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Al7050 합금의 인장-압축거동과 성형성 간 상관관계Correlation Between Tensile-compressive Behavior and Formability of Al7050 Alloy

Other Titles
Correlation Between Tensile-compressive Behavior and Formability of Al7050 Alloy
Authors
배동화오주희정찬욱김정기
Issue Date
2022
Publisher
한국소성가공학회
Keywords
Aluminum alloy; Deformation behavior; Processing map; Formability
Citation
소성가공, v.31, no.2, pp.64 - 72
Indexed
KCI
Journal Title
소성가공
Volume
31
Number
2
Start Page
64
End Page
72
URI
https://scholarworks.bwise.kr/gnu/handle/sw.gnu/2387
DOI
10.5228/KSTP.2022.31.2.64
ISSN
1225-696X
Abstract
Since aluminum alloys experience both tensile and compression deformation modes during forming process, it is important to understand the role of deformation mode on the hot formability of metallic alloys. In the present work, the hot formability of Al7050 alloy was investigated by conducting both tensile and Gleeble tests at various temperatures and strain rates. Processing maps representing low efficiency regions were observed at low temperature and high strain rate in both tensile and compressive deformation modes while the maximum efficiency regions depended on different deformation modes. Moreover, samples tested at stable processing conditions presented a smaller pore fraction than those at instable conditions that resulted in crack initiation during plastic deformation. This result shows that different deformation modes during plastic forming can affect formability changes of metallic alloys. Understanding of tension-compression behaviors will help us solve this problem.
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공학계열 > Dept.of Materials Engineering and Convergence Technology > Journal Articles

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