Grain boundary microchemistry and metallurgical characterization of Eurofer'97 after simulated service conditions

被引：38

作者：

Fernández, P ^{[1
]}

García-Mazarío, M ^{[1
]}

Lancha, AM ^{[1
]}

Lapeña, J ^{[1
]}

机构：

[1] CIEMAT, E-28040 Madrid, Spain

来源：

JOURNAL OF NUCLEAR MATERIALS | 2004年 / 329卷

关键词：

D O I：

10.1016/j.jnucmat.2004.04.055

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The aim of this paper is to describe the microstructural investigations, the mechanical properties (hardness, tensile and charpy) and the grain boundary microchemistry studied by Auger electron spectroscopy (AES), of the Eurofer'97 steel aged in the range of temperatures from 400 to 600 degreesC up to 10 000 h. After these thermal aging treatments the steel showed a high microstructural stability, and similar values of hardness, ultimate tensile strength and 0.2% proof stress regardless of the material condition. A slight DBTT increase was observed in the material aged at 600 degreesC for 5000 and 10 000 h. The Auger results showed chromium enrichment at grain boundaries in all material conditions. In addition, phosphorus was detected at the grain boundaries after the aging treatments at 500 degreesC. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：273 / 277

页数：5

共 19 条

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