铁素体不锈钢餐具铬离子析出量超标的原因分析
Reasons Analysis on Emanation Quantity Over-proof of Chromium Ions in Ferritic Stainless Steel Utensils
摘 要
某430铁素体不锈钢餐具在进行重金属迁移量检验时，发现铬离子析出量严重超标。通过电化学动电位再活化法测试该430铁素体不锈钢试样的腐蚀敏感性，利用光学显微镜、扫描电镜、能谱仪对试样的腐蚀形貌、显微组织和表面碳、铬元素分布情况进行分析。结果表明：在430铁素体不锈钢餐具的生产过程中，由于热处理工艺不当导致杂质碳化物的偏析以及马氏体残余，进而在腐蚀介质中发生原电池腐蚀反应，最终导致铬离子析出量超标。
餐具
铬离子析出量
超标
碳化物
原电池腐蚀
ferritic stainless steel
utensil
emanation quantity of chromium ion
over-proof
carbide
galvanic corrosion
Abstract
The over-proof of chromium ions released from 430 ferritic stainless steel utensils was found during heavy metal migration test. The corrosion susceptibility of the 430 ferritic stainless steel samples was evaluated by electrochemical potentiodynamic reactivation method. And the corrosion morphology, microstructure, distribution of carbon and chromium elements of the samples were analyzed by optical microscopy, scanning electron microscopy and energy dispersive spectroscopy. The results show that the improper heat-treatment of the 430 ferritic stainless steel utensils during the production process led to the generation of impurity carbide segregation and residual martensite. Then the galvanic corrosion happened in the corrosive medium, and eventually resulted in the emanation quantity over-proof of chromium ions.
中图分类号 TG172.9 DOI 10.11973/lhjy-wl201607012
所属栏目 质量控制与失效分析
基金项目
收稿日期 2015/10/26
修改稿日期
网络出版日期
作者单位点击查看
备注黄子东（1987-）,男，硕士，主要从事金属材料电化学腐蚀方面的工作
引用该论文: HUANG Zi-dong,JIANG Yi-kui,CHEN Hui-bo,CHEN Li-ling,LIN Jun-ming,HONG Ze-hao,WEI Liang-xin. Reasons Analysis on Emanation Quantity Over-proof of Chromium Ions in Ferritic Stainless Steel Utensils[J]. Physical Testing and Chemical Analysis part A:Physical Testing, 2016, 52(7): 489～493
黄子东,江乙逵,陈惠波,陈丽玲,林俊铭,洪泽浩,魏亮新. 铁素体不锈钢餐具铬离子析出量超标的原因分析[J]. 理化检验－物理分册, 2016, 52(7): 489～493
共有人对该论文发表了看法，其中：
人认为该论文很差
人认为该论文较差
人认为该论文一般
人认为该论文较好
人认为该论文很好
参考文献
【1】陆世英, 张廷凯,杨长强,等.不锈钢［M］.北京:原子能出版社,1995:102.
【2】李晓波.国内铁素体不锈钢的最新发展［J］.铸造设备研究,2006,4(4):52-54.
【3】GB/T 9684-2011 食品安全国家标准 不锈钢制品［S］.
【4】赵敏,寇海娟.国内外食品接触用不锈钢制品法规的分析比较［J］.科技致富向导,2014(24):187-188.
【5】金维松,朗宇平,荣凡.EPR法评价奥氏体不锈钢晶间腐蚀敏感性的研究［J］.中国腐蚀与防护学报,2007,27(1):54-59.
【6】邵泽斌,陈海涛,朗宇平,等.430铁素体不锈钢晶间腐蚀敏感性评测方法及影响因素［J］.特殊钢,2012,33(5):57-60.
【7】LOPEZ N,CID M,PUIGGALI M,et al.Application of double loop electrochemical potentiodynamic reactivation test to austenitic and duplex stainless steels［J］.Materials Science & Engineering A,1997,229:123-128.
【8】AMADOU T,BRAHAM C,SIDHOM H.Double loop electrochemical potentiokinetic reactivation test optimization in checking of duplex stainless steel intergranular corrosion susceptibility［J］. Metallurgical & Materials Transaction A,2004,35(11):3499-3513.
【9】SINYAVSKII V S,LANOVA V V,KALININ V D.On the mechanism of intergranular corrosion of aluminum［J］.Protection of Metals,2004,40(5):537-539.
【10】印有胜.关于铁素体不锈钢焊接晶间腐蚀的若干问题［J］.焊接学报,1996,17(1):39-47.
【11】肖纪美.不锈钢的金属学问题［M］.北京:冶金工业出版社,2006:172.
【12】吴剑.不锈钢的腐蚀破坏与防蚀技术:（三）晶间腐蚀［J］.腐蚀与防护,1997,18(3):137-140.
【13】邵泽斌.铁素体不锈钢晶间腐蚀检测控制及其对表面质量的影响［D］.昆明:昆明理工大学,2012.
【2】李晓波.国内铁素体不锈钢的最新发展［J］.铸造设备研究,2006,4(4):52-54.
【3】GB/T 9684-2011 食品安全国家标准 不锈钢制品［S］.
【4】赵敏,寇海娟.国内外食品接触用不锈钢制品法规的分析比较［J］.科技致富向导,2014(24):187-188.
【5】金维松,朗宇平,荣凡.EPR法评价奥氏体不锈钢晶间腐蚀敏感性的研究［J］.中国腐蚀与防护学报,2007,27(1):54-59.
【6】邵泽斌,陈海涛,朗宇平,等.430铁素体不锈钢晶间腐蚀敏感性评测方法及影响因素［J］.特殊钢,2012,33(5):57-60.
【7】LOPEZ N,CID M,PUIGGALI M,et al.Application of double loop electrochemical potentiodynamic reactivation test to austenitic and duplex stainless steels［J］.Materials Science & Engineering A,1997,229:123-128.
【8】AMADOU T,BRAHAM C,SIDHOM H.Double loop electrochemical potentiokinetic reactivation test optimization in checking of duplex stainless steel intergranular corrosion susceptibility［J］. Metallurgical & Materials Transaction A,2004,35(11):3499-3513.
【9】SINYAVSKII V S,LANOVA V V,KALININ V D.On the mechanism of intergranular corrosion of aluminum［J］.Protection of Metals,2004,40(5):537-539.
【10】印有胜.关于铁素体不锈钢焊接晶间腐蚀的若干问题［J］.焊接学报,1996,17(1):39-47.
【11】肖纪美.不锈钢的金属学问题［M］.北京:冶金工业出版社,2006:172.
【12】吴剑.不锈钢的腐蚀破坏与防蚀技术:（三）晶间腐蚀［J］.腐蚀与防护,1997,18(3):137-140.
【13】邵泽斌.铁素体不锈钢晶间腐蚀检测控制及其对表面质量的影响［D］.昆明:昆明理工大学,2012.
相关信息
