Biaxial deformation and martensitic transformation behaviour observation on type 304 stainless sheet by biaxial bulge test

Metallurgical characteristic phenomenon on type 304 stainless steel is the deformation induced martensitic transformation. To clarify the stress-strain curves and martensitic transformation behaviour, biaxial bulge test apparatus was developed. It enables to control the stress ratio of axial and cir...

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Bibliographic Details
Published inJournal of physics. Conference series Vol. 1063; no. 1; pp. 12108 - 12112
Main Authors Kusaka, S, Hamasaki, H, Ishimaru, E
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.07.2018
Subjects
Axial stress
Equivalence
Martensite
Martensitic transformations
Metallurgy
Physics
Plane strain
Plastic deformation
Stainless steels
Strain rate
Stress ratio
Stress-strain curves
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Summary:Metallurgical characteristic phenomenon on type 304 stainless steel is the deformation induced martensitic transformation. To clarify the stress-strain curves and martensitic transformation behaviour, biaxial bulge test apparatus was developed. It enables to control the stress ratio of axial and circumference directions and equivalent plastic strain rate simultaneously. Biaxial bulge tests for uniaxial, equi-biaxial and plane strain cases were conducted at the constant temperature 20°C. The obtained martensite volume fraction vs. equivalent stress curves for all the tests were well agreed, so that it can be said that the martensite volume fraction was predictable by the maximum austenie stress.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1063/1/012108