Oxide properties of deformed Alloy 690TT in caustic solution at high temperature

被引：26

作者：

Wang, X. Y. ^{[1
]}

Li, Z. H. ^{[1
]}

Bai, Y. K. ^{[2
]}

Sun, C. ^{[2
]}

Wang, K. ^{[2
]}

Liu, T. G. ^{[1
]}

Lu, Y. H. ^{[1
]}

Shoji, T. ^{[1
]}

机构：

[1] Univ Sci & Technol Beijing, Natl Ctr Mat Serv Safety, Beijing 100083, Peoples R China

[2] State Power Investment Corp Res Inst, Inst Nucl Fuel & Mat, Beijing 102209, Peoples R China

来源：

CORROSION SCIENCE | 2020年 / 174卷

基金：

中国国家自然科学基金;

关键词：

Alloy; 690TT; Caustic solution; Corrosion; TEM; STRESS-CORROSION CRACKING; PRESSURIZED-WATER REACTORS; INTERNAL OXIDATION; QUANTITATIVE ASSESSMENT; SECONDARY-SIDE; BEHAVIOR; FILMS; SUBMODES;

D O I：

10.1016/j.corsci.2020.108806

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Oxide properties and growth mechanism of deformed Alloy 690 T T SG tube in caustic solution at high temperature were investigated. The results indicated that the oxide film was comprised of the surface oxide layer and the inner oxide layer. The surface oxide layer exhibited a double layer structure with semi-coherent surface Ni-rich phases and subsurface Fe-rich phase. The inner oxide layer exhibited a multilayered structure: outermost large-sized NiO particle layer, transitional mixed Cr-rich spinel, NiO and Ni layer and inner Cr2O3 layer. Furthermore, some preferential oxidation channels extended along the grain boundaries and deformation bands inward respectively.

引用

页数：11

共 30 条

[1]

[Anonymous], 1983, NP3137 EPRI

[2]

[Anonymous], 1970, OXID MET, DOI DOI 10.1007/BF00603582

[3]

ASAMI K, 1978, CORROS SCI, V18, P125, DOI 10.1016/S0010-938X(78)80083-3

[4] Effects of Nitrogen Addition on Microstructure and Grain Boundary Microchemistry of Inconel Alloy 690 [J].

Chen Bo ;

Hao Xianchao ;

Ma Yingche ;

Cha Xiangdong ;

Liu Kui .

ACTA METALLURGICA SINICA, 2017, 53 (08) :983-990

[5] INTERNAL OXIDATION OF AG-IN ALLOYS - STRESS RELIEF AND THE INFLUENCE OF IMPOSED STRAIN [J].

GURUSWAMY, S ;

PARK, SM ;

HIRTH, JP ;

RAPP, RA .

OXIDATION OF METALS, 1986, 26 (1-2) :77-100

[6]

Hu Y., 2015, MATER CORROS, V63, P238

[7] Electrochemical properties and growth mechanism of passive films on Alloy 690 in high-temperature alkaline environments [J].

Huang, Junbo ;

Wu, Xinqiang ;

Han, En-Hou .

CORROSION SCIENCE, 2010, 52 (10) :3444-3452

[8] Oxide properties and stress corrosion cracking behaviour for Alloy 600 in leaded caustic solutions at high temperature [J].

Kim, Dong-Jin ;

Kwon, Hyuk Chul ;

Kim, Hyun Wook ;

Hwang, Seong Sik ;

Kim, Hong Pyo .

CORROSION SCIENCE, 2011, 53 (04) :1247-1253

[9] Effects of chemical compounds on the stress corrosion cracking of steam generator tubing materials in a caustic solution [J].

Kim, UC ;

Kim, KM ;

Lee, EH .

JOURNAL OF NUCLEAR MATERIALS, 2005, 341 (2-3) :169-174

[10] The effect of grain boundary structure on the intergranular degradation behavior of solution annealed alloy 690 in high temperature, hydrogenated water [J].

Kuang, Wenjun ;

Was, Gary S. .

ACTA MATERIALIA, 2020, 182 :120-130

← 1 2 3 →