Thermal aging effects on mechanical and electrochemical properties of stainless steel weld overlay cladding

被引：12
作者：
Cao, X. Y. [1 ]
Zhu, P. [2 ]
Liu, T. G. [1 ]
Lu, Y. H. [1 ]
Shoji, T. [1 ,3 ]
机构：
[1] Univ Sci & Technol Beijing, Natl Ctr Mat Serv Safety, 30 Xueyuan Rd, Beijing 100083, Peoples R China
[2] Suzhou Nucl Power Res Inst Co Ltd, 1788 Xiltuan Rd, Suzhou 215004, Peoples R China
[3] Tohoku Univ, Fracture & Reliabil Res Inst, Aoba Ku, 6-6-01 Aoba Aramaki, Sendai, Miyagi 9808579, Japan
来源：
SURFACE & COATINGS TECHNOLOGY | 2018年 / 344卷
关键词：
Thermal aging; Stainless steel weld overlay cladding; Spinodal decomposition; Mechanical property; Intergranular corrosion; SMALL PUNCH TEST; TRANSMISSION ELECTRON-MICROSCOPY; REACTOR PRESSURE-VESSELS; G-PHASE PRECIPITATION; LOW-TEMPERATURE; PITTING CORROSION; EMBRITTLEMENT; FERRITE; MICROSTRUCTURE; RESISTANCE;
D O I：
10.1016/j.surfcoat.2018.02.046
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
An investigation on mechanical property and electrochemical behavior of the cladding materials aged at 400 degrees C for different times was carried out by small punch test (SPT) and double loop electrochemical potentiokinetic reactivation (DL-EPR) test. The results showed that thermal aging contributed to spinodal decomposition and G-phase formation in the aged ferrite phase, as well as increase of nano-hardness of ferrite phase. The SP energy by the small punch tests decreased with increase of thermal aging time, which was related to the lattice distortions in G-phase and aged ferrite phase and their interactions with dislocations during deformation process. Thermal aging promoted corrosion and intergranular corrosion susceptibility of the cladding materials. Combined effects of G-phase and spinodal decomposition lowered intergranular corrosion resistance of the cladding material.
引用
收藏
页码：111 / 120
页数：10
相关论文
共 38 条
[1]   Critical evaluation of the small punch test as a screening procedure for mechanical properties [J].
Altstadt, E. ;
Ge, H. E. ;
Kuksenko, V. ;
Serrano, M. ;
Houska, M. ;
Lasan, M. ;
Bruchhausen, M. ;
Lapetite, J. -M. ;
Dai, Y. .
JOURNAL OF NUCLEAR MATERIALS, 2016, 472 :186-195
[2]   Microstructure and electrochemical behavior of stainless steel weld overlay cladding exposed to post weld heat treatment [J].
Cao, X. Y. ;
Zhu, P. ;
Liu, T. G. ;
Lu, Y. H. ;
Shoji, T. .
JOURNAL OF MATERIALS RESEARCH, 2017, 32 (04) :852-862
[3]   Low temperature thermal aging of austenitic stainless steel welds: Kinetics and effects on mechanical properties [J].
Chandra, K. ;
Kain, Vivekanand ;
Bhutani, Vikas ;
Raja, V. S. ;
Tewari, R. ;
Dey, G. K. ;
Chakravartty, J. K. .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2012, 534 :163-175
[4]   Low temperature thermal ageing embrittlement of austenitic stainless steel welds and its electrochemical assessment [J].
Chandra, K. ;
Kain, Vivekanand ;
Raja, V. S. ;
Tewari, R. ;
Dey, G. K. .
CORROSION SCIENCE, 2012, 54 :278-290
[5]   Low temperature embrittlement of duplex stainless steel: Correlation between mechanical and electrochemical behavior [J].
Chandra, K. ;
Singhal, Rahul ;
Kain, V. ;
Raja, V. S. .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2010, 527 (16-17) :3904-3912
[6]   Evaluation of thermal aging embrittlement in CF8 duplex stainless steel by small punch test [J].
Cheon, JS ;
Kim, IS .
JOURNAL OF NUCLEAR MATERIALS, 2000, 278 (01) :96-103
[7]  
CHUNG HM, 1990, MATER SCI TECH SER, V6, P249, DOI 10.1179/026708390790191170
[8]   Use of the small punch test to determine the ductile-to-brittle transition temperature of structural steels [J].
Contreras, M. A. ;
Rodriguez, C. ;
Belzunce, F. J. ;
Betegon, C. .
FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES, 2008, 31 (09) :727-737
[9]   Influence of long-term low-temperature aging on the microhardness and corrosion properties of duplex stainless steel [J].
Della Rovere, C. A. ;
Santos, F. S. ;
Silva, R. ;
Souza, C. A. C. ;
Kuri, S. E. .
CORROSION SCIENCE, 2013, 68 :84-90
[10]   Estimation of the mechanical properties of metallic materials by means of the small punch test [J].
Garcia, T. E. ;
Rodriguez, C. ;
Belzunce, F. J. ;
Suarez, C. .
JOURNAL OF ALLOYS AND COMPOUNDS, 2014, 582 :708-717
1234