Morphology of oxide particles in ODS austenitic stainless steel

被引：49

作者：

Oka, Hiroshi ^{[1
]}

Watanabe, Masashi ^{[2
]}

Hashimoto, Naoyuki ^{[1
]}

Ohnuki, Somei ^{[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, Naka, Ibaraki 3191194, Japan

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

来源：

JOURNAL OF NUCLEAR MATERIALS | 2013年 / 442卷 / 1-3期

基金：

日本学术振兴会;

关键词：

DIFFRACTION CONTRAST; PYROCHLORES; IRRADIATION;

D O I：

10.1016/j.jnucmat.2013.04.073

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this study, identification of the crystal structure and analysis of the orientation relationship of oxide particles in an oxide dispersion strengthened austenitic stainless steel was carried out. High resolution transmission electron microscopy (HRTEM) and energy dispersive spectroscopy showed that most of the oxide particles had a faceted shape and consisted of a complex oxide, the anion-deficient fluorite structure Y2Hf2O7. Selected area diffraction patterns and HRTEM indicated that the faceted oxide particle has a cube-on-cube orientation relationship with the surrounding matrix. In addition, strain fields were observed around the oxide particle with given reflection conditions, indicating that it surrounds the oxide particle. The observed strain fields would affect glide dislocation pinning and the migration of irradiation-induced point defects. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：S164 / S168

页数：5

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