合金晶间腐蚀化学浸泡试验方法的适用性
Applicability of Chemical Immersion Test Methods for Intergranular Corrosion Evaluation of Alloy 690
摘 要
通过化学浸泡试验、动电位极化曲线并结合扫描电镜(SEM)对晶间腐蚀形貌的观察，研究探讨了ASTM A262 B法、C法以及硝酸-氢氟酸法三种化学浸泡试验方法对不同热处理态的690合金管的晶间腐蚀敏感性检测的适用性。结果表明: 三种化学浸泡方法中，硝酸-氢氟酸法最佳，能准确且快速地评价690合金管的晶间腐蚀敏感性。
晶间腐蚀
标准方法
浸泡试验
alloy 690
intergranular corrosion
standard method
immersion test
Abstract
The applicability of chemical immersion test methods for intergranular corrosion (IGC) of alloy 690 was investigated by chemical immersion test, potentiodynamic polarization curve combined with scanning electron microscopy (SEM) observation of intergranular corrosion morphology. The results revealed that HNO3-HF method was the best way to test the intergranular corrosion behavior of alloy 690, this method could evaluate the sensitivity of intergranular corrosion of alloy 690 accurately and rapidly.
中图分类号 TG174 DOI 10.11973/fsyfh-201603011690
所属栏目 应用技术
基金项目 大型先进压水堆核电站重大专项(2010ZX06004-01)
收稿日期 2015/3/2
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网络出版日期
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备注张乐福(1967-)，副教授，从事核材料腐蚀及其水化学研究,
引用该论文: LIU Xiao-qiang,MENG Fan-jiang,XU Xue-lian,WANG Jia-mei,YANG Chen,ZHANG Le-fu. Applicability of Chemical Immersion Test Methods for Intergranular Corrosion Evaluation of Alloy 690[J]. Corrosion & Protection, 2016, 37(3): 236
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参考文献
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【2】STAEHLE R W,GORMAN J A. Quantitative assessment of submodes of stress corrosion cracking on the secondary side of steam generator tubing in pressurized water reactors:part 1[J]. Corrosion,2003,59(11):931-994.
【3】THOMAS M A,GARY S W. Behavior of grain boundary chemistry and precipitates upon thermal treatment of controlled purity alloy 690[J]. Metallurgical Transactions A,1990,21(A):2097-2107.
【4】ASTM A262-10 Standard practices for detecting susceptibility to intergranular attack in austenitic stainless steels[S].
【5】GB/T 4334-2008 金属和合金的腐蚀-不锈钢晶间腐蚀试验方法[S].
【6】ASTM G5-94(2011) Standard reference test method for making potentiostatic and potentiodynamic anodic polarization measurements[S].
【7】ASTM G59-97(2009) Standard test method for conducting potentiodynamic polarization resistance measurements[S].
【8】ASTM G102-89(2010) Standard practice for calculation of corrosion rates and related information from electrochemical measurements[S].
【9】JIS G0580 Method of electrochemical potentiokinetic reactivation ratio measurement for stainless steels[S].
【10】袁嘉琪. 镍基合金690耐晶间腐蚀性能试验方法浅析[C]//中国核科学技术进展报告(第二卷)——中国核学会2011年学术年会论文集第4册(核材料分卷、同位素分离分卷、核化学与放射化学分卷).[出版地不详]:中国核学会,2011:7.
【11】张红斌,李守军,胡尧和,等. 国外关于蒸汽发生器传热管用Inconel 690合金研究现状[J]. 特钢技术,2003(4):2-11.
【12】KAI J,YU G,TSAI C,LIU M,et al. The effects of heat treatment on the chromium depletion,precipitate evolution,and corrosion resistance of Inconel alloy 690[J]. Metallurgical and Materials Transactions A,1989,20(10):2057-2067.
【13】KAI J J,LIU M N. The effects of heat treatment on the carbide evolution and the chromium depletion along grain boundary of inconel 690 alloy[J]. Scripta Metallurgical,1989,23(1):17-22.
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