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| The influence of martensite volume fraction, shape and strength on the mechanical properties of granular structure steels |
| Xu Feng-yun;; |
| 北京清华大学材料科学与工程系 |
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Cite this article:
Xu Feng-yun. The influence of martensite volume fraction, shape and strength on the mechanical properties of granular structure steels. Acta Metall Sin, 2008, 44(10): 1183-1187 .
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Abstract The uniaxial load flow behavior of granular structure steels is predicted by Eshelby equivalent inclusion theory incorporating the plastic deformation of martensite islands. The result shows that the yield strength and work hardeing ratio of granular structure steels before martensite yielding, increase with increasing the volume fraction of martensite island presenting some nonlinear effects; The morphology of martesite island play a little role in stress-strain curves of homogeneous deformation; the strength of martensite island has little influence on the yield strength of granular structure and martensite island is harder to deform plastically corresponding to lower volume fraction of martensite island.
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Received: 27 January 2008
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