1 T磁场下回火工艺对25CrMo48V钢耐蚀性能的影响

doi:10.13251/j.issn.0254-6051.2023.09.018

金属热处理 ›› 2023, Vol. 48 ›› Issue (9): 106-109.DOI: 10.13251/j.issn.0254-6051.2023.09.018

1 T磁场下回火工艺对25CrMo48V钢耐蚀性能的影响

杨赛玄^1,2, 杨晓斌^1,2, 陆盼盼³, 赵倩⁴, 董治中², 董纪¹

1.天津中德应用技术大学机械工程学院, 天津 300350;
2.天津理工大学材料科学与工程学院, 天津 300384;
3.中国人民解放军63856, 吉林白城 137000;
4.天津商业大学机械工程学院, 天津 300134

收稿日期:2023-05-01 修回日期:2023-06-29 出版日期:2023-09-25 发布日期:2023-10-25
通讯作者: 董纪,讲师,博士,E-mail:dongji005@163.com
作者简介:杨赛玄(2000—),女,硕士研究生,主要研究方向为金属材料热处理,E-mail:yangsaixuan03@163.com。
基金资助:
国家自然科学基金青年项目(52004181, 52101157);天津市津南区科技计划(20220110);天津市教委科研计划(2020KJ084)

Effect of tempering process under 1 T magnetic field on corrosion resistance of 25CrMo48V steel

Yang Saixuan^1,2, Yang Xiaobin^1,2, Lu Panpan³, Zhao Qian⁴, Dong Zhizhong², Dong Ji¹

1. School of Mechanical Engineering, Tianjin Sino-German University of Applied Sciences, Tianjin 300350, China;
2. School of Material Science and Engineering, Tianjin University of Technology, Tianjin 300384, China;
3. Unit 63856 of the Chinese People's Liberation Army, Baicheng Jilin 137000, China;
4. School of Mechanical Engineering, Tianjin University of Commerce, Tianjin 300134, China

Received:2023-05-01 Revised:2023-06-29 Online:2023-09-25 Published:2023-10-25

摘要/Abstract

摘要： 为探究在1 T磁场下不同回火工艺对25CrMo48V超高强度钢耐蚀性能的影响,将试验用钢1000 ℃奥氏体化30 min后放置于1 T强磁场高温箱式炉中进行600 ℃分别保温10、30、60、180、240 min的回火处理,和200、300、400、500、600 ℃保温60 min的回火处理。对热处理后的试样使用光学显微镜、电化学阻抗谱和动电位极化曲线观察分析在相同磁场下,不同回火参数对试样在3.5%NaCl溶液中腐蚀性能的影响。结果表明,所有试样的阻抗谱曲线形状相似,表明回火后试样的电化学机理没有改变,容抗弧半径越大,耐蚀性越好。400 ℃回火60 min的试样自腐蚀电流密度最小。

关键词: 25CrMo48V钢, 回火工艺, 磁场热处理, 电化学性能, 耐蚀性

Abstract: 25CrMo48V ultra-high strength steel was quenched at 1000 ℃ for 30 min, then placed in a high temperature box furnace under 1 T magnetic field to carry out tempering at 600 ℃ for 0, 10, 30, 180, and 240 min, and tempering at 200, 300, 400, 500, and 600 ℃ for 60 min, respectively. The effect of tempering parameters under the same magnetic field on the corrosion resistance of the steel in 3.5%NaCl solution was studied. The effect of tempering parameter on the corrosion properties of the samples in 3.5%NaCl solution under the same magnetic field was observed and analyzed by optical microscopy, electrochemical impedance spectroscopy and potentiodynamic polarization curve. The results show that the electrochemical impedance spectroscopy plots of all the specimens are similar in shape, indicating that the electrochemical mechanism of the specimens is not changed after tempering, and the capacitive reactance capacitive reactance arc radius is large, the best corrosion resistance is obtained. The self-corrosion current density of the sample tempered at 400 ℃ for 60 min is the lowest.

Key words: 25CrMo48V steel, tempering process, heat treatment with magnetic field, electrochemical properties, corrosion resistance

中图分类号:

TG156.97

杨赛玄, 杨晓斌, 陆盼盼, 赵倩, 董治中, 董纪. 1 T磁场下回火工艺对25CrMo48V钢耐蚀性能的影响[J]. 金属热处理, 2023, 48(9): 106-109.

Yang Saixuan, Yang Xiaobin, Lu Panpan, Zhao Qian, Dong Zhizhong, Dong Ji. Effect of tempering process under 1 T magnetic field on corrosion resistance of 25CrMo48V steel[J]. Heat Treatment of Metals, 2023, 48(9): 106-109.

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1 T磁场下回火工艺对25CrMo48V钢耐蚀性能的影响

Effect of tempering process under 1 T magnetic field on corrosion resistance of 25CrMo48V steel

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