Paper Title:
The Effect of Vacuum Thermal Cycling on LF6 Aluminium Alloy Welded Joints
  Abstract

The investigation aimed at the invalidation mechanism analysis and reliability evaluation of aluminum alloy welded joint under space environment will provide spaceflight designing epartments and manufactures with important technology gist and data so as to greatly reduce paceflights manufactured cost and improve spaceflight working reliability. In this paper, the tensile properties and microstructures of LF6 aluminum alloy welded joint under vacuum thermal cycling have been studied by means of vacuum thermal cycling system. The influence of vacuum thermal cycling on the tensile properties of the welded joint has investigated. Results show that the strength and the enlongation reach their maximum values at about 75 times cycling. The changes of the tensile properties are regarded as resulted from the changes of grain and the motion of dislocation.

  Info
Periodical
Key Engineering Materials (Volumes 297-300)
Edited by
Young-Jin Kim, Dong-Ho Bae and Yun-Jae Kim
Pages
2843-2846
DOI
10.4028/www.scientific.net/KEM.297-300.2843
Citation
J. T. Niu, W. Guo, Y. L. Guo, Q. C. Meng, "The Effect of Vacuum Thermal Cycling on LF6 Aluminium Alloy Welded Joints ", Key Engineering Materials, Vols. 297-300, pp. 2843-2846, 2005
Online since
November 2005
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Price
$32.00
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