Paper Title:
Failure Analysis of U71Mn Rail Welded Joints
  Abstract

The fracture of U71Mn rail welded butt joints on flash welding was analyzed by using visual observation, metallographic microscope, SEM and EDS from macro to micro.The results show that, the transverse fracture is rail oval flaw and the fracture mechanism of the rail is fatigue-crack propagation. The fatigue cracking is caused by silicate-non-metallic inclusions which are residues in the welded joints after flash welding.

  Info
Periodical
Chapter
Chapter 4: Mechanical Behavior & Fracture
Edited by
Prasad Yarlagadda, Yun-Hae Kim, Zhijiu Ai and Xiaodong Zhang
Pages
665-669
DOI
10.4028/www.scientific.net/AMR.337.665
Citation
C. P. Ma, Y. Nie, L. J. Wang, Y. H. Zhu, Y. Liu, H. Chen, "Failure Analysis of U71Mn Rail Welded Joints", Advanced Materials Research, Vol. 337, pp. 665-669, 2011
Online since
September 2011
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Price
$32.00
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