Microstructures and Mechanical Properties of Two-Phase Alloys Based on NbCr(2)
A two-phase, Nb-Cr-Ti alloy (bee+ C15 Laves phase) has been developed using several alloy design methodologies. In effort to understand processing-microstructure-property relationships, diffment processing routes were employed. The resulting microstructure and mechanical properties are discussed and compared. Plasma arc-melted 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.
- Research Organization:
- Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 2185
- Report Number(s):
- SAND98-2735C; ON: DE00002185
- Resource Relation:
- Conference: 1998 Fall Meeting of the Materials Research Society; Boston, MA; 11/30-12/04/1998
- Country of Publication:
- United States
- Language:
- English
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