Stress Corrosion Study of 2A14 Alloy Joint Used on Propellant Tank
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Author:
- LIU Guanri
LIU Guanri
College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073;Beijing Institute of Astronautical Systems Engineering, Beijing 100076
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Search for this author on this site - LEI Yongjun
LEI Yongjun
College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073
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Search for this author on this site - LIU Debo
LIU Debo
Beijing Institute of Astronautical Systems Engineering, Beijing 100076
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Search for this author on this site - CHANG Zhilong
CHANG Zhilong
Beijing Institute of Astronautical Systems Engineering, Beijing 100076
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Search for this author on this site - WANG Weiping
WANG Weiping
Changzheng Machinery Factory Military Representive Office, Chengdu 610100
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Clc Number:
V146.2+1
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Abstract:
In order to study the compatibility of 2A14 alloy joint used on propellant tank, stress corrosion mechanism of aluminum alloy was analysized in this paper. The base metal, FSW joint and VPTIG joint of 2A14-T6 aluminum alloy were chosen to make corrosion experimentation with slow strain rate method. The result shows 2A14 aluminum alloy have stress corrosion tendency in 3.5% NaCl solution. And the corrosion resistance of FSW joint is better than VPTIG joint.
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History
- Received:December 28,2016
- Online: April 15,2017
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