Hardening Behavior of a 304 Stainless Steel Containing Deformation-Induced Martensite during Static Strain Aging

Sang Hun Lee; Jeom Yong Choi; Won Jong Nam

doi:10.2320/matertrans.MRP2008416

This article has now been updated. Please use the final version.

Hardening Behavior of a 304 Stainless Steel Containing Deformation-Induced Martensite during Static Strain Aging

Sang Hun Lee, Jeom Yong Choi, Won Jong Nam

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Keywords: strain aging, austenitic stainless steel, mechanical property, kinetics

JOURNAL RESTRICTED ACCESS Advance online publication

Article ID: MRP2008416

DOI https://doi.org/10.2320/matertrans.MRP2008416

The final version of this article is now available: Vol. 50 (2009) , No. 4 p.926

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Abstract

The hardening behavior of a 304 stainless steel containing deformation-induced martensite during static strain ageing was investigated. Tensile strength increased with the increase of aging temperature. The results of DSC measurements showed that the aging mechanisms would be related to carbon diffusion to dislocations in α′-martensite and carbon diffusion in austenite. It is found that the increase of strength during strain aging would be attributed to hardening of austenite as well as α′-martensite.

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