Inadvertent Diffusion Bonding During Heat Treatment
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Inadvertent diffusion bonding of workpieces during heat treatment, although relatively well understood, remains a troublesome phenomenon. Metallurgical failure analysts are often called upon to investigate material damages due to heat-treatment damage, including unintentional bonding. Failure analysis investigations of diffusion bonding, which were originally misdiagnosed as being due to other phenomena, are presented in this paper for illustration.
KeywordsMetallurgical investigation Metallography Annealing Diffusion Electron microscopy Failure analysis
The authors would like to acknowledge the assistance of Kurt Santoro and Fred Anderson who helped in preparing some of the metallographic specimens documented herein.