Along similar lines on the behaviour of metal when welding, the story of Salesforce Transit Centre in SF:
https://www.popularmechanics.com/science/a29329189/salesforce-transit-center-cracks/
TL;DR: opening of new building delayed after structural cracks found in two beams. Entire structure checked and no further issues found - cause was incorrect post-weld treatment resulting in micro-cracks that resulted in brittle cracking when placed under load.
Biting the hand that feeds IT
