430铁素体不锈钢晶间腐蚀敏感性评测方法及影响因素

特殊钢 ›› 2012, Vol. 33 ›› Issue (5): 57-60.

430铁素体不锈钢晶间腐蚀敏感性评测方法及影响因素

邵泽斌^1，2，陈海涛²，郎宇平²，朱心昆¹

1 昆明理工大学材料科学与工程学院，昆明650093；
2 钢铁研究总院结构材料研究所，北京100081

收稿日期:2012-03-21 出版日期:2012-10-01 发布日期:2022-10-10
作者简介:邵泽斌( 1987-),男，硕士研究生,2008年太原理工大学毕业,铁素体不锈钢研究。
基金资助:
国家科技支撑计划资助(2007BAE51B01)

Evaluation Method and Effective Factor on Intergranular Corrosion Susceptibility of 430 Ferrite Stainless Steel

Shao Zebin^1，2， Chen Haitao², Lang Yupin²， Zhu Xinkun¹

1 Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093.
2 Institute for Structure Materials, Central Iron and Steel Research Institute, Beijing 100081

Received:2012-03-21 Published:2012-10-01 Online:2022-10-10

摘要/Abstract

摘要： 采用双环-电化学(DL-EPR)法评价了热轧和退火430铁素体不锈钢(/%:0.038C、16.83Cr)的晶间腐蚀敏感性。确定了一种适合的试验参数,试验溶液为0.05 mol/L H₂SO₄+0.001 mol/L KSCN+0.01 mol/LNa₂SO₄,扫描速率为正扫5.0 mV/s,反扫1.67 mV/s,当Ra值(反扫电流Ir/正扫电流Ia)越高,晶间腐蚀敏感性越严重。试验结果表明,热轧后的430铁素体不锈钢存在明显的晶间腐蚀敏感性,空冷试样的舶值比水冷的高;经过750～850℃10 min退火处理能够有效减轻和消除热轧430铁素体不锈钢晶间腐蚀敏感性。

关键词: 双环-电化学(DI-EPR)法, 晶间腐蚀, 铁素体不锈钢

Abstract: A double loop-electrochemical proteinomimetic reactivation (DL-EPR) method is used to evaluate the intergranular corrosion (IGC) susceptibility of hot rolled and annealed 430 ferrite stainless steel (0. 038% C, 16. 83% Cr). A suitable test parameter- in test solution 0. 05 mol/L H₂SO₄ +0. 001 mol/L KSCN + 0. 10 mol/L Na₂SO₄ with anodic potential scanning rate 5. 0 mV/s and reverse potential scanning rate 1.67 mV7s is determined, and the larger the value Ra (reverse scanning current Ir / anodic scanning current la) the - more serious the intergranular corrosion susceptibility of steel. Test results show that the hot rolled 430 ferritic stainless steel has obvious intergranular corrosion susceptibility and the Ra value of the sample air-cooled after rolling is larger than that of the sample water-cooled after rolling； with annealed treatment at 750 〜850℃ for 10 min the intergranular corrosion susceptibility of hot rolled 430 ferrite stainless steel is effectively reduced and eliminated.

邵泽斌, 陈海涛, 郎宇平, 朱心昆. 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.

Shao Zebin, Chen Haitao, Lang Yupin, Zhu Xinkun. Evaluation Method and Effective Factor on Intergranular Corrosion Susceptibility of 430 Ferrite Stainless Steel[J]. Special Steel, 2012, 33(5): 57-60.

参考文献

1 Majidi A P, Streicher M A. The Double Loop Reactivation Method for Detecting Sensitization in AISI 304 Stainless Steels [J]. Corrosion, 1984.40(11) ：584-592.
2 Amadou S H, Braham C. Evaluation by the Double Loop Electrochemical Potentiokinetic Reactivation Test of Aged Ferritic Stainless Steel Intergranular Corrosion Susceptibility [J]. Metallurgical and Materials Transactions a,2010,41A (12) ：3I36-3150.
3 Jha P B, Singh C D. Process Technology for the Continuous Hot Band Annealing of 17% Cr Ferritic Stainless Steel [J]. Journal of Materials Engineering and Pe血rmance ,2002 ,2(11) ： 180-186.
4 Kima J, Yeong H, Uhmb H S,et al. Intergranular Corrosion of Ti-sta- bilized 11 wt% CR Ferritic Stainless Steel for Automotive Exhaust Systems [J]. Corrosion Science ,2009,51(11) ：2716-2723.
5 高中平，陈范才,赵常就.动电位再活化法评价晶间腐蚀敏感性的各种判据[J] .四川化工与腐蚀控制,1999,2(4044.
6 查小琴，邵军.不锈钢晶间腐蚀测试方法〔JL材料开发与应用,2009,24(3) :60-65.
7 Anon, A STM G5 -94 (2004). Standard Reference Test Method for Making Potentiostatic and Potentiodynamic Anodic Polarization Measurements [ S].2004
8 Anon, ASTM G108-94 (2004). Standard Test Method for Electrochemical Reactivation (epr) for Detecting Sensitization of AISI Type 304 and 304L Stainless Steels [S]. 1999
9 金维松，郎宇平，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.
10 Deng Bo,Jiang Yi-ming,Xu Ju-liang,et al. Application of the Modified Electrochemical Potentiodynamic Reactivation Method to Detect Susceptibility to Intergranular Corrosion of a Newly Developed I^ean Duplex Stainless Steel LDX2101 [J]. Corrosion Science, 2010,52 (3) ：969-977.
11 余永宁.金属学原理[M],北京:冶金工业岀版社,2000：79.
12 雍岐龙.钢铁材料中的第二相〔M].北京：冶金工业出版社, 2006：136.
13 Chipman J. Thermodynamics and Phase Diagram of the Fe-C System [J]. Metallurgical and Materials Transactions B, 1972,3 (1) :55- 64.
14 陆世英，张廷凯,杨长强，等.不锈钢[M].北京:原子能岀版社, 1995：102.

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