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.
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|
|Divisions:||Metal Extraction and Forming|
|Deposited By:||Sahu A K|
|Deposited On:||28 Dec 2011 14:15|
|Last Modified:||28 Dec 2011 14:15|
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