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Effect of Formability Process Parameters in Dynamic Strain Ageing Region of Austenitic Stainless Steel

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Title Effect of Formability Process Parameters in Dynamic Strain Ageing Region of Austenitic Stainless Steel
 
Creator Lakshmi, Anitha
Ch, Srinivasa Rao
Singhal, Piyush
 
Subject ASS 304
Dynamic Strain Ageing (DSA)
Forming Limit Diagram (FLD)
Limiting Dome Height (LDH)
Strain rate
Strain Distribution
 
Description 809-816
The consumption of Austenitic Stainless-Steel ASS 304 has been increasing recently in the outer body of Automobile
applications. Sheet Metal Forming is one of the processes used to convert ASS 304 sheet into an end product. ASS 304 has
good ductility with the rise in temperature up to 450oC and later dynamic strain aging (DSA) in the temperature range 450-
600oC. Formability studies of ASS 304 in the DSA region and the effect of process parameters like anisotropy and strain
rate are investigated in the present paper. Stretch forming Investigations have been carried out at a temperature of 500oC in
two quasi-static strain rate ranges 1x 10-4 s-1 and 1x 10-1 s-1 concerning three orientations parallel (R0), diagonal (R45) and
Transverse(R90) to Rolling Direction. The experiments were carried out at both the necking and fracture regions. Deformed
specimens' major and minor strains are measured to plot Fracture Forming limit Diagrams, strain distribution, and limiting
Dome height. Particular attention is given to the evaluation of strain rate and orientation of the sheet concerning rolling
direction on formability.
 
Date 2023-01-20T10:20:04Z
2023-01-20T10:20:04Z
2023-01
 
Type Article
 
Identifier 0971-4588 (Print); 0975-1017 (Online)
http://nopr.niscpr.res.in/handle/123456789/61227
https://doi.org/10.56042/ijems.v29i6.70298
 
Language en
 
Publisher NIScPR-CSIR,India
 
Source IJEMS Vol.29(6) [December 2022]