Microstructure and tensile properties of investment cast Ti-46Al-8Nb-1B alloy

被引：48

作者：

Hu, D ^{[1
]}

Mei, JF ^{[1
]}

Wickins, M ^{[1
]}

Harding, RA ^{[1
]}

机构：

[1] Univ Birmingham, Interdisciplinary Res Ctr Mat Proc, Birmingham B15 2TT, W Midlands, England

来源：

SCRIPTA MATERIALIA | 2002年 / 47卷 / 04期

基金：

英国工程与自然科学研究理事会;

关键词：

titanium; intermetallic; casting; microstructure; mechanical properties;

D O I：

10.1016/S1359-6462(02)00140-9

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The size of Nb-enriched TiB precipitates in the investment cast Ti-46AI-8Nb-IB was strongly affected by solidification conditions. The existence of long TiB ribbons was the cause of premature failure of this alloy at room temperature during tensile test. Refining TiB precipitates by fast cooling may improve the room temperature tensile ductility markedly. (C) 2002 Acta Materialia Inc. Published by Elsevier Science Ltd. All rights reserved.

引用

页码：273 / 278

页数：6

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