Microstructural characterization of as-cast Cr-B alloys

Journal Article · Tue Jan 15 00:00:00 EST 2008 · Materials Characterization

DOI:https://doi.org/10.1016/j.matchar.2006.10.015· OSTI ID:21062181

Gigolotti, J C.J. ^[1]; Faria, M I.S.T.; Coelho, G C; Nunes, C A; Suzuki, P A ^[1]

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1. EEL - Escola de Engenharia de Lorena, Campos-II, Departamento de Engenharia de Materiais (DEMAR), - Universidade de Sao Paulo (USP) Estrada Municipal do Campinho, CEP:12602810, Caixa Postal 116, Lorena, SP (Brazil)

Accurate knowledge of several Me-B (Me - Metal) phase diagrams are important to evaluate higher order systems such as Me-Si-B ternaries. This work presents results of microstructural characterization of as-cast Cr-B alloys which are significant to assess the liquid compositions associated to most of the invariant reactions of this system. Alloys of different compositions were prepared by arc melting pure Cr and B pressed powder mixtures under argon atmosphere in a water-cooled copper crucible with non-consumable tungsten electrode and titanium getter. The phases were identified by scanning electron microscopy (SEM), using back-scattered electron (BSE) image mode and X-ray diffraction (XRD). In general, a good agreement was found between our data and those from the currently accepted Cr-B phase diagram.

• OSTI ID: 21062181
• Journal Information: Materials Characterization, Vol. 59, Issue 1; Other Information: DOI: 10.1016/j.matchar.2006.10.015; PII: S1044-5803(06)00312-3; Copyright (c) 2006 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 1044-5803
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ARGON
BORIDES
BORON ALLOYS
CHROMIUM ALLOYS
COPPER
ELECTRODES
MICROSTRUCTURE
PHASE DIAGRAMS
SCANNING ELECTRON MICROSCOPY
TITANIUM
TUNGSTEN
X-RAY DIFFRACTION