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| Keywords | |
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Austenite grain size |
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Martensite formation |
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TWIP steel |
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Stacking fault probability |
| Authors | |
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GHASEM -Dini |
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ABBAS -Najafizadeh |
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SAYED MAHMOUD -Monir Vaghefi |
| PubMed | |
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Article by Ghasem,.D |
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Article by Abbas,.N |
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Article by Sayed Mahmoud,.M |
Grain Size Effect on the Martensite Formation in a High-Manganese TWIP Steel by the Rietveld Method
G. Dini1), A. Najagizadeh1), S.M. Monir-Vaghefi1), R. Ueji2)
1) Department of Materials Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran
2) Department of Advanced Materials Science, Faculty of Engineering, Kagawa University, 2217-20, Hayashi-cho, Takamatsu, Kagawa, 761-0396, Japan
The aim of the present work was to study the effect of austenite grain size (AGS) on the martensite formation in a high-manganese twinning-induced plasticity (TWIP) steel. The results of a quantitative microstructural characterization of the steel by the whole X-ray pattern fitting Rietveld software, materials analysis using diffraction (MAUD), indicated that the volume fraction of ffbcc-martensite increases with increasing AGS. However, the value of the stacking fault probability (Psf ) does not show a large variation for samples with different values of AGS under water-quenching conditions.
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I. Prior Austenite Grain Size[J]. J. Mater. Sci. Technol., 2010,46(02): 155-160