热处理对奥氏体不锈钢磁导率的影响

doi:10.13251/j.issn.0254-6051.2024.09.042

摘要/Abstract

摘要： 根据相对磁导率μ概念,对316L奥氏体不锈钢在＜10 Pa真空条件下,进行1050 ℃×2 h热处理,使用斯蒂芬磁导率测量仪Ferromaster Plus间接测量方式,对原始态、热处理态、热处理后加工态试样对应厚度方向和水切割外径面方向的相对磁导率值进行测量并分析。结果表明:相较原始态试样,热处理态试样厚度方向平均磁导率降幅为14.0%,水切割外径面方向平均磁导率降幅为16.2%;相较热处理态试样,热处理后加工态试样厚度方向平均磁导率为1.04,无变化。热处理不但对降低原材料磁导率有明显作用,而且对提高热处理后加工态材料磁导率稳定性有较大贡献。

关键词: 低温超导磁体, 奥氏体不锈钢, 磁导率, 热处理

Abstract: Based on the concept of relative permeability μ, a heat treatment of 1050 ℃×2 h for 316L austenitic stainless steel under vacuum condition of <10 Pa was conducted. The relative permeability values of the original, heat-treated and processed after heat treatment specimens corresponding to the thickness direction and the outside diameter direction after machining by the water-cutting were measured and analyzed by means of the direct measurement of Stephens magnetic permeability meter Ferromaster Plus. The results show that compared with the original specimen, the average permeability in the thickness direction of the heat-treated specimen decreases by 14.0%, and the average permeability in the outside diameter direction after machining by the water-cutting decreases by 16.2%. Compared with the heat-treated specimen, the average value of magnetic permeability in the thickness direction of processed specimens after heat treatment is 1.04, and there is no change. Heat treatment can not only reduce the permeability of raw materials, but also improve the stability of permeability of the processed materials after heat treatment.

Key words: cryogenic superconducting magnet, austenitic stainless steel, magnetic permeability, heat treatment

中图分类号:

TG166.2

兰贤辉, 葛正福, 马鹏, 陈传, 周涛, 刘伟, 李超. 热处理对奥氏体不锈钢磁导率的影响[J]. 金属热处理, 2024, 49(9): 255-259.

Lan Xianhui, Ge Zhengfu, Ma Peng, Chen Chuan, Zhou Tao, Liu Wei, Li Chao. Effect of heat treatment on magnetic permeability of austenitic stainless steel[J]. Heat Treatment of Metals, 2024, 49(9): 255-259.

