Cavitation damage incorporating cavity growth in submicrometer-grained titanium alloy

Title
Cavitation damage incorporating cavity growth in submicrometer-grained titanium alloy
Authors
신동혁
Keywords
SEVERE PLASTIC-DEFORMATION; SUPERPLASTIC DEFORMATION; TI-6AL-4V ALLOY; AL-MG; REFINEMENT; ECAP
Issue Date
2009-06
Publisher
MATERIALS RESEARCH SOCIETY
Citation
JOURNAL OF MATERIALS RESEARCH, v. 24, No. 6, Page. 2161-2165
Abstract
A study was made to investigate cavity growth behavior during the superplastic deformation of submicrometer-grained titanium alloy and to compare that to cavity growth in a coarse-grained counterpart. A series of tension tests were performed at a temperature of 973 K and a strain rate of 10(-4) s(-1). Microstructures revealed that both the size and the volume fraction of the cavities obviously decreased as the grain size decreased. Working within the framework provided by creep models for understanding cavity growth behavior, we found the dominant growth mechanism to be superplastic diffusion, which leads to high-tensile ductility in submicrometer-grained titanium alloy.
URI
https://www.cambridge.org/core/journals/journal-of-materials-research/article/cavitation-damage-incorporating-cavity-growth-in-submicrometergrained-titanium-alloy/7F70AD229E32E94B5B7C79FB7607B6AAhttp://repository.hanyang.ac.kr/handle/20.500.11754/76124
ISSN
0884-2914
DOI
http://dx.doi.org/10.1557/JMR.2009.0254
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MATERIALS SCIENCE AND CHEMICAL ENGINEERING(재료화학공학과) > Articles
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