Effect of microstructural stability on creep behavior of 47XD TiAl alloys with fine-grained fully lamellar structure

被引：42
|
作者：
Zhu, HL
Seo, DY
Maruyama, K
Au, P
机构：
[1] Tohoku Univ, Grad Sch Environm Sci, Aoba Ku, Sendai, Miyagi 9808579, Japan
[2] Natl Res Council Canada, Inst Aerosp Res, Struct Mat & Propuls Lab, Ottawa, ON K1A 0R6, Canada
来源：
SCRIPTA MATERIALIA | 2005年 / 52卷 / 01期
关键词：
XD TiAl alloys; heat treatment; fully lamellar microstructure; microstructural stability; creep;
D O I：
10.1016/j.scriptamat.2004.08.027
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Microstructure characteristics after heat treatments and microstructural stability involving thermal stability and mechanical stability during creep deformation are investigated in a Ti-47Al-2Nb-2Mn + 0.8vol.%TiB2 alloy. In addition to good thermal stability, good mechanical stability is found to be another important factor to improve the creep resistance of the fine-grained fully lamellar structure (FGFL) in terms of short and long-term creep. (C) 2004 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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页码：45 / 50
页数：6
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