Role of retained austenite on the deformation of an Fe-0. 07C-1. 8Mn-1. 4Si dual-phase steel
The influence of retained austenite on work hardening behavior of dual-phase steel has been investigated in an intercritically annealed dual-phase steel. The retained austenite was classified morphologically into either isolated or capsulated type. The capsulated type was found to be much stable mechanically than the isolated type since the former could be effectively protected from strain by hard martensite shell. The isolated type was easily deformed by the first several percent plastic strain. The increase in work hardening rate, caused by the strain induced transformation of retained austenite to martensite, was ascribed to the contribution of the isolated type, the major volume fraction of retained austenite.
- Research Organization:
- Technical Research Laboratories, Pohang Iron and Steel Company Ltd.
- OSTI ID:
- 6325800
- Report Number(s):
- CONF-8311156-
- Journal Information:
- SAE Prepr.; (United States), Journal Name: SAE Prepr.; (United States) Vol. 830884; ISSN SEPPA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
360101* -- Metals & Alloys-- Preparation & Fabrication
360103 -- Metals & Alloys-- Mechanical Properties
ALLOYS
ANNEALING
AUSTENITE
AUSTENITIC STEELS
CARBON ADDITIONS
DEFORMATION
HARDENING
HEAT TREATMENTS
IRON ADDITIONS
IRON ALLOYS
IRON BASE ALLOYS
MANGANESE ALLOYS
MARTENSITE
MORPHOLOGY
SILICON ALLOYS
STEELS
STRAINS