Sharma, B D and Tiwari, G P and Ray, S P (1968) Diffusion in bcc Transition Metals. In: Symposium on Non-ferrous Metals Technology : Papers for presentation, 4th - 7th Dec.1968, National Metallurgical Laboratory (CSIR), Jamshedpur.
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Abstract
Diffusion in metals and alloys is a defect contro-lled process. It occurs as a result of solvent (solute) atom-vacency exchange in the matrix. Diffusion can also occur along short circuiting paths like dislocations or grain boundaries. In all these cases the temperature dep-endence of diffusivity follows an Arrhanious relationship i.e.log D vs l/t plot is linear. The diffusivity is writt-en as D=Do exp(-Q/rt) where D0 and Q are frequency factor and activation energy for diffusion.
| Item Type: | Conference or Workshop Item (Lecture) |
|---|---|
| Uncontrolled Keywords: | Diffusion; Transition metals; field of atom |
| Subjects: | Metallurgy |
| Divisions: | Metal Extraction and Forming |
| Depositing User: | Users 5 not found. |
| Date Deposited: | 28 Dec 2011 08:45 |
| Last Modified: | 28 Dec 2011 08:45 |
| URI: | http://eprints.nmlindia.org/id/eprint/4504 |
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