Microstructure and mechanical properties of a β Nb-Ti based alloy

被引：13

作者：

Allameh, SM

Hayes, RW

Li, M

Loria, EA

Srolovitz, DJ

Soboyejo, WO

机构：

[1] Princeton Mat Inst, Dept Mech & Aerosp Engn, Skillman, NJ 08558 USA

[2] Met Technol Inc, Northridge, CA 91324 USA

[3] Specta Phys Lasers Inc, Mountain View, CA 94043 USA

[4] Reference Met Co, Bridgeville, PA 15017 USA

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2002年 / 328卷 / 1-2期

关键词：

micromechanisms; microstructure; recrystallization;

D O I：

10.1016/S0921-5093(01)01675-6

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

This paper presents the results of a study of microstructure and mechanical properties (tensile and creep behavior) of a multicomponent body-centered-cubic Nb-35Ti-6AI-5Cr-8V-1W-0.5Mo-0.3Hf-0.5C alloy (compositions quoted in atomic% unless stated otherwise). The double extruded material is shown to have a Van Gogh Sky microstructure that is formed as a result of the combined effects of microsegregation and deformation gradients, The effects of recrystallization heat treatments on microstructure were examined in an effort to produce a fully recrystallized microstructure, The changes in tensile properties and fracture mechanisms at different temperatures (27-704 degreesC) are discussed for material in fully recrystallized condition. The micromechanisms of creep deformation at 704 degreesC are also elucidated for the fully recrystallized condition. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：122 / 132

页数：11

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