参考文献

[1]马光同, 杨文姣, 王志涛, 等. 超导磁浮交通研究进展[J]. 华南理工大学学报(自然科学版), 2019, 47(7): 68-74, 82.
Ma Guangtong, Yang Wenjiao, Wang Zhitao, et al. Research progress of superconducting maglev traffic[J]. Journal of South China University of Technology (Natural Science Edition), 2019, 47(7): 68-74, 82.
[2]刘莲花, 蒋滨, 陈代谢, 等. 超导磁共振仪器设备国产化现状及挑战[J]. 波谱学杂志, 2022, 39(3): 345-355.
Liu Lianhua, Jiang Bin, Chen Daixie, et al. Current situation and challenges of localization of superconducting magnetic resonance instruments and equipment[J]. Chinese Journal of Magnetic Resonance, 2022, 39(3): 345-355.
[3]郑贝贝. 超导材料在核磁共振成像领域的应用与进展[J]. 山东工业技术, 2020, 296(6): 66-70.
Zheng Beibei. The application and progress of superconductor classification in the field of magnetic resonanceimagin[J]. Journal of Shandong Industrial Technology, 2020, 296(6): 66-70.
[4]艾立旺, 张国民, 靖立伟, 等. 超导体在低温液体泵中的应用研究与发展现状[J]. 低温与超导, 2022, 49(2): 32-43.
Ai Liwang, Zhang Guomin, Jing Liwei, et al. Application research and development status of superconductor in cryogenic liquid pump[J]. Cryogenics and Superconductivity, 2022, 49(2): 32-43.
[5]丘明. 超导输电技术在电网中的应用[J]. 电工电能新技术, 2017, 36(10): 55-62.
Qiu Ming. Applications of superconducting power transmission in power grid[J]. Advanced Technology of Electrical Engineering and Energy, 2017, 36(10): 55-62.
[6]刘立强. 低温技术在大型超导磁体中的应用[J]. 低温工程, 2002, 129(5): 45-48.
Liu Liqiang. Application of cryogenics in large scale superconducting magnets[J]. Cryogenics, 2002, 129(5): 45-48.
[7]汤洪明. BEPCⅡ SCQ、SSM 超导磁体系统低温工作特性研究[D]. 哈尔滨: 哈尔滨工业大学, 2006.
Tang Hongming. Research on cryogenic performance of SCQ and SSM superconducting magnets system for BEPCⅡ[D]. Harbin: Harbin Institute of Technology, 2006.
[8]吴英哲, 赵钦宇, 甘智华, 等. 材料低温力学性能测试技术研究进展[J]. 低温工程, 2021, 243(5): 18-27.
Wu Yingzhe, Zhao Qinyu, Gan Zhihua, et al. Research progress in low-temperature mechanical properties of materials[J]. Cryogenics, 2021, 243(5): 18-27.
[9]范修谦. 铸造奥氏体不锈钢的铬镍当量比和相对磁导率[J]. 特种铸造及有色合金, 2011, 31(5): 439-442.
Fan Xiuqian. Cr-Ni equivalent ratio and relative permeability of cast austenitic stainless steel[J]. Special Casting and Nonferrous Alloys, 2011, 31(5): 439-442.
[10]金丹, 孙可为, 姚燕燕, 等. 铁硅铝磁粉芯磁导率的研究[J]. 热加工工艺, 2011, 40(14): 87-92.
Jin Dan, Sun Kewei, Yao Yanyan, et al. Study on permeability of Fe-Si-Al magnetic powder core[J]. Hot Working Technology, 2011, 40(14): 87-92.
[11]姜亮良, 谭继文. 钢丝绳的微观状态与相对磁导率的关系研究[J]. 煤矿机械, 2014, 35(4): 41-43.
Jiang Liangliang, Tan Jiwen. Study on relationship between microscopic state and relative permeability of wire rope[J]. Coal Mine Machinery, 2014, 35(4): 41-43.
[12]李凯强, 屈华鹏, 冯翰秋, 等. 温变形0Cr14Mn21NiN奥氏体不锈钢的组织性能[J]. 金属热处理, 2019, 44(11): 8-13.
Li Kaiqiang, Qu Huapeng, Feng Hanqiu, et al. Microstructure and mechanical properties of warm deformed 0Cr14Mn21NiN austenitic stainless steel[J]. Heat Treatment of Metals, 2019, 44(11): 8-13.
[13]何亚元, 尹云洋, 严翔, 等. 水韧处理对Fe-Mn-Al系奥氏体钢组织和性能的影响[J]. 金属热处理, 2017, 42(11): 160-162.
He Yayuan, Yin Yunyang, Yan Xiang, et al. Effect of water toughening treatment on microstructure and properties of Fe-Mn-Al austenitic steel[J]. Heat Treatment of Metals, 2017, 42(11): 160-162.
[14]吴子瑕, 钢板磁导率变化对船舶感应磁场的影响[J]. 中国舰船研究, 2014, 9(6): 100-103.
Wu Zixia. Effects of steel magnetic properties on induced magnetic fields of a ship[J]. Chinese Journal of Ship Research, 2014, 9(6): 100-103.
[15]徐国进, 韩思聪, 朱孜毅, 等. 热处理制度对高纯钴微观组织及磁性能的影响[J]. 金属热处理, 2024, 49(4): 61-65.
Xu Guojin, Han Sicong, Zhu Ziyi, et al. Effect of heat treatment on microstructure and magnetic properties of high purity cobalt[J]. Heat Treatment of Metals, 2024, 49(4): 61-65.
[16]徐峰, 吴晓伟. DT4E电磁纯铁真空退火磁性能不合格的分析和改进[J]. 金属热处理, 2023, 48(1): 249-253.
Xu Feng, Wu Xiaowei. Analysis and improvement of unqualified magnetic properties of DT4E electromagnetic pure iron after vacuum annealing[J]. Heat Treatment of Metals, 2023, 48(1): 249-253.
[17]杨元政, 时俊磊, 肖贵华, 等. 热等静压对铁基非晶纳米晶合金软磁性能的影响[J]. 金属热处理, 2023, 48(1): 190-193.
Yang Yuanzheng, Shi Junlei, Xiao Guihua, et al. Effect of hot isostatic pressing on soft magnetic properties of Fe-based amorphous nanocrystalline alloys[J]. Heat Treatment of Metals, 2023, 48(1): 190-193.
[18]蒲军, 周强. 核电产品奥氏体不锈钢材料磁导率控制工艺[J]. 机械, 2012, 39(3): 58-62.
Pu Jun, Zhou Qiang. Control technology of austenitic stainless steel magnetic conductivity of nuclear power generator[J]. Machinery, 2012, 39(3): 58-62.
[19]严密, 彭晓领. 磁学基础与磁性材料[M]. 2版. 杭州: 浙江大学出版社, 2019.
Yan Mi, Peng Xiaoling. Fundamentals of Magnetics and Magnetic Materials[M]. 2nd edition. Hangzhou: Zhejiang University Press, 2019.