Accession Number:

ADA024961

Title:

Phase Instability during Low Cycle Fatigue of Steel.

Descriptive Note:

Final rept. 15 Sep 72-31 Jan 76,

Corporate Author:

ILLINOIS UNIV AT URBANA-CHAMPAIGN

Personal Author(s):

Report Date:

1976-03-31

Pagination or Media Count:

9.0

Abstract:

Studies of the relationship between martensitic transformation and low cycle fatigue have been carried out with a variety of related austenitic stainless steels. In addition to using composition as a variable, other effects such as test temperature, heat treatment and loading program were studied. Fatigue life under controlled strain amplitude conditions was determined, while the amount of alpha martensite was continuously monitored. Optical, SEM and TEM metallographic results were used to interpret the mechanical behavior. Some studies on strain aging vs. cyclic deformation of iron and mild steel were also carried out. Author

Subject Categories:

  • Properties of Metals and Alloys

Distribution Statement:

APPROVED FOR PUBLIC RELEASE