Paper Title:
Research of Fatigue Fracture on Fillet Welded Joints Made of FV520B
  Abstract

The fatigue parameters of welded joints made of FV520B were obtained considering the real operating situations. The fatigue fracture types were divided into two groups. The scanning electron microscope (SEM) was applied to carefully study the fatigue fracture surfaces so as to investigate the fatigue failure mechanisms. The microstructures of the base metal and the weld seam were studied by the metallographic microscope (MM), SEM and TEM in support of the dissimilar mechanical property analysis. The present paper concluded that the fatigue microcracks mainly initiated from the surface near the weld toe and inclusions in the weld seam, the heat-affected zone (HAZ) disappeared due to the postweld heat-treatment processes, and that the fatigue resistance of the base metal was better than the weld seam.

  Info
Periodical
Chapter
Chapter 1: Materials Science and Engineering
Edited by
Dongye Sun, Wen-Pei Sung and Ran Chen
Pages
559-563
DOI
10.4028/www.scientific.net/AMM.121-126.559
Citation
J. L. Fan, X. L. Guo, Y. G. Zhao, C. W. Wu, D. W. Deng, "Research of Fatigue Fracture on Fillet Welded Joints Made of FV520B", Applied Mechanics and Materials, Vols. 121-126, pp. 559-563, 2012
Online since
October 2011
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Price
$32.00
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