ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Ni3Al-based alloys possess good oxidation resistance, moderate room and hightemperature strength and ductility. Introduction of Cr-carbide particles through a solidification routeis attempted to provide higher hardness and wear resistance. The mechanical and physicalproperties are measured at room temperature for several alloys with various carbon concentrationsup to 2.0 wt.%. Hardness and wear resistance as well as compressive strength increase withincreasing carbon concentration, while bend ductility decreases. Adhesion between carbides andmatrix phase is good, and cracks propagate mainly through carbides. The crystallographicorientation relationships between constituent phases are also attempted using electronback-scattering diffraction (EBSD) technique. The thermal conductivity is found to be less sensitiveto the alloy composition
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/17/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.561-565.439.pdf
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