ISSN: 1945-7553
CODEN: JTEVAB
Page Count: 7

Isochronous Relaxation Curves for Type 304 Stainless Steel After Monotonic and Cyclic Strain

Swindeman, RW
MetallurgistMember of ASTM, Metals and Ceramics Division, Oak Ridge National Laboratory, Oak Ridge, Tenn.

Abstract

Relaxation tests to 100 h were performed on Type 304 stainless steel in the temperature range 480 to 650°C and were used to develop isochronous relaxation curves. Behavior after monotonic and cyclic strain was compared. Relaxation differed only slightly as a consequence of the type of previous strain, provided that plastic flow preceded the relaxation period. We observed that the short-time relaxation behavior did not manifest strong heat-to-heat variation.

Keywords:
stress relaxation, stress strain diagrams, austenitic stainless steels, high temperature tests

Paper ID: JTE11380J
DOI: 10.1520/JTE11380J
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