Interfacial Boundary Character Distribution and Intergranular Corrosion Resistance of Duplex Stainless Steel
摘 要
分别在1 573,1 323 K对UNS S31803双相不锈钢进行了固溶处理,再依次进行了冷轧和退火处理,利用电子背散射衍射和双环电化学动电位再活化法研究了该钢内界面特征分布和晶间腐蚀敏感性,并分析了二者之间的关系。结果表明:在1 573 K固溶并经冷轧退火后,试验钢得到了α+γ两相均匀分布的等轴组织,出现了大量满足K-S和N-W取向关系的低能相界,且α相中低界面能的小角度晶界所占比例超过50%,这些低能界面抑制了晶粒的长大,提高了试验钢的耐晶间腐蚀性能;在1 323 K固溶并经冷轧退火后,试验钢的显微组织为α+γ两相条带组织,满足K-S和N-W关系的相界较少,α相中以大角度晶界为主,其耐晶间腐蚀性能较差。
Abstract
A UNS S31803 duplex stainless steel was treated by solid-solution at 1 573 K and 1 323 K, respectively, and then treated by cold rolling and annealing in sequence. The interfacial boundary character distribution and the susceptibility to intergranular corrosion of the steel were studied by the electron backscattered diffraction and double-loop electrochemical potentiokinetic reactivation method. The relationship between the two properties was analyzed. The results show that after solid-solution at 1 573 K followed by cold rolling and annealing, the equiaxed structure with evenly distributed α and γ phases was obtained in tested steel and a large number of low-energy phase boundaries with K-S and N-W orientation relationship appeared. The percentage of low-angle grain boundaries in α phase was over 50%. These low-energy boundaries hindered the growth of grains, resulting in the improvement of intergranular corrosion resistance of tested steel. After solid-solution at 1 323 K followed by cold rolling and annealing, the microstructure of tested steel was composed of band-like α+γ phases and the phase boundaries with K-S and N-W orientation relationship were relatively few. There were mainly high-angle grain boundaries in α phase. The intergranular corrosion resistance was relatively poor.
中图分类号 TG142.1 DOI 10.11973/jxgccl201708004
所属栏目 试验研究
基金项目 国家自然科学基金资助项目(51471100)
收稿日期 2016/6/13
修改稿日期 2017/5/18
网络出版日期
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备注朱言利(1991-),男,山东菏泽人,硕士研究生
引用该论文: ZHU Yanli,XU Ting,QIN Congxiang,YIN Wenhong,FANG Xiaoying. Interfacial Boundary Character Distribution and Intergranular Corrosion Resistance of Duplex Stainless Steel[J]. Materials for mechancial engineering, 2017, 41(8): 18~22
朱言利,许婷,秦聪祥,尹文红,方晓英. 双相不锈钢内界面特征分布和耐晶间腐蚀性能[J]. 机械工程材料, 2017, 41(8): 18~22
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参考文献
【1】ROBERT N G. Duplex stainless steels microstructure, properties and applications[M]. Camridge:Abington Publishing, 1997.
【2】CHEN L, YUAN F P, LIANG P, et al. Mechanical properties and nanostructures in a duplex stainless steel subjected to equal channel angular pressing[J]. Materials Science and Engineering A, 2012, 551:154-159.
【3】BELYAKOV A, KIMURA Y, TSUZAKI K. Microstructure evolution in dual-phase stainless steel during severe deformation[J]. Acta Materialia, 2006, 54(9):2521-2532.
【4】LISOVSKⅡ Y. On grain boundary character distribution in materials with cubic structure[J]. Interface Science, 1997, 4(1):119-127.
【5】FANG X Y, ZHANG K, GUO H, et al. Twin-induced grain boundary engineering in 304 stainless steel[J]. Materials Science and Engineering A, 2008, 487(1/2):7-13.
【6】SHIMADA M, KOKAWA H, WANG Z J. Optimization of grain boundary character distribution for intergranular corrosion resistant 304 stainless steel by twin-induced grain boundary engineering[J]. Acta Materialia, 2002, 50(9):2331-2341.
【7】MICHIUCHI M, KOKAWA H, WANG Z J, et al. Twin-induced grain boundary engineering for 316 austenitic stainless steel[J]. Acta Materialia, 2006, 54(19):5179-5184.
