-1971.
[4]王凤平, 康万利, 敬和民. 腐蚀电化学原理、方法及应用[M]. 北京: 化学工业出版社, 2008.
[5]赵志浩, 王旭, 吴明. 热处理对05Cr17Ni4Cu4Nb钢耐蚀性的影响[J]. 金属热处理, 2018, 43(12): 109-114.
Zhao Zhihao, Wang Xu, Wu Ming. Effect of heat treatment on corrosion resistance of 05Cr17Ni4Cu4Nb steel[J]. Heat Treatment of Metals, 2018, 43(12): 109-114.
[6]李华伟. 热处理工艺对0Cr18Ni10Ti不锈钢组织和性能的影响[D]. 成都: 成都理工大学, 2015.
Li Huawei. Effects of heat treatment process on microstructure and properties of 0Cr18Ni10Ti stainless steel[D]. Chengdu: Chengdu University of Technology, 2015.
[7]孙晓霞, 马丁, 李煦, 等. 固溶处理对ZG40Cr25Ni20Si2耐热钢力学性能的影响[J]. 兵器装备工程学报, 2021, 42(2): 211-215.
Sun Xiaoxia, Ma Ding, Li Xu, et al. Effect of solution treatment on mechanical properties of ZG40Cr25Ni20Si2 heat-resistant steel[J]. Journal of Ordnance Equipment Engineering, 2021, 42(2): 211-215.
[8]刘觐, 陆德平, 范众维, 等. 第二相析出对Cr-Ni系粉末冶金不锈钢耐蚀性的影响[J]. 金属热处理, 2018, 43(11): 44-48.
Liu Jin, Lu Deping, Fan Zhongwei, et al. Effect of second phase precipitation on corrosion resistance of powder metallurgy Cr-Ni stainless steel[J]. Heat Treatment of Metals, 2018, 43(11): 44-48.
[9]孙海霞, 邢健, 薛晶晶, 等. 固溶温度对AISI 302奥氏体不锈钢显微组织及晶间腐蚀性能的影响[J]. 材料保护, 2019, 52(6): 157-160.
Sun Haixia, Xing Jian, Xue Jingjing, et al. Effect of solution temperatures on the microstructures and intergranular corrosion properties of AISI 302 austenitic stainless steel[J]. Materials Protection, 2019, 52(6): 157-160.
[10]王斌, 刘正东, 程世长, 等. 固溶温度对NF709奥氏体耐热钢微观组织和力学性能的影响[J]. 金属热处理, 2013, 38(3): 77-81.
Wang Bin, Liu Zhengdong, Cheng Shichang, et al. Effects of solution temperature on microstructure and mechanical properties of NF709 austenite heat resistant steel[J]. Heat Treatment of Metals, 2013, 38(3): 77-81.
[11]陈晓秋, 王智勇, 尚峰, 等. 固溶处理对06Cr23Mn22MoN高氮无镍奥氏体不锈钢耐腐蚀性能的影响[J]. 材料热处理学报, 2019, 40(9): 88-93.
Chen Xiaoqiu, Wang Zhiyong, Shang Feng, et al. Effect of solution treatment on corrosion resistance of 06Cr23Mn22MoN high nitrogen nickel-free austenitic stainless steel[J]. Transactions of Materials and Heat Treatment, 2019, 40(9): 88-93.
[12]彭成, 黄福祥, 梁爽, 等. 固溶处理温度对高硅锰铬镍奥氏体不锈钢晶间腐蚀的影响[J]. 金属热处理, 2019, 44(6): 128-132.
Peng Cheng, Huang Fuxiang, Liang Shuang, et al. Effect of solution treatment temperature on intergranular corrosion of high silicon manganese chromium-nickel austinitic stainless steel[J]. Heat Treatment of Metals, 2019, 44(6): 128-132.
[13]朱日彰, 卢亚轩. 耐热钢和高温合金[M]. 北京: 化学工业出版社, 1996.
[14]赵洪友. 316L不锈钢波纹管腐蚀失效分析[J]. 金属热处理, 2015, 40(7): 183-186.
Zhao Hongyou.Corrosion failure analysis of 316L stainless steel corrugated pipe[J]. Heat Treatment of Metals, 2015, 40(7): 183-186.
[15]李雷. 奥氏体不锈钢扩散连接晶间腐蚀性能研究[D]. 兰州: 兰州理工大学, 2011.
Li Lei. Austenitic stainless diffusion bonding intergranular corrosion[D]. Lanzhou: Lanzhou University of Technology, 2011.
[16]张志伟, 刘素芬, 李兆杰, 等. 304奥氏体不锈钢腐蚀失效原因分析及组织表征[J]. 金属热处理, 2019, 44(S1): 96-102.
Zhang Zhiwei, Liu Sufen, Li Zhaojie, et al. Cause analysis and microstructure characterization of corrosion failure of 304 austenitic stainless steel[J]. Heat Treatment of Metals, 2019, 44(S1): 96-102.