Effects of hot compression and heat treatment on the microstructure and tensile property of Ti-6.5Al-3.5Mo-1.5Zr-0.3Si alloy

被引：50

作者：

Huang, L. J. ^{[1
]}

Geng, L. ^{[1
]}

Li, A. B. ^{[1
]}

Wang, G. S. ^{[1
]}

Cui, X. P. ^{[1
]}

机构：

[1] Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150001, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2008年 / 489卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

Ti-6.5Al-3.5Mo-1.5Zr-0.3Si; hot compression; duplex anneal;

D O I：

10.1016/j.msea.2007.12.034

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The present work investigated the effects of hot compression and heat treatment on the microstructure and tensile property of Ti-6.5Al-3.5Mo-1.5Zr-0.3Si alloy with a widmanstatten microstructure. During hot compression at 995 degrees C, the lamellar a phase in the widmanstatten structure was distorted, and an equiaxed microstructure was obtained by subsequent duplex annealing of the hot-compressed sample. The tensile strength and elongation were significantly improved by hot compressing at 995 degrees C. Duplex annealing treatment resulted in a further increase in ductility at the expense of slight decrease in strength. A good combination of tensile strength (990 MPa) and elongation (12.8%) has been obtained by hot compression at 995 degrees C followed by the duplex annealing treatment. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：330 / 336

页数：7

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