Effect of carbon and niobium on the microstructure and impact toughness of a high silicon 12% Cr ferritic/martensitic heat resistant steel

被引：19

作者：

Ye, Zhongfei ^{[1
]}

Wang, Pei ^{[1
]}

Li, Dianzhong ^{[1
]}

Zhang, Yutuo ^{[2
]}

Li, Yiyi ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China

[2] Shenyang Ligong Univ, Shenyang 110159, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2014年 / 616卷

基金：

中国国家自然科学基金;

关键词：

High silicon 12% Cr ferritic/martensitic steel; Primary NbC; Carbonitride; Thermodynamic calculations; Impact toughness; FERRITIC MARTENSITIC STEELS; MECHANICAL-PROPERTIES; CORROSION-RESISTANCE; CREEP STRENGTH; TEMPERATURE; PRECIPITATION; STABILITY; CARBIDES; BEHAVIOR; FRACTURE;

D O I：

10.1016/j.msea.2014.07.087

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In order to guide the design of 9-12% Cr ferritic/martensitic (F/M) heat resistant steels appropriate for use in accelerator-driven system, the impact toughness and behavior of precipitation of a 12% Cr F/M heat resistant steel containing high C and Si concentrations have been investigated. Particular focus has been given to the interaction of carbon and carbonitride-forming element. Because of the presence of primary NbC and a large amount of M23C6, the impact toughness of the investigated steel was much lower than that of the commercial 9-12% Cr F/M heat resistant steels. The primary NbC crystallizes directly from liquid metal when the Nb concentration is higher than a critical value. The critical value of Nb decreases with increase in the carbon concentration. In addition, the higher content and faster precipitation kinetics of M23C6 in the investigated steel during the tempering heat treatment also lowers the impact toughness. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：12 / 19

页数：8

共 39 条

[1] Effect of Boron on Microstructure and Creep Strength of Advanced Ferritic Power Plant Steels [J].

Abe, Fujio .

11TH INTERNATIONAL CONFERENCE ON THE MECHANICAL BEHAVIOR OF MATERIALS (ICM11), 2011, 10

[2] Mechanical Performance of Ferritic Martensitic Steels for High Dose Applications in Advanced Nuclear Reactors [J].

Anderoglu, Osman ;

Byun, Thak Sang ;

Toloczko, Mychailo ;

Maloy, Stuart A. .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2013, 44A :70-83

[3]

[Anonymous], 2013, E224813 ASTM

[4]

[Anonymous], 2013, Standard Test Methods for Tension Testing of Metallic Materials

[5]

[Anonymous], 2010, A103310 ASTM

[6]

[Anonymous], 2013, A213A213M13 ASTM

[7]

[Anonymous], 2010, E1112004 ASTM

[8] High-temperature corrosion of steels in liquid Pb-Bi alloy [J].

Balbaud-Célérier, F ;

Martinelli, L ;

Terlain, A ;

Ngomsik, A ;

Sanchez, S ;

Picard, G .

HIGH TEMPERATURE CORROSION AND PROTECTION OF MATERIALS 6, PRT 1 AND 2, PROCEEDINGS, 2004, 461-464 :1091-1098

[9] MICROMECHANICAL MODELING OF FRACTURE-TOUGHNESS [J].

BOWEN, P ;

DRUCE, SG ;

KNOTT, JF .

ACTA METALLURGICA, 1987, 35 (07) :1735-1746

[10] Accelerator-driven systems for nuclear waste transmutation [J].

Bowman, CD .

ANNUAL REVIEW OF NUCLEAR AND PARTICLE SCIENCE, 1998, 48 :505-556

← 1 2 3 4 →