Oxidation resistance and mechanical properties of Laves phase reinforced Cr in-situ composites

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • M. P. Brady
  • J. H. Zhu
  • C. T. Liu
  • P. F. Tortorelli
  • L. R. Walker

Detail(s)

Original languageEnglish
Pages (from-to)1111-1118
Journal / PublicationIntermetallics
Volume8
Issue number9-11
Publication statusPublished - Sep 2000
Externally publishedYes

Abstract

Two-phase Cr(X)-Cr2X (X = Nb, Ta) in-situ composites are of interest for high-temperature applications due to their high melting points and potential for high-temperature strength. A six cycle, 120 h, 1100 °C cyclic oxidation screening test was used to evaluate potential for high-temperature oxidation resistance of several Cr(X)-Cr2X in-situ composites. Alloys based on the Cr-Ta system near the Cr(Ta)-Cr2Ta eutectic exhibited superior oxidation resistance compared to corresponding alloys based on the Cr-Nb system. The binary Cr-Ta alloys were also found to exhibit a moderate degree of room-temperature fracture toughness, in the range of 9-10 MPa√m. It was concluded that the Cr(Ta)-Cr2Ta alloys are a promising base for future high-temperature intermetallic alloy development efforts.

Citation Format(s)

Oxidation resistance and mechanical properties of Laves phase reinforced Cr in-situ composites. / Brady, M. P.; Zhu, J. H.; Liu, C. T.; Tortorelli, P. F.; Walker, L. R.

In: Intermetallics, Vol. 8, No. 9-11, 09.2000, p. 1111-1118.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review