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Microstructures and Mechanical Properties of Two-Phase Alloys Based on NbCr2
Materials Research Society Symposium Proceedings
  • Katherine C. Chen, Los Alamos National Laboratory
  • Paul G . Kotula, Sandia National Laboratories
  • Carl M. Cady, Los Alamos National Laboratory
  • Michael E. Mauro, Los Alamos National Laboratory
  • Dan J. Thoma, Los Alamos National Laboratory
Publication Date

A two-phase, NbCrTi alloy (bcc + C15 Laves phase) has been developed using several alloy design methodologies. In efforts to understand processing-microstructure-property relationships, different processing routes were employed. The resulting microstructures and mechanical properties are discussed and compared. Plasma arc melted (PAM) samples served to establish baseline, as-cast properties. In addition, a novel processing technique, involving decomposition of a supersaturated and metastable precursor phase during hot isostatic pressing (HIP), was used to produce a refined, equilibrium two-phase microstructure. Quasi-static compression tests as a function of temperature were performed on both alloy types. Different deformation mechanisms were encountered based upon temperature and microstructure.

Citation Information
Katherine C. Chen, Paul G . Kotula, Carl M. Cady, Michael E. Mauro, et al.. "Microstructures and Mechanical Properties of Two-Phase Alloys Based on NbCr2" Materials Research Society Symposium Proceedings Vol. 552 (1998)
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