Effects of milling process and alloying additions on oxide particle dispersion in austenitic stainless steel

被引：34

作者：

Oka, Hiroshi ^{[1
]}

Watanabe, Masashi ^{[2
]}

Ohnuki, Somei ^{[1
]}

Hashimoto, Naoyuki ^{[1
]}

Yamashita, Shinichiro ^{[3
]}

Ohtsuka, Satoshi ^{[3
]}

机构：

[1] Hokkaido Univ, Fac Engn, Kita Ku, Sapporo, Hokkaido 0608628, Japan

[2] Japan Atom Energy Agcy, Nucl Fuel Cycle Engn Labs, Tokai, Ibaraki 3191194, Japan

[3] Japan Atom Energy Agcy, Oarai Res & Dev Ctr, Oarai, Ibaraki 3111393, Japan

来源：

JOURNAL OF NUCLEAR MATERIALS | 2014年 / 447卷 / 1-3期

基金：

日本学术振兴会;

关键词：

STRENGTHENED FERRITIC STEELS; MECHANICAL-PROPERTIES; IRRADIATION; HARDNESS;

D O I：

10.1016/j.jnucmat.2014.01.025

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

An oxide dispersion strengthened (ODS) austenitic stainless steel was developed by mechanical alloying (MA) of advanced SUS316 stainless steel. A nano-characterization was performed to understand details of the effect of minor alloying elements in the distribution of dispersoids. It is shown that Y2O3 particles dissolve into the austenitic matrix after the MA for 6 h. Annealing at 1073 K or higher temperatures result in a distribution of fine oxide particles in the recrystallized grains in the ODS austenitic stainless steel. Additions of Hafnium or Zirconium led to the distribution of finer oxide particles than in samples without these elements, resulting in an increase in the hardness of the samples. The most effective concentration of Hf and Zr to increase the hardness was 0.6 and 0.2-0.3 wt%, respectively. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：248 / 253

页数：6

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