【8】WATANABE T, TSUREKAWA S. The control of brittleness and development of desirable mechanical properties in polycrystalline systems by grain boundary engineering[J]. Acta Materialia, 1999, 47(15/16):4171-4185.
【9】QIU D, ZHANG W Z. A TEM study of the crystallography of austenite precipitates in a duplex stainless steel[J], Acta Materialia, 2007, 55(20):6754-6764.
【10】CHEN C Y, YEN H W, YANG J R. Sympathetic nucleation of austenite in a Fe-22Cr-5Ni duplex stainless steel[J]. Scripta Materialia, 2007, 56(8):673-676.
【11】SUIKKANEN P P, CAYRON C, DEARDO A J, et al. Crystallographic analysis of isothermally transformed bainite in 0.2C-2.0Mn-1.5Si-0.6Cr steel using EBSD[J]. Journal of Materials Science & Technology, 2013, 29(4):359-366.
【12】MIYAMOTO G, TAKAYAMA N, FURUHARA T. Accruate measurement of the orientation relationship of lath martensite and bainite by electron backscatter diffraction analysis[J]. Scripta Materialia, 2009, 60(12):1113-1116.
【13】徐学利, 王纯, 毕宗岳, 等. Incoloy825合金TIG和PAW焊接接头耐晶间腐蚀性能的对比[J]. 机械工程材料, 2015, 39(9):68-71.
【14】陈蓉, 华浩, 吴安如, 等. 铬含量对00Cr25Ni7Mo3N双相不锈钢力学性能及耐腐蚀性能的影响[J]. 机械工程材料, 2016, 40(2):26-28.
【2】CHEN L, YUAN F P, LIANG P, et al. Mechanical properties and nanostructures in a duplex stainless steel subjected to equal channel angular pressing[J]. Materials Science and Engineering A, 2012, 551:154-159.
【3】BELYAKOV A, KIMURA Y, TSUZAKI K. Microstructure evolution in dual-phase stainless steel during severe deformation[J]. Acta Materialia, 2006, 54(9):2521-2532.
【4】LISOVSKⅡ Y. On grain boundary character distribution in materials with cubic structure[J]. Interface Science, 1997, 4(1):119-127.
【5】FANG X Y, ZHANG K, GUO H, et al. Twin-induced grain boundary engineering in 304 stainless steel[J]. Materials Science and Engineering A, 2008, 487(1/2):7-13.
【6】SHIMADA M, KOKAWA H, WANG Z J. Optimization of grain boundary character distribution for intergranular corrosion resistant 304 stainless steel by twin-induced grain boundary engineering[J]. Acta Materialia, 2002, 50(9):2331-2341.
【7】MICHIUCHI M, KOKAWA H, WANG Z J, et al. Twin-induced grain boundary engineering for 316 austenitic stainless steel[J]. Acta Materialia, 2006, 54(19):5179-5184.
【8】WATANABE T, TSUREKAWA S. The control of brittleness and development of desirable mechanical properties in polycrystalline systems by grain boundary engineering[J]. Acta Materialia, 1999, 47(15/16):4171-4185.
【9】QIU D, ZHANG W Z. A TEM study of the crystallography of austenite precipitates in a duplex stainless steel[J], Acta Materialia, 2007, 55(20):6754-6764.
【10】CHEN C Y, YEN H W, YANG J R. Sympathetic nucleation of austenite in a Fe-22Cr-5Ni duplex stainless steel[J]. Scripta Materialia, 2007, 56(8):673-676.
【11】SUIKKANEN P P, CAYRON C, DEARDO A J, et al. Crystallographic analysis of isothermally transformed bainite in 0.2C-2.0Mn-1.5Si-0.6Cr steel using EBSD[J]. Journal of Materials Science & Technology, 2013, 29(4):359-366.
【12】MIYAMOTO G, TAKAYAMA N, FURUHARA T. Accruate measurement of the orientation relationship of lath martensite and bainite by electron backscatter diffraction analysis[J]. Scripta Materialia, 2009, 60(12):1113-1116.
【13】徐学利, 王纯, 毕宗岳, 等. Incoloy825合金TIG和PAW焊接接头耐晶间腐蚀性能的对比[J]. 机械工程材料, 2015, 39(9):68-71.
【14】陈蓉, 华浩, 吴安如, 等. 铬含量对00Cr25Ni7Mo3N双相不锈钢力学性能及耐腐蚀性能的影响[J]. 机械工程材料, 2016, 40(2):26-28.
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