INFLUENCE OF COOLING RATE IN THE PROCESS OF HARDENING ON THE AGING AND FORMATION OF THE MECHANICAL CHARACTERISTICS OF VT22 TITANIUM ALLOY

被引：8

作者：

Ivasyshyn, O. M. ^{[1
]}

Markovs'kyi, P. E. ^{[1
]}

Havrysh, I. M. ^{[1
,2
]}

Karasevs'ka, O. P. ^{[1
]}

机构：

[1] Ukrainian Natl Acad Sci, Kurdyumov Inst Met Phys, Kiev, Ukraine

[2] ANTONOV State Enterprise, Kiev, Ukraine

来源：

MATERIALS SCIENCE | 2014年 / 50卷 / 01期

关键词：

VT22 titanium alloy; hardening heat treatment; cooling rate; aging; mechanical properties;

D O I：

10.1007/s11003-014-9692-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We study the influence of the rate of cooling from the temperature of solid-beta -solution treatment on the mechanism of decomposition of the metastable beta-phase of VT22 titanium alloy under the conditions of subsequent aging, its final microstructure, and mechanical properties. The procedure of hardening in water increases the number of point defects, which leads to the decomposition of the metastable beta-phase with the formation of intermediate omega- and alpha ''(alpha') -phases. As a result, the mechanical characteristics of alloys increase due to the formation of more homogeneous and more dispersed microstructures.

引用

页码：62 / 69

页数：8

共 9 条

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