A low karat gold alloy wedding ring that had been buried in a garden was unearthed recently and found to be brittle and cracked in many places. The cracks were identified as having been caused by stress corrosion. This condition probably resulted from the presence of residual internal stresses which were combined either with perspiration of the wearer or with the fertilizer used in the garden, or both.
Subject
External stress corrosion cracking,
Intergranular stress corrosion cracking,
Metal surfaces,
Internal stress,
Crack propagation,
Transgranular stress corrosion cracking,
Copper alloys,
Chemical composition,
Gold,
Zinc,
Stress corrosion cracking,
Residual stress,
Chloride stress corrosion cracking
Copyright 1955 by the National Association of Corrosion Engineers.
1955
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