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The Influence of Oxygen-Rich Inclusions on the Nature of Austenite Decomposition Products of Weld Metal Deposits

Published online by Cambridge University Press:  21 February 2011

M. Ferrante  and
K. Akune
M. Ferrante
Affiliation:
Departairento de Engenharia de Materiais, Universidade Federal de São Carlos, 13560 São Carlos, Brasil
K. Akune
Affiliation:
Departairento de Engenharia de Materiais, Universidade Federal de São Carlos, 13560 São Carlos, Brasil
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Abstract

Recent studies carried out on weld metal have called attention to the role of oxygen-rich inclusions on austenite decomposition. This investigation describes some evidences of the catalytic effect of dislocations upon the γ → α transformation. These defects are generated at the matrix inclusion interface and its presence has been ascertained by TEM. Estimates of the stresses arising from differences in thermal contraction between inclusion and matrix on cooling confirm microstructural observations.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 21: Symposium GREECE – Phase Transformations in Solids , 1983 , 817
Copyright
Copyright © Materials Research Society 1984

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References

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