A Systematic Study on Iron Carbides from First-Principles |
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| Journal | Materials Science Forum (Volumes 654 - 656) |
|---|---|
| Volume | PRICM7 |
| Edited by | Jian-Feng Nie and Allan Morton |
| Pages | 47-50 |
| DOI | 10.4028/www.scientific.net/MSF.654-656.47 |
| Citation | In Gee Kim et al., 2010, Materials Science Forum, 654-656, 47 |
| Online since | June, 2010 |
| Authors | In Gee Kim, Gul Rahman, Jae Hoon Jang, You Young Song, Seung Woo Seo, H.K.D.H. Bhadeshia, A.J. Freeman, G.B. Olson |
| Keywords | Carbide, First-Principles Calculations, Steel, Thermodynamic |
| Abstract | The formation enthalpy of a series of Fe-C carbides has been estimated using a first-principles approach. The Fe to C ratio dependence of the formation enthalpy is reasonable, but it is revealed that - and -carbides require an extraordinary environment to be able to form. Furthermore, an addition of substitutional solutes other than Fe and C should promote other carbides with different crystal structures. The analysis suggests further studies to discover the critical concentrations of alloying which stimulate the other carbides to become more stable. |
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