A general review of chevron cracking causes with two unusual cases at Gerdau Ameristeel Beaumont

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Chevron cracking is a well-recognized type of fracture during wiredrawing, but its many causes are not well understood. This paper reviews known causes in a summary chart, together with the investigations that implicated two very unusual causes: nitrogen-induced microvoids and pulsating back-pull stress variation caused during wiredrawing.

Description

Chevron cracking is a well-recognized type of fracture during wiredrawing, but its many causes are not well understood. This paper reviews known causes in a summary chart, together with the investigations that implicated two very unusual causes: nitrogen-induced microvoids and pulsating back-pull stress variation caused during wiredrawing.

Additional information

Author(s)

Daniel Lanham, Peter Power, and Bhaskar Yalamanchili, Gerdau Ameristeel, USA

Publication/Event/Pages

Paper presented at WAI's 76th Annual Convention (Wire Expo) in Boston, May, 2006.

Year

2006