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Influence of vibration on grain size and degree of grain refinement in mild steel weldments

Published online by Cambridge University Press:  03 March 2011

S.P. Tewari
S.P. Tewari
Affiliation:
Department of Mechanical Engineering, Institute of Technology, Banaras Hindu University, Varanasi-221005, India
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Abstract

Mild steel plates were welded under stationary and dynamic (longitudinal and transverse vibration) conditions. The frequency and amplitude ranges selected were 0 Hz to 300 Hz and 0 μm to 30 μm, respectively. It has been observed on the basis of experimental findings that vibration, in general, reduces the grain size of the weldment, and this reduction is appreciable at a lower amplitude of vibration. This may be due to the lower energy required for nucleation of the solid phase. Fast removal of latent heat of solidification from the solid liquid interface plays a significant part in the grain refinement under vibration.

Type
Articles
Information
Journal of Materials Research , Volume 8 , Issue 9 , September 1993 , pp. 2228 - 2230
Copyright
Copyright © Materials Research Society 1993

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References

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