Paper Title:
Microstructure Control of Co3AlC-Base Heat Resistant Alloys Using Optical Floating Zone Melting
  Abstract

Aiming for further improvement of mechanical properties of Co3AlC-based heat resistant alloys, microstructure control was conducted using optical floating zone (OFZ) melting. Unidirectional solidification was performed to align Co3AlC/a(Co) two-phase eutectic microstructure. Co3AlC single phase poly-crystal alloys were successfully fabricated for the first time by taking advantage of OFZ. Mechanical properties were evaluated for selected alloys by compression tests at ambient temperature, 1073 K and 1273 K. Excellent elevated temperature strength is achieved in Co3AlC single phase alloys and ductility is sufficiently improved in Co3AlC/a(Co) two-phase alloys.

  Info
Periodical
Materials Science Forum (Volumes 475-479)
Main Theme
Edited by
Z.Y. Zhong, H. Saka, T.H. Kim, E.A. Holm, Y.F. Han and X.S. Xie
Pages
833-836
DOI
10.4028/www.scientific.net/MSF.475-479.833
Citation
Y. Kimura, K. Sakai, S. Teramoto, Y. Mishima, "Microstructure Control of Co3AlC-Base Heat Resistant Alloys Using Optical Floating Zone Melting", Materials Science Forum, Vols. 475-479, pp. 833-836, 2005
Online since
January 2005
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$32.00
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