X-ray elastic constant determination and microstresses of α2 phase of a two-phase TiAl-based intermetallic alloy

被引：16

作者：

Guo, FA

Ji, V

François, M

Zhang, YG

机构：

[1] ENSAM, CNRS, ESA 8006, LM3, F-75013 Paris, France

[2] Univ Technol Troyes, LASMIS, F-10010 Troyes, France

[3] Beijing Univ Aeronaut & Astronaut, Dept Mat Sci & Engn, Beijing 100083, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2003年 / 341卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

TiAl-based alloy; residual and internal stresses; mechanical properties; X-ray diffraction technique;

D O I：

10.1016/S0921-5093(02)00243-5

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The elastic constants Of alpha(2) phase of a two-phase TiAl-based intermetallic alloy were determined experimentally by X-ray diffraction method. From these results, the residual stresses and the mechanical state Of alpha(2) phase in the alloy, induced by a uniaxial tensile loading, were characterized by X-ray diffraction. It was found that the X-ray elastic constants of alpha(2) phase differ from those of gamma phase and the macroscopic ones, the mechanical state of alpha(2) phase shows a great difference compared with that of gamma phase, and the reasons were discussed. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：182 / 188

页数：7

共 20 条

[1] DEFORMATION PROCESSES RELATED TO INTERFACIAL BOUNDARIES IN 2-PHASE GAMMA-TITANIUM ALUMINIDES [J].