Characterization of microstructure of A508III/309L/308L weld and oxide films formed in deaerated high-temperature water

被引：41
作者：
Xiong, Qi [1 ,2 ,3 ]
Li, Hongjuan [1 ,2 ,3 ]
Lu, Zhanpeng [1 ,2 ,3 ]
Chen, Junjie [1 ,2 ]
Xiao, Qian [1 ,2 ]
Ma, Jiarong [1 ,2 ]
Ru, Xiangkun [1 ,2 ]
机构：
[1] Shanghai Univ, Sch Mat Sci & Engn, Inst Mat, 149 Yanchang Rd,POB 269, Shanghai 200072, Peoples R China
[2] Shanghai Univ, State Key Lab Adv Special Steels, 149 Yanchang Rd, Shanghai 200072, Peoples R China
[3] Shanghai Univ, Shanghai Key Lab Adv Ferromet, 149 Yanchang Rd, Shanghai 200072, Peoples R China
来源：
JOURNAL OF NUCLEAR MATERIALS | 2018年 / 498卷
基金：
国家重点研发计划;
关键词：
Microstructure; Ferrite; Low alloy steel; Stainless steel; Oxide film; High temperature water; STRESS-CORROSION CRACKING; 316L STAINLESS-STEEL; LOW-ALLOY STEEL; DISSIMILAR WELDS; BEHAVIOR; OXIDATION; 304-STAINLESS-STEEL; MECHANISM; FRACTURE; SCC;
D O I：
10.1016/j.jnucmat.2017.10.030
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The microstructure of A508III/309L/308L weld clad and the properties of the oxide films formed in simulated pressurized water reactor primary water at 290 degrees C were characterized. The A508III heat-affected zone (HAZ) consisted primarily of a decarburization zone with ferrite near the fusion line and a following pearlite structure with fine grains. A high hardness region in the HAZ could be the result of C-enrichment. M23C6 and M7C3 precipitates were observed in element transition zone. 308L stainless steel (SS) containing similar to 12% ferrites exhibited both ferritic-austenitic solidification mode (FA mode, gamma ->delta) and austenitic-ferritic solidification mode (AF mode, gamma ->delta), whereas 309L SS containing similar to 9% ferrites exhibited only FA mode. The A508III surface oxide film was mainly Fe3O4 in deaerated high-temperature water. The coarse grain zone covered with few oxide particles was different from other types of film on the other region of HAZ and the bulk zone. More pitting appears on 309L SS after immersion in deaerated high-temperature water due to the dissolution of inclusions. SS surface oxide films consisted primarily of spinels. The oxide film on SS was divided into two layers. Ni was concentrated mainly at the oxide/substrate interface. The oxide film formed on 309L was thicker than that on the 308L. The ferrite in the stainless steel could improve the oxidation resistance. (C) 2017 Elsevier B.V. All rights reserved.
引用
收藏
页码：227 / 240
页数：14
相关论文
共 54 条
[1]   Composition, structure and properties of the oxide films formed on the stainless steel 316L in a primary type PWR environment [J].
Belo, MD ;
Walls, M ;
Hakiki, NE ;
Corset, J ;
Picquenard, E ;
Sagon, G ;
Noel, D .
CORROSION SCIENCE, 1998, 40 (2-3) :447-463
[2]   Influences of Cr content and PWHT on microstructure and oxidation behavior of stainless steel weld overlay cladding materials in high temperature water [J].
Cao, X. Y. ;
Ding, X. F. ;
Lu, Y. H. ;
Zhu, P. ;
Shoji, T. .
JOURNAL OF NUCLEAR MATERIALS, 2015, 467 :32-41
[3]   Characterization of interfacial reactions and oxide films on 316L stainless steel in various simulated PWR primary water environments [J].
Chen, Junjie ;
Xiao, Qian ;
Lu, Zhanpeng ;
Ru, Xiangkun ;
Peng, Hao ;
Xiong, Qi ;
Li, Hongjuan .
JOURNAL OF NUCLEAR MATERIALS, 2017, 489 :137-149
[4]   The effects of cold rolling orientation and water chemistry on stress corrosion cracking behavior of 316L stainless steel in simulated PWR water environments [J].
Chen, Junjie ;
Lu, Zhanpeng ;
Xiao, Qian ;
Ru, Xiangkun ;
Han, Guangdong ;
Chen, Zhen ;
Zhou, Bangxin ;
Shoji, Tetsuo .
JOURNAL OF NUCLEAR MATERIALS, 2016, 472 :1-12
[5]   Corrosion of engineering materials in a supercritical water cooled reactor: Characterization of oxide scales on Alloy 800H and stainless steel 316 [J].
Choudhry, Kashif I. ;
Mahboubi, Shooka ;
Botton, Gianluigi A. ;
Kish, Joseph R. ;
Svishchev, Igor M. .
CORROSION SCIENCE, 2015, 100 :222-230
[6]   The influence of microstructure on the corrosion rate of various carbon steels [J].
Clover, D ;
Kinsella, B ;
Pejcic, B ;
De Marco, R .
JOURNAL OF APPLIED ELECTROCHEMISTRY, 2005, 35 (02) :139-149
[7]  
Coleman MC, 1998, INTERNATIONAL CONFERENCE ON INTEGRITY OF HIGH-TEMPERATURE WELDS, P169
[8]   Early stage SCC initiation analysis of fcc Fe-Cr-Ni ternary alloy at 288 °C: A quantum chemical molecular dynamics approach [J].
Das, Nishith Kumar ;
Suzuki, Ken ;
Ogawa, Kazuhiro ;
Shoji, Tetsuo .
CORROSION SCIENCE, 2009, 51 (04) :908-913
[9]   Microstructural characterization of dissimilar welds between alloy 800 and HP heat-resistant steel [J].
Dehmolaei, R. ;
Shamanian, M. ;
Kermanpur, A. .
MATERIALS CHARACTERIZATION, 2008, 59 (10) :1447-1454
[10]   Metallurgical factors in stress corrosion cracking (SCC) and hydrogen-induced cracking (HIC) [J].
Elboujdaini, M. ;
Revie, R. W. .
JOURNAL OF SOLID STATE ELECTROCHEMISTRY, 2009, 13 (07) :1091-1099
123456