High strength beta titanium alloys: New design approach

被引：75

作者：

Okulov, I. V. ^{[1
,2
]}

Wendrock, H. ^{[1
]}

Volegov, A. S. ^{[1
,3
]}

Attar, H. ^{[1
,4
]}

Kuehn, U. ^{[1
]}

Skrotzki, W. ^{[5
]}

Eckert, J. ^{[1
,2
]}

机构：

[1] IFW Dresden, D-01069 Dresden, Germany

[2] Tech Univ Dresden, Inst Werkstoffwissensch, D-01062 Dresden, Germany

[3] Ural Fed Univ, Inst Nat Sci, Ekaterinburg 620000, Russia

[4] Edith Cowan Univ, Sch Engn, Perth, WA 6027, Australia

[5] Tech Univ Dresden, Inst Strukturphys, D-01062 Dresden, Germany

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2015年 / 628卷

关键词：

Titanium alloys; Electron microscopy; Mechanical characterization; High strength; Tensile ductility; NANOSTRUCTURE-DENDRITE COMPOSITE; AMORPHOUS MATRIX COMPOSITES; CU-NI ALLOYS; MECHANICAL-PROPERTIES; TI ALLOY; MICROSTRUCTURE; DEPENDENCE; BEHAVIOR;

D O I：

10.1016/j.msea.2015.01.073

中图分类号：

TB3 [工程材料学];

学科分类号：

082905 [生物质能源与材料];

摘要：

A novel approach for development of high strength and ductile beta titanium alloys was proposed and successfully applied. The microstructure of the designed alloys is fully composed of a bcc beta-Ti phase exhibiting dendritic morphology. The new Ti68.8Nb13.6Cr5.1Co6Al6.5 (at%) alloy (BETA(tough) alloy) exhibits a maximum tensile strength of 1290 +/- 50 MPa along with 21 +/- 3% Of fracture strain. The specific energy absorption value upon mechanical deformation of the BETA(tough) alloy exceeds that of Ti-based metallic glass composites and commercial high strength Ti-based alloys. The deformation behavior of the new alloys was correlated with their microstructure by means of in-situ studies of the microstructure evolution upon tensile loading in a scanning electron microscope. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：297 / 302

页数：6

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