Effect of Carbon Fraction on Stacking Fault Energy of Austenitic Stainless Steels
SCIE
SCOPUS
- Title
- Effect of Carbon Fraction on Stacking Fault Energy of Austenitic Stainless Steels
- Authors
- Tae-Ho Lee; Heon-Young Ha; Byoungchul Hwang; Kim, SJ; Eunjoo Shin
- Date Issued
- 2012-12
- Publisher
- Springer US
- Abstract
- The effect of C fraction (C/N) on stacking fault energy (SFE) of austenitic Fe-18Cr-10Mn steels with a fixed amount of C + N (0.6 wt pct) was investigated by means of neutron diffraction and transmission electron microscopy (TEM). The SFE were evaluated by the Rietveld whole-profile fitting combined with the double-Voigt size-strain analysis for neutron diffraction profiles using neutron diffraction. The measured SFE showed distinguishable difference and were well correlated with the change in deformation microstructure. Three-dimensional linear regression analyses yielded the relation reflecting the contribution of both C + N and C/N: SFE (mJ/m(2)) = -5.97 + 39.94(wt pct C + N) + 3.81(C/N). As C fraction increased, the strain-induced gamma ->epsilon martensitic transformation was suppressed, and deformation twinning became the primary mode of plastic deformation.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/11377
- DOI
- 10.1007/S11661-012-1423-Y
- ISSN
- 1073-5623
- Article Type
- Article
- Citation
- Metallurgical and Materials Transactions A, vol. 43, no. 12, page. 4455 - 4459, 2012-12
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