Individual and synergistic influences of microstructural features on intergranular corrosion behavior in extra-low carbon type 304L austenitic stainless steel

被引：48

作者：

Pradhan, S. K. ^{[1
]}

Bhuyan, P. ^{[1
]}

Mandal, S. ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Met & Mat Engn, Kharagpur 721302, W Bengal, India

来源：

CORROSION SCIENCE | 2018年 / 139卷

关键词：

Stainless steel; Polarization; SEM; Weight loss; Effects of strain; Intergranular corrosion; GRAIN-BOUNDARY-CHARACTER; CARBIDE PRECIPITATION; SENSITIZATION BEHAVIOR; CHROMIUM DEPLETION; ENGINEERED MICROSTRUCTURE; FRACTAL ANALYSIS; RESIDUAL STRAIN; ALLOY; 600; 304-STAINLESS-STEEL; DEFORMATION;

D O I：

10.1016/j.corsci.2018.05.014

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The individual and synergistic effects of the microstructural features viz. grain size, residual strain, grain boundary character distribution (GBCD) and its connectivity on intergranular corrosion (IGC) behavior is evaluated in type 304 L stainless steel. Straining accelerated sensitization by promoting chromium carbide precipitation via diffusion through dislocations. Coarse-grained microstructure suppresses IGC by delaying both the onset and progression of sensitization. Microstructure comprising of optimized GBCD exhibits remarkable resistance to IGC owing to the substitution of random high-angle boundaries by Sigma 3 and its variants. Impressively, evidences suggested that GBCD has higher implication than grain size or residual strain in controlling IGC behavior.

引用

页码：319 / 332

页数：14

共 71 条

[1] DEFORMATION EFFECTS ON CHROMIUM DIFFUSIVITY AND GRAIN-BOUNDARY CHROMIUM DEPLETION DEVELOPMENT IN TYPE-316 STAINLESS-STEELS [J].

ADVANI, AH ;

ATTERIDGE, DG ;

MURR, LE ;

BRUEMMER, SM ;

CHELAKARA, R .

SCRIPTA METALLURGICA ET MATERIALIA, 1991, 25 (02) :461-465

[2] On the role of residual strain in controlling sensitisation of twin-boundary engineered type 304 stainless steel [J].

Ahmedabadi, Parag M. ;

Kain, Vivekanand ;

Muralidhar, K. Venkata ;

Samajdar, I. .

JOURNAL OF NUCLEAR MATERIALS, 2013, 432 (1-3) :243-251

[3] Role of grain boundary nature and residual strain in controlling sensitisation of type 304 stainless steel [J].

Ahmedabadi, Parag M. ;

Kain, Vivekanand ;

Dangi, Bhupinder Kumar ;

Samajdar, I. .

CORROSION SCIENCE, 2013, 66 :242-255

[4] Evaluation of the sensitization process in 304 stainless steel strained 50% by cold-rolling [J].

Alvarez, CJ ;

Almanza, E ;

Murr, LE .

JOURNAL OF MATERIALS SCIENCE, 2005, 40 (11) :2965-2969

[5]

[Anonymous], 2008, 12732 BS EN ISO

[6]

[Anonymous], 2014, A262, P1, DOI [10.1520/D0638-14, DOI 10.1520/D0638-14]

[7] Effects of strain and grain size on carbide precipitation and corrosion sensitization behavior in 304 stainless steel [J].

Beltran, R ;

Maldonado, JG ;

Murr, LE ;

Fisher, WW .

ACTA MATERIALIA, 1997, 45 (10) :4351-4360

[8] Suppression of chromium depletion by grain boundary structural change during twin-induced grain boundary engineering of 304 stainless steel [J].

Bi, HY ;

Kokawa, H ;

Wang, ZJ ;

Shimada, M ;

Sato, YS .

SCRIPTA MATERIALIA, 2003, 49 (03) :219-223

[9] STRUCTURE OF HIGH-ANGLE GRAIN BOUNDARIES [J].

BRANDON, DG .

ACTA METALLURGICA, 1966, 14 (11) :1479-&

[10] THE EFFECTS OF DEFORMATION INDUCED MARTENSITE ON THE SENSITIZATION OF AUSTENITIC STAINLESS-STEELS [J].

BRIANT, CL ;

RITTER, AM .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1980, 11 (12) :2009-2017

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