基于磁性测定法研究奥氏体不锈钢波纹管的形变马氏体含量
Research on Deformation-induced Martensite Content of Austenite Stainless Steel Bellows Based on Magnetism Testing Method
摘 要
根据形变诱发马氏体磁性的变化, 针对SUS304和SUS316L奥氏体不锈钢分步机械胀压成型波纹管以及未经固溶处理与经固溶处理SUS304奥氏体不锈钢液压成型波纹管, 采用MP30E-S型铁素体测定仪定量测定了波纹管母材区及焊缝区的形变马氏体含量。结果表明: 形变马氏体含量的大小与波纹管材料、相对变形量以及热处理状态等均有很大关系; 在相同变形量条件下SUS316L不锈钢的形变马氏体含量比SUS304不锈钢要小得多; 相对变形量越大, 形变马氏体含量也越大, 且波峰处的形变马氏体含量较波谷处的要大得多; 与未固溶处理波纹管相比, 经固溶处理后波纹管的形变马氏体含量显著减小。
磁性测定法
形变马氏体
austenite stainless steel bellow
magnetism testing method
deformation-induced martensite
Abstract
According to magnetism variety of the deformation-induced martensite, the deformation-induced martensite content was tested with MP30E-S type ferrite measurement instrument, for the bellows made of SUS304 and SUS316L austenite stainless steel separately formed by machine-bulge method, and bellows made of SUS304 austenite stainless steel formed by hydraulic pressure with or without solution treatment respectively. The results show that the deformation-induced martensite content greatly depended on the material, relative deformation amount and heat treatment state. The deformation-induced martensite content of SUS316L stainless steel was much less than that of SUS304 stainless steel under the same deformation condition. The deformation-induced martensite content increased with the increase of relative deformation amount, and the deformation-induced martensite content at the wave crest was much more than that at the wave trough. Solution treatment could greatly reduce the deformation-induced martensite content of the bellows.
中图分类号 TG115.27
所属栏目 试验与研究
基金项目 杭州市社会发展科研攻关资助项目(2009113B22)
收稿日期 2011/6/14
修改稿日期
网络出版日期
作者单位点击查看
备注盛水平(1964-), 男,教授级高级检验师, 硕士。
引用该论文: SHENG Shui-ping,CHEN Hai-yun,WU Hong-jun,WANG Fei. Research on Deformation-induced Martensite Content of Austenite Stainless Steel Bellows Based on Magnetism Testing Method[J]. Physical Testing and Chemical Analysis part A:Physical Testing, 2012, 48(2): 71～75
盛水平,陈海云,伍红军,王飞. 基于磁性测定法研究奥氏体不锈钢波纹管的形变马氏体含量[J]. 理化检验－物理分册, 2012, 48(2): 71～75
被引情况:
【1】付检平,沈功田,于润桥,胡斌, "304奥氏体不锈钢涡流检测频率的优化",无损检测 35, 8-12(2013)
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参考文献
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【3】王勤生,刘桐生, 李永生,等.金属波纹管固溶处理前后金相组织的改变及其对波纹管抗应力腐蚀性能的影响[J].压力容器.2004, 21(7): 9-12.
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【10】许淳淳, 胡钢, 张新生,等.不锈钢冷加工形变诱发马氏体相变及其腐蚀行为[J].材料保护,2002, 35(3):15-17.
【2】王勤生, 李永生, 胡毅,等.固溶处理及不同冷加工方式对0Cr18Ni9不锈钢波纹管抗应力腐蚀性能的影响[J].压力容器, 2004, 21(3): 11-15.
【3】王勤生,刘桐生, 李永生,等.金属波纹管固溶处理前后金相组织的改变及其对波纹管抗应力腐蚀性能的影响[J].压力容器.2004, 21(7): 9-12.
【4】CIGADA A,MAZZA R,PEDEFERRI P,et al,Stress corrosion cracking of cold-worked austenitic stainless steels[J]. Corrosion Science,1982,22(6):559-579.
【5】GARCIA C, MARTIN F, TIEDRA P D,et al. Effects of prior cold work and sensitization heat treatment on chloride stress corrosion cracking in type 304 stainless steels[J]. Corrosion Science,2001,43:1519-1593.
【6】ZHENG J H,BOGAERTS W F. Effects of cold work on stress corrosion cracking of type 316L stainless steel in hot lithium hydroxide solution[J]. Corrosion,1993, 49(7):585-596.
【7】徐祖耀.马氏体相变与马氏体[M].北京: 科学出版社, 1999.
【8】胡钢, 许淳淳, 张新生,等.冷加工对304不锈钢孔蚀敏感性的影响[J].中国腐蚀与防护学报, 2002, 22(4): 198-201.
【9】许淳淳, 张新生, 胡钢.马氏体相变对304不锈钢应力腐蚀的影响[J].材料研究学报.2003, 17(3):310-314.
【10】许淳淳, 胡钢, 张新生,等.不锈钢冷加工形变诱发马氏体相变及其腐蚀行为[J].材料保护,2002, 35(3):15-17.
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