Improvement of the fatigue performance of an ultrafine-grained Nb-Zr alloy by nano-sized precipitates formed by internal oxidation

被引：22

作者：

Niendorf, T. ^{[1
]}

Maier, H. J. ^{[1
]}

Canadinc, D. ^{[2
]}

Yapici, G. G. ^{[3
]}

Karaman, I. ^{[3
]}

机构：

[1] Univ Gesamthsch Paderborn, Lehrstuhl Werkstoffkunde Mat Sci, D-33095 Paderborn, Germany

[2] Koc Univ, Dept Mech Engn, TR-34450 Istanbul, Turkey

[3] Texas A&M Univ, Dept Mech Engn, College Stn, TX 77843 USA

来源：

SCRIPTA MATERIALIA | 2008年 / 58卷 / 07期

基金：

美国国家科学基金会;

关键词：

Nb-Zr; ultrafine-grained materials; nano; internal oxidation; zirconium oxide;

D O I：

10.1016/j.scriptamat.2007.11.015

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The formation of nano-sized precipitates in an ultrafine-grained Nb-Zr alloy was investigated. ZrO2 precipitates induced by internal oxidation during heat treatment at low homologous temperatures significantly intensify the hardness of the surface layer without deterioration of the surface quality, and thus significantly improve the fatigue performance. (C) 2007 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：571 / 574

页数：4

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