Effect of Post Weld Heat Treatment on Toughness of Base Metal of Nuclear Reactor Pressure Vessel Steel A533B

被引：0

作者：

Li Yun-liang ^{[1
]}

Zhang Han-qian ^{[1
,2
]}

Fu Li-ming ^{[1
]}

Chen Jiang-biao ^{[1
]}

Li Jin-fu ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, Shanghai 200240, Peoples R China

[2] Baoshan Iron & Steel Co Ltd, Res Inst, Shanghai 201900, Peoples R China

来源：

JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL | 2011年 / 18卷

关键词：

nuclear power plant; pressure vessel; fracture toughness; precipitation phases; FRACTURE;

D O I：

暂无

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The effect of post weld heat treatment (PWHT) on the toughness of nuclear reactor pressure vessel steel was investigated. Fracture toughness (K-JC) and Charpy impact toughness (KVC) were obtained at different temperatures for quenched-tempered (QT) and PWHT A533B steel plates, respectively. The results show that PWHT increases the ductile-brittle transition temperature, and decreases the K-JC and KVC. By using SEM and Electron probe micro-analyzer (EPMA), it is found that the size of the precipitation phases increased and molybdenum precipitated during PWHT respectively. The relationship between the size of the precipitation phases and the fracture toughness are analyzed and the influence of microstructure is also briefly discussed.

引用

页码：412 / 416

页数：5

共 7 条

[1]

[Anonymous], E192109C ASTM

[2] EFFECTS OF AUSTENITIZATION HEAT-TREATMENT ON THE FRACTURE-RESISTANCE AND TEMPER EMBRITTLEMENT OF MNMONI STEELS [J].

DRUCE, SG .

ACTA METALLURGICA, 1986, 34 (02) :219-232

[3] Effect of PWHT cycles on fatigue crack growth and toughness of quenched and tempered pressure vessel ateels [J].

Sterjovski, Z ;

Carr, DG ;

Dunne, DP ;

Ambrose, S .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2005, 391 (1-2) :256-263

[4] Some issues by using the master curve concept [J].

Viehrig, HW ;

Boehmert, J ;

Dzugan, J .

NUCLEAR ENGINEERING AND DESIGN, 2002, 212 (1-3) :115-124

[5] Structural integrity assessment aspects of the Master Curve methodology [J].

Wallin, Kim .

ENGINEERING FRACTURE MECHANICS, 2010, 77 (02) :285-292

[6] On the statistical analysis of local fracture stresses in notched bars [J].

Wu, SJ ;

Knott, JF .

JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS, 2004, 52 (04) :907-924

[7] Cleavage fracture in bainitic and martensitic microstructures [J].

Zhang, XZ ;

Knott, JF .

ACTA MATERIALIA, 1999, 47 (12) :3483-3495

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