Effect of Boron on Solidification Microstructure in a Single Crystal Superalloy

Abstract:

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Carbon and boron were mainly considered to strengthen grain boundaries formed during single crystal casting of complex shaped components. However, those elements cause segregation forming the phase with low melting temperature or with brittle nature. To determine the optimum amount of these elements, the effect of boron on solidification behavior was investigated in the C doped single crystal RR 2072 alloy. The solid/liquid interface morphologies and the solidification microstructures were studied at various solidification rates and with B addition by directional solidification.

Info:

Periodical:

Materials Science Forum (Volumes 486-487)

Edited by:

Hyung Sun Kim, Sang-Yeop Park, Bo Young Hur and Soo Wohn Lee

Pages:

460-463

DOI:

10.4028/www.scientific.net/MSF.486-487.460

Citation:

C. Y. Jo et al., "Effect of Boron on Solidification Microstructure in a Single Crystal Superalloy", Materials Science Forum, Vols. 486-487, pp. 460-463, 2005

Online since:

June 2005

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Price:

$35.00

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