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Journal of Failure Analysis and Prevention

, Volume 19, Issue 6, pp 1691–1697 | Cite as

Failure Analysis of Blowpipe in Blast Furnaces: A Case Study

  • P. Falak
  • I. EbrahimzadehEmail author
  • M. Jamneshan
Technical Article---Peer-Reviewed
  • 23 Downloads

Abstract

Blast furnaces are one of the most common and economical ways to produce pig iron and steel. One of the most important pieces of a blast furnace is the blowpipe which transmits preheated air to the blast furnace. In this investigation, a failure of a blowpipe was performed. XRD and EDS analyses were used for phase and elemental analyses. The fractography and microstructure of the samples were examined by optical and scanning electron microscopy. The results showed that chromium carbide segregation caused embrittlement and fracture at grain boundaries.

Keywords

Blast furnaces Blowpipe Failure engine Case study Chromium carbide 

Notes

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Copyright information

© ASM International 2019

Authors and Affiliations

  1. 1.Advanced Materials Research CenterIslamic Azad University, Najafabad BranchNajafabadIran
  2. 2.Isfahan Steel CompanyIsfahanIran

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