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Congratulations MintJulep on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!
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Heat Treatment of 1144
Hello All, I have a situation where a batch of parts (highly re-used specialized M12 to M14 sized hex nuts) are undergoing brittle failure in initial tightening cycles (fail in the 2nd to 5th tightening cycles). My spec calls for 34-37 HRC and the parts came in at 41-42 HRC, although the...- mrbebu
- Thread
- Replies: 20
- Forum: Metal and Metallurgy engineering
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Failure Mode of Fastener...
Hello all, Experienced fastener failures recently and wanted to get some input as to what could've been the cause. Before I give more context and detail, I would just like to see what the trained eyes of this forum have to says solely in regards to the pattern. Pics are of the same...- mrbebu
- Thread
- Replies: 19
- Forum: Welding, Bonding & Fastener engineering
