Journal of Failure Analysis and Prevention

, Volume 16, Issue 4, pp 533–536 | Cite as

Fracture of Hex Bars During Manufacture

Case History---Peer-Reviewed


A manufacturer of hex bars experienced occasional post heat treatment cracking. Metallography, SEM fractography, and microhardness testing demonstrated that quench cracking was the cause of failure. The manufacturer had the heat treatment modified in order to eliminate the cause of failure.


Heat treated Quench cracking Steel microstructure 

Copyright information

© ASM International 2016

Authors and Affiliations

  1. 1.Engineering Systems, Inc – NebraskaOmahaUSA

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