PRECIPITATION MECHANISMS AND SUBSEQUENT HARDENING KINETICS IN THE BETA-CEZ ALLOY

被引：2

作者：

COMBRES, Y

BECHET, J

VASSEL, A

机构：

[1] CNAM,MET LAB,F-75003 PARIS,FRANCE

[2] OFF NATL ETUD & RECH AEROSP,DIRECT MAT,F-92322 CHATILLON,FRANCE

来源：

JOURNAL DE PHYSIQUE IV | 1993年 / 3卷 / C7期

关键词：

D O I：

10.1051/jp4:1993727

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The beta-CEZ alloy : Ti-5%Al-2%Sn-4%Zr-4%Mo-2%Cr-1%Fe is a near beta titanium alloy. Since its processing routes include heat treatment (consisting of solution treatment and ageing), it has been decided to study the influence of the beta phase stability on a phase precipitation and hardening kinetics. Small sized specimens, coming from industrial heats, have been heat treated above and below the beta transus, and then water quenched. Therefore, several degree of beta stability are obtained. When it is increased (i.e. the solution treatment temperature is lowered), alpha or omega phases precipitations are delayed, as well as the hardening phenomena. Moreover, the omega stability domain is reduced. The mechanisms of alpha or omega precipitation are discussed, and related to the hardening kinetics.

引用

页码：171 / 176

页数：6