Structure-property relationship of a spray formed Al-Y-Ni-Co alloy

W. J. Golumbfskie, M. F. Amateau, T. J. Eden, J. G. Wang, Z. K. Liu

Research output: Contribution to journalArticle

13 Scopus citations

Abstract

The structure-property relationship of a spray formed Al-Y-Ni-Co alloy with two sets of processing conditions was investigated. Significant differences in tensile strength, yield strength, and high temperature ductility were observed with respect to the microstructural changes. Fracture toughness values were determined for both sets of specimens and found to be 7.5 and 5.8 MPa·m1/2, respectively. Three intermetallic phases were observed in the matrix and constitute a volume fraction of approximately 75%. It is believed that the specimens failed during fracture toughness testing by the mechanism of cleavage, observed in the Al3Y intermetallic particles.

Original languageEnglish (US)
Pages (from-to)5199-5209
Number of pages11
JournalActa Materialia
Volume51
Issue number17
DOIs
StatePublished - Oct 6 2003

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Polymers and Plastics
  • Metals and Alloys

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