Fracture of Hex Bars During Manufacture

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.

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Bibliographic Details
Published in:Journal of failure analysis and prevention 2016-08, Vol.16 (4), p.533-536
Main Authors: Hassebrock, Joel D., Iwand, Hans C.
Format: Article
Language:English
Subjects:
Bars
Case History > -Peer-Reviewed
Characterization and Evaluation of Materials
Chemistry and Materials Science
Classical Mechanics
Corrosion and Coatings
Cracking (fracturing)
Failure
Failure analysis
Fractography
Fracture mechanics
Heat treatment
Materials Science
Microhardness
Quality Control
Reliability
Safety and Risk
Solid Mechanics
Tribology
Online Access:Get full text
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Description
Summary: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.
ISSN:1547-7029
1728-5674
1864-1245
DOI:10.1007/s11668-016-0142-x