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A Model for Predicting Weld Metal Grain Refinement in G-V Space

Published online by Cambridge University Press:  15 February 2011

Ø. Grong  and
C.E. Cross
Ø. Grong
Affiliation:
Dept. of Materials Technology and Electrochemistry, Norwegian University of Science and Technology, N-7491 Trondheim, Norway
C.E. Cross
Affiliation:
Metallurgical Eng. Dept., Montana Tech of the University of Montana, Butte, MT 59701
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Abstract

A model has been developed which allows for the graphical representation of undercooling and nucleation site density in G-V space (i.e. temperature gradient G versus growth rate V). This model is used to explain a unique grain structure in weldments where equiaxed grains may be found both at the fusion boundary and along the center of the weld metal. Details of this model will be given and discussed in relation to grain refinement predictions in G- V space.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 578: Symposia A/C – Multiscale Phenomena in Materials - Experiments in Modeling , 1999 , 431
Copyright
Copyright © Materials Research Society 2000

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References

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