Microstructure and tensile and Charpy impact properties of reduced activation ferritic-martensitic steel with Ti

被引：39

作者：

Lee, Chang-Hoon ^{[1
]}

Park, Jun-Young ^{[1
]}

Seol, Woo-Kyoung ^{[1
,2
]}

Moon, Joonoh ^{[1
]}

Lee, Tae-Ho ^{[1
]}

Kang, Nam Hyun ^{[2
]}

Kim, Hyoung Chan ^{[3
]}

机构：

[1] Korea Inst Mat Sci, Chang Won 642831, South Korea

[2] Pusan Natl Univ, Busan 609735, South Korea

[3] Natl Fus Res Inst, Daejeon 305806, South Korea

来源：

FUSION ENGINEERING AND DESIGN | 2017年 / 124卷

基金：

新加坡国家研究基金会;

关键词：

RAFM steel; Ti; (Ti; M)C; M23C6; DBTT; NANOMETER-SIZED CARBIDES; MECHANICAL-PROPERTIES; CLEAVAGE FRACTURE; STRENGTH; MO;

D O I：

10.1016/j.fusengdes.2017.05.085

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

The influence of Ti, a low activation alloying element, on the microstructure and mechanical properties was investigated of reduced activation ferritic-martensitic (RAFM) steel containing Ti instead of Ta, The steel design with Ti was based on thermodynamic calculations of phase equilibria. All samples were normalized at 1000 degrees C for 1 h and tempered at 650 degrees C and 750 degrees C for 2h, which resulted in tempered martensite with M23C6 carbides and MX precipitates. Ti-added RAFM steel tempered at 650 degrees C has fine M23C6 carbides and nano-sized (Ti,W)C particles with about 20 nm, leading to a superior balance of strength and impact toughness, compared to the previous RAFM steels with Ta. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：953 / 957

页数：5

共 17 条

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