A very high cycle fatigue thermal dissipation investigation for titanium alloy TC4

被引：26
|
作者：
Huang, Zhi Yong [1 ]
Wang, Qing Yuan [1 ]
Wagner, Daniele [2 ]
Bathias, Claude [2 ]
机构：
[1] Sichuan Univ, Sch Aeronaut & Astronaut, Chengdu 610064, Peoples R China
[2] Univ ParisOuest Nanterre La Def, Paris, France
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2014年 / 600卷
基金：
中国国家自然科学基金;
关键词：
Titanium alloy; VHCF; Inelastic deformation; Thermal dissipation; Fatigue dispersion; BEHAVIOR; LIMIT;
D O I：
10.1016/j.msea.2014.02.012
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Titanium alloy TC4 is widely used in aeronautics applications where it is subjected to high frequency fatigue loads. Tests are performed to investigate the alloy fatigue behavior sustaining ultrasonic fatigue load in Very High Cycle Fatigue (VHCF) regime. Thermal dissipation for the alloy in 20 kHz frequency is studied and a model is proposed to describe the temperature increment in the framework of thermodynamics by estimation of the anelasticand inelastic thermal dissipation at microscopic active sites in the reference element volume. The failure probability prediction method is used to evaluate the VHCF dispersion based on the two scale model and fatigue thermal dissipation analysis. (c) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：153 / 158
页数：6
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