Effect of Carbon Addition on Solidification Structure and Strength of Cu–Cr In Situ Composite

Autor:	Kuniteru Mihara, Takao Takeuchi, Hirowo G. Suzuki
Rok vydání:	1998
Předmět:	Quenching Materials science Composite number General Engineering Nucleation Mineralogy chemistry.chemical_element Microstructure Carbide chemistry Ultimate tensile strength Composite material Supercooling Carbon
Zdroj:	Materials Transactions, JIM. 39:1093-1100
ISSN:	2432-471X 0916-1821
DOI:	10.2320/matertrans1989.39.1093
Popis:	A small amount of carbon was doped into a Cu-15 mass%Cr in situ composite to increase the strength of the material. It is found that in the as-cast state Cr dendrites exhibit a needle shape, which can be deformed into fibers much easier than the equiaxial one. A SIMS analysis with the aid of thermodynamic simulation analysis suggests that Cr carbide exