Failure analysis of coal pulverizer mill shaft

Parida, N and Tarafder, S and Das, Swapan K and Kumar, P and Das, Goutam and Ranganath, V R and Bhattacharya, D K (2003) Failure analysis of coal pulverizer mill shaft. Engineering Failure Analysis, 10 (6). pp. 733-744.

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Failure of a ball and race type coal pulverizer mill shaft has been analysed. It was found that the shaft, made of EN 25 steel, failed by fatigue. The fatigue cracks originated from the keyway area, unusually from the top edge. The presence of elongated manganese sulphide inclusions due to improper heat treatment had reduced the ductility and CVN toughness of the material, and thus made the material more prone to failure.

Item Type:Article
Official URL/DOI:
Uncontrolled Keywords:Shafts; Stress concentrations; Non-destructive inspection; Heat treatment; Fatigue failure
Divisions:Material Science and Technology
ID Code:269
Deposited On:16 Nov 2009 15:36
Last Modified:07 Feb 2012 14:48
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