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Title: Synthesis, Microstructure, and Mechanical Properties of FeCo-VC Composites

Abstract

Fe-Co-V-C quaternary alloys were drop cast and directionally solidified to obtain an in situ composite. It is found that the fully eutectic structure occurs at a composition of Fe - 40.5Co -10.4V- 8.6C (at. %) in a drop-cast alloy. Directional solidification of this composition in a high-temperature optical floating zone furnace produces a well-aligned microstructure, consisting of sub-micron VC fibers ({approx}19% by volume) embedded in a FeCo-5V solid solution matrix containing {approx}1% C. The temperature dependencies of mechanical properties of this composite were examined by tensile tests and the composite was found to have higher yield strength and lower ductility than the matrix.

Authors:
 [1];  [1]
  1. ORNL
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
931494
DOE Contract Number:  
DE-AC05-00OR22725
Resource Type:
Conference
Resource Relation:
Conference: MRS Fall Meeting, Boston, MA, USA, 20061127, 20061201
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ALLOYS; DUCTILITY; EUTECTICS; FIBERS; FURNACES; MECHANICAL PROPERTIES; MICROSTRUCTURE; SOLID SOLUTIONS; SOLIDIFICATION; SYNTHESIS; YIELD STRENGTH; COMPOSITE MATERIALS

Citation Formats

Bei, Hongbin, and George, Easo P. Synthesis, Microstructure, and Mechanical Properties of FeCo-VC Composites. United States: N. p., 2007. Web.
Bei, Hongbin, & George, Easo P. Synthesis, Microstructure, and Mechanical Properties of FeCo-VC Composites. United States.
Bei, Hongbin, and George, Easo P. Mon . "Synthesis, Microstructure, and Mechanical Properties of FeCo-VC Composites". United States. doi:.
@article{osti_931494,
title = {Synthesis, Microstructure, and Mechanical Properties of FeCo-VC Composites},
author = {Bei, Hongbin and George, Easo P},
abstractNote = {Fe-Co-V-C quaternary alloys were drop cast and directionally solidified to obtain an in situ composite. It is found that the fully eutectic structure occurs at a composition of Fe - 40.5Co -10.4V- 8.6C (at. %) in a drop-cast alloy. Directional solidification of this composition in a high-temperature optical floating zone furnace produces a well-aligned microstructure, consisting of sub-micron VC fibers ({approx}19% by volume) embedded in a FeCo-5V solid solution matrix containing {approx}1% C. The temperature dependencies of mechanical properties of this composite were examined by tensile tests and the composite was found to have higher yield strength and lower ductility than the matrix.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2007},
month = {Mon Jan 01 00:00:00 EST 2007}
}

Conference:
Other availability
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