Journal of Failure Analysis and Prevention

, Volume 17, Issue 4, pp 624–631 | Cite as

Catastrophic Failure of a Steel Chimney in a Lime Plant

  • Suman Mukhopadhyay
  • Goutam Mukhopadhyay
  • Sandip Bhattacharyya
Case History---Peer-Reviewed
  • 77 Downloads

Abstract

Failure analysis of a steel chimney used in a lime plant was carried out. The chimney broke from two different locations during a storm. During the site visit, it was observed that the chimney was dislodged from weld joints. The chimney was made up of hot rolled mild steel plates. Investigations were carried out on the failed chimney plate and welding between plates. The investigation consists of visual observation, chemical analysis, characterization of macro- and microstructures, measurement of hardness, tensile property tests and energy-dispersive spectroscopy (EDS). Calculation of wind load at the location of breakage was also carried out. EDS analysis revealed entrapment of slag inside weld. Overall analysis suggested that the failure took place due to selection of improper reconditioning technique as well as poor workmanship in welding.

Keywords

Chimney Lime plant EDS 

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Copyright information

© ASM International 2017

Authors and Affiliations

  • Suman Mukhopadhyay
    • 1
  • Goutam Mukhopadhyay
    • 1
  • Sandip Bhattacharyya
    • 1
  1. 1.R&D and Scientific ServicesTata Steel LimitedJamshedpurIndia

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