Accession Number:

AD0408604

Title:

FRACTURE OF METALS

Descriptive Note:

Interim rept., 22 Mar-22 June 1963

Corporate Author:

IIT RESEARCH INST CHICAGO IL

Personal Author(s):

Report Date:

1963-07-02

Pagination or Media Count:

21.0

Abstract:

Studies are in progress toward understanding the mechanism of delayed failure in the presence of low-melting liquid metals. Experiments utilize age- hardened beryllium copper wetted with mercury. It is shown that during the time delay period between application of sustained stress to wetted samples and the occurrence of failure, cracks can only be detected during the last minute or fraction thereof. The indications are that during the long preceding period, mercury diffuses into the surface developing a state of what is equivalent to surface age hardening.

Subject Categories:

  • Properties of Metals and Alloys

Distribution Statement:

APPROVED FOR PUBLIC RELEASE