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.

[thumbnail of N._Parida.pdf] PDF
N._Parida.pdf - Published Version
Restricted to NML users only. Others may use ->

Download (879kB) | Request a copy

Abstract

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
Uncontrolled Keywords: Shafts; Stress concentrations; Non-destructive inspection; Heat treatment; Fatigue failure
Subjects: Materials Science > Failure Analysis
Divisions: Material Science and Technology
Depositing User: Users 6 not found.
Date Deposited: 16 Nov 2009 10:06
Last Modified: 07 Feb 2012 09:18
URI: http://eprints.nmlindia.org/id/eprint/269

Actions (login required)

View Item
View Item