Assessment of grain size and lattice parameters of titanium alloy through electromagnetic emission technique

被引：0
|
作者：
Chauhan V.S. [1 ]
Misra A. [2 ]
机构：
[1] School of Engineering, Indian Institute of Technology, Mandi - 175001, Himachal Pradesh
[2] Department of Mechanical Engineering, Birla Institute of Technology, Mesra - 835 215, Ranchi
来源：
International Journal of Microstructure and Materials Properties | 2011年 / 6卷 / 06期
关键词：
CVrack propagation; Electromagnetic radiation; EMR; Grain size; Lattice parameters; Plastic deformation;
D O I：
10.1504/IJMMP.2011.044367
中图分类号：
学科分类号：
摘要：
Effects of variation in grain size and lattice parameters at elevated temperatures on the electromagnetic radiation (EMR) during failure under tension of ASTM B265 Grade 2 titanium have been investigated. The EMR is observed to be anisotropic in nature. The EMR amplitude decreases with increase in grain size. The magnitude of variation depends upon the processing history of specimens. The EMR amplitude decreases exponentially with lattice parameters in titanium while the decrease in EMR frequency is polynomial in nature. The experimental results are in close agreement with the theoretical predications presented in this paper. A comparison with the results reported earlier shows that the nature of EMR responses with lattice parameters is independent of metal crystal structure. These investigations lead to a new technique for the assessment of grain size and lattice parameters in metals. Copyright © 2011 Inderscience Enterprises Ltd.
引用
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页码：486 / 506
页数：20
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