FRACTURE OF METALS.
Abstract
It is shown that the delayed failure of Be-copper wetted with Hg is accelerated at temperatures above room ambient. Conversely, delayed failure is retarded by simple heating in the unstressed condition to temperatures above 80 C before loading. Cumulative weakening can be erased by these thermal treatments. A mechanism for delayed failure is described in terms of grain boundary penetration by Hg to critical depths defined by the Griffith criterion for fast failure. The rate of penetration is moderated by temperature, stress level, and predisposition of infused Hg. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 13, 1963
- Accession Number
- AD0427068
Entities
People
- W. Rostoker
Organizations
- IIT Research Institute