Acta Metall Sin  1988, Vol. 24 Issue (6): 482-486    DOI:

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MICROSTRUCTURE AND LOCALIZED CORROSION RESISTANCE OF DEFORMED 18-5-Nb DUPLEX STAINLESS STEEL

ZHAO Pu;LU Shiying Central Iron and Steel Research Institute; Ministry of Metallutgical Industry; Beijing

ZHAO Pu;LU Shiying Central Iron and Steel Research Institute; Ministry of Metallutgical Industry; Beijing. MICROSTRUCTURE AND LOCALIZED CORROSION RESISTANCE OF DEFORMED 18-5-Nb DUPLEX STAINLESS STEEL. Acta Metall Sin, 1988, 24(6): 482-486.

Abstract References Related Articles Recommended Metrics Download:  PDF(1106KB)  Export:  BibTeX | EndNote (RIS)       Abstract  The SCC susceptibility of the plastically predeformed 18-5-Nb duplexstainless steel to localized corrosion was evaluated in Both 25% NaCl+1% K_2Cr_2O_7and 42% MgCl_2 Boiling solutions. The γ-phase in the steel is metastable at roomtemperature and the γ-α′martensitic transformation can be induced by cold plasticdeformation. With the increase in deformation, the volume fraction of α′marten-site increases while the pitting resistance of the alloy decreases. Cold plastic defor-mation results in a remarkable deterioration of SCC resistance of the steel inchloride solutions, resulting from the decrease in corrosion resistance of γ-phasein the duplex. It is indicated that, in NaCl solution, SCC in 18-5-Nb duplexstainless steel initiates at pits and the selective attack on the γ-phase plays asignificant role in the initiation and development of SCC. Key words:  duplex stainless steel      plastic deformation      stress corrosion cracking      Received:  18 June 1988      Service E-mail this article Add to citation manager E-mail Alert RSS （） Articles by authors URL:  https://www.ams.org.cn/EN/     OR     https://www.ams.org.cn/EN/Y1988/V24/I6/482 1 Murr L E, Staudhammer K P, Hecker S S. Metall Trans, 1982; 13A: 627--635 2 Kamide H, Sugawara H. Corrosion, 1979; 35: 456--460 3 Honkasalo A. Corrosion, 1973; 29: 237 4 滝沢贵久男,志水康彦,米田英作,庄司戈止,田树今男.铁钢,1980;66:514--522 5 上出英彦,菅原英夫.日本金属学会志,1979;43:216--222 6 Nakayama T, Takano M. Corrosion, 1982; 38: 1--9 7 Cigada A, Mazza, B, Pedeferri P, Salvago G, Sinigaglia D, Zanini G. Corros Sci, 1982; 22: 559--578+ [1] ZHANG Haifeng, YAN Haile, FANG Feng, JIA Nan. Molecular Dynamic Simulations of Deformation Mechanisms for FeMnCoCrNi High-Entropy Alloy Bicrystal Micropillars[J]. 金属学报, 2023, 59(8): 1051-1064. [2] WAN Tao, CHENG Zhao, LU Lei. Effect of Component Proportion on Mechanical Behaviors of Laminated Nanotwinned Cu[J]. 金属学报, 2023, 59(4): 567-576. [3] MA Zhimin, DENG Yunlai, LIU Jia, LIU Shengdan, LIU Honglei. Effect of Quenching Rate on Stress Corrosion Cracking Susceptibility of 7136 Aluminum Alloy[J]. 金属学报, 2022, 58(9): 1118-1128. [4] GUO Xiangru, SHEN Junjie. Modelling of the Plastic Behavior of Cu Crystal with Twinning-Induced Softening and Strengthening Effects[J]. 金属学报, 2022, 58(3): 375-384. [5] REN Shaofei, ZHANG Jianyang, ZHANG Xinfang, SUN Mingyue, XU Bin, CUI Chuanyong. Evolution of Interfacial Microstructure of Ni-Co Base Superalloy During Plastic Deformation Bonding and Its Bonding Mechanism[J]. 金属学报, 2022, 58(2): 129-140. [6] CHEN Guo, WANG Xinbo, ZHANG Renxiao, MA Chengyue, YANG Haifeng, ZHOU Li, ZHAO Yunqiang. Effect of Tool Rotation Speed on Microstructure and Properties of Friction Stir Processed 2507 Duplex Stainless Steel[J]. 金属学报, 2021, 57(6): 725-735. [7] SHI Zengmin, LIANG Jingyu, LI Jian, WANG Maoqiu, FANG Zifan. In Situ Analysis of Plastic Deformation of Lath Martensite During Tensile Process[J]. 金属学报, 2021, 57(5): 595-604. [8] LIN Pengcheng, PANG Yuhua, SUN Qi, WANG Hangduo, LIU Dong, ZHANG Zhe. 3D-SPD Rolling Method of 45 Steel Ultrafine Grained Bar with Bulk Size[J]. 金属学报, 2021, 57(5): 605-612. [9] CAO Qingping, LV Linbo, WANG Xiaodong, JIANG Jianzhong. Magnetron Sputtering Metal Glass Film Preparation and the “Specimen Size Effect” of the Mechanical Property[J]. 金属学报, 2021, 57(4): 473-490. [10] NI Ke, YANG Yinhui, CAO Jianchun, WANG Liuhang, LIU Zehui, QIAN Hao. Softening Behavior of 18.7Cr-1.0Ni-5.8Mn-0.2N Low Nickel-Type Duplex Stainless Steel During Hot Compression Deformation Under Large Strain[J]. 金属学报, 2021, 57(2): 224-236. [11] DENG Yahui, YANG Yinhui, PU Chaobo, NI Ke, PAN Xiaoyu. Effect of Mn Addition on High Temperature Tensile Behavior of 23%Cr Low Nickel Type Duplex Stainless Steel[J]. 金属学报, 2020, 56(7): 949-959. [12] CHEN Yongjun, BAI Yan, DONG Chuang, XIE Zhiwen, YAN Feng, WU Di. Passivation Behavior on the Surface of Stainless Steel Reinforced by Quasicrystal-Abrasive via Finite Element Simulation[J]. 金属学报, 2020, 56(6): 909-918. [13] CHEN Xiang,CHEN Wei,ZHAO Yang,LU Sheng,JIN Xiaoqing,PENG Xianghe. Assembly Performance Simulation of NiTiNb Shape Memory Alloy Pipe Joint Considering Coupling Effect of Phase Transformation and Plastic Deformation[J]. 金属学报, 2020, 56(3): 361-373. [14] WANG Guiqin,WANG Qin,CHE Honglong,LI Yajun,LEI Mingkai. Effects of Silicon on the Microstructure and Propertiesof Cast Duplex Stainless Steel with Ultra-HighChromium and High Carbon[J]. 金属学报, 2020, 56(3): 278-290. [15] WANG Lei, AN Jinlan, LIU Yang, SONG Xiu. Deformation Behavior and Strengthening-Toughening Mechanism of GH4169 Alloy with Multi-Field Coupling[J]. 金属学报, 2019, 55(9): 1185-1194. No Suggested Reading articles found! Viewed Full text Abstract Cited   Shared      Discussed