Deformation mechanisms of Ti-6Al-4V alloy with a martensitic microstructure subjected to oligocyclic fatigue

被引：55

作者：

Manero, JM ^{[1
]}

Gil, FJ ^{[1
]}

Planell, JA ^{[1
]}

机构：

[1] Univ Politecn Cataluna, ETSEIB, Dept Mat Sci & Met, Barcelona 08035, Spain

来源：

ACTA MATERIALIA | 2000年 / 48卷 / 13期

关键词：

transmission electron microscopy (TEM); biomaterials; titanium alloys; fatigue; martensite;

D O I：

10.1016/S1359-6454(00)00152-X

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The objective of this work is to characterise the deformation modes when Ti-6Al-4 V alloy with alpha' martensitic structure is subjected to oligocyclic fatigue at various strain amplitudes. It is believed that, unlike pure titanium single crystals at room temperature, {1 (1) over bar 01} twinning occurs in the alpha' martensitic microstructure, because of the factors, such as the prior existence of dislocations or alpha'/alpha' interfaces, which may reduce the activation energy required for the nucleation of {10 (1) over bar 1} twins. (C) 2000 Acta Metallurgica I,lc. Published by Elsevier Science Ltd. All rights reserved.

引用

页码：3353 / 3359

页数：7

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