A STUDY OF CARBIDE GROWTH IN MAR-M247 LC ALLOY BY DIRECTIONAL SOLIDIFICATION METHOD

Abstract

Abstract: The carbide growth behavior of MAR-M247 LC alloy was investigated by directional solidification and quench method. The carbide volume fraction, trapping and growth behavior were correlated with the growth rate.It was found that the carbide volume fraction decreased at slower growth rate.This decreasing was caused by lower solidliquid interface trapping ability at slower growth rate.

Key words: carbide, directional solidification, trapping, growth

J.H Lee;J. Chen;S.J. Choe;Y.T. Lee and H.M. Kim(High Temperature Materials Laboratory, Korea Institute of Machinery & Materials, 66 Sangnam Dong,Changwon, Kyungnam,641010, Korea Manuscript received 26 August 1996). A STUDY OF CARBIDE GROWTH IN MAR-M247 LC ALLOY BY DIRECTIONAL SOLIDIFICATION METHOD[J]. Acta Metallurgica Sinica (English Letters), 1996, 9(6): 509-514.

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A STUDY OF CARBIDE GROWTH IN MAR-M247 LC ALLOY BY DIRECTIONAL SOLIDIFICATION METHOD

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