SPECIAL FEATURES OF FORMATION OF OMEGA-PHASE IN TITANIUM ALLOYS DUE TO HARDENING

被引：17

作者：

Illarionov, A. G. ^{[1
]}

Popov, A. A. ^{[1
]}

Grib, S. V. ^{[1
]}

Elkina, O. A. ^{[2
]}

机构：

[1] Ural Fed Univ, Ekaterinburg, Russia

[2] Russian Acad Sci, Ural Branch, Inst Met Phys, Ekaterinburg, Russia

来源：

METAL SCIENCE AND HEAT TREATMENT | 2011年 / 52卷 / 9-10期

关键词：

titanium alloys; phase transformations; omega-phase; hardening; electron concentration; alloying with hydrogen; TRANSFORMATIONS; PRESSURE;

D O I：

10.1007/s11041-010-9306-6

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Special features of formation of athermal omega-phase in titanium alloys of the Ti - Nb, Ti - V, and Ti2AlNb-base systems are considered from the standpoint of changes in the electron concentration of the beta-solid solution. The conditions of formation of omega-phase with anomalous ("raft") morphology are determined. A dislocation model explaining the morphological features is suggested. The effect of hydrogen alloying of titanium alloys on the process of formation of omega-phase in hardening is described. A method for computing electron concentration for titanium alloys with hydrogen is suggested.

引用

页码：493 / 498

页数：6

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