| THERMODYNAMICS OF MARTENSITIC TRANSFORMATION IN Fe-Mn-C AND Fe-Ni-C ALLOYS |
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| 作者姓名： | XU Zuyao |
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| 作者单位： | XU Zuyao(T.Y.Hsu) PAN Mu Shanghai Jiaotong University，Shanghai，China Correspondent:XU Zuyao(T.Y.Hsu) Professor，Department of Materials Science，Shanghai Jiaotong University，Shanghai，China |
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| 摘 要： | A Central Atom Model is introduced and the LFG and Hsu models are modified in order toevaluate the driving force for the martensitic transformation in Fe-Mn-C and Fe-Ni-C al-loys.The results show that the relationship between the driving force and the yield strength ofaustenite at Ms temperature,σ_(0.2)~γ/M_s,fits Hsu's formula;ΔG~=2.1σ_(0.2)~γ/M_s+907J/mol.The M_s temperatures of Fe-Mn-C and Fe-Ni-C alloys are also calculated.Thecalculated results are in good agreement with experimental values.
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| 收稿时间： | 1990-02-25 |
| 修稿时间： | 1990-02-25 |
THERMODYNAMICS OF MARTENSITIC TRANSFORMATION IN Fe-Mn-C AND Fe-Ni-C ALLOYS |
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| XU Zuyao.THERMODYNAMICS OF MARTENSITIC TRANSFORMATION IN Fe-Mn-C AND Fe-Ni-C ALLOYS[J].Acta Metallurgica Sinica(English Letters),1990,3(1):16-21. |
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| Authors: | XU Zuyao PAN Mu Shanghai Jiaotong University Shanghai China Correspondent:XU Zuyao Professor |
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| Affiliation: | XU Zuyao(T.Y.Hsu) PAN Mu Shanghai Jiaotong University,Shanghai,China Correspondent:XU Zuyao(T.Y.Hsu) Professor,Department of Materials Science,Shanghai Jiaotong University,Shanghai,China |
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| Abstract: | A Central Atom Model is introduced and the LFG and Hsu models are modified in order to evaluate the driving force for the martensitic transformation in Fe-Mn-C and Fe-Ni-C al- loys.The results show that the relationship between the driving force and the yield strength of austenite at Ms temperature,σ_(0.2)~γ/M_s,fits Hsu's formula;ΔG~=2.1σ_(0.2)~γ/M_s+907 J/mol.The M_s temperatures of Fe-Mn-C and Fe-Ni-C alloys are also calculated.The calculated results are in good agreement with experimental values. |
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| Keywords: | Fe-Mn-C alloy Fe-Ni-C alloy martensitic transformation |
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