Accession Number:

ADA229735

Title:

Load Sharing of the Phases in 1080 Steel During Low Cycle Fatigue

Descriptive Note:

Technical rept.

Corporate Author:

NORTHWESTERN UNIV EVANSTON IL DEPT OF MATERIALS SCIENCE

Personal Author(s):

Report Date:

1990-11-01

Pagination or Media Count:

31.0

Abstract:

By means of x-ray diffraction, the stress response of the individual phases in a 1080 steel were measured. Specimens with pearlitic, spheroidal, and tempered martensitic microstructures were subjected to low cycle fatigue and the stress strain hysteresis loops were separated into components for the carbide and matrix phases. These results show that as the material yields in both tension and compression the carbides take a higher fraction of the load and thus the stress range experienced by the carbide phase is much higher than the matrix during low cycle fatigue.

Subject Categories:

  • Metallurgy and Metallography
  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE