Paper Title:
A Study on Fatigue Properties of Sc Added Al 2519 Alloy
  Abstract

The high cycle fatigue properties of two kinds of wrought Al 2519 alloys without and with scandium of 0.10% were investigated. The fatigue strength was determined at R = 0.1 under constant amplitude loading conditions in air. The alloy with scandium of 0.10% showed a little lower tensile yield strength and higher fatigue strength values. The fine grained Al-0.10Sc alloy exhibited a higher resistance against fatigue crack nucleation despite the lower yield stress in comparison to the coarse grained Al 2519 alloy. The results can be explained mainly with the microstructural differences between both alloys. This results are due to the presence of coherent Al3 (Sc, Zr) precipitates and a very fine subgrain structure.

  Info
Periodical
Key Engineering Materials (Volumes 297-300)
Edited by
Young-Jin Kim, Dong-Ho Bae and Yun-Jae Kim
Pages
2483-2488
DOI
10.4028/www.scientific.net/KEM.297-300.2483
Citation
U. B. Baek, J. S. Park, I. H. Chung, S. H. Nahm, Y. H. Ma, Y. Y. Lee, "A Study on Fatigue Properties of Sc Added Al 2519 Alloy ", Key Engineering Materials, Vols. 297-300, pp. 2483-2488, 2005
Online since
November 2005
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Price
$32.00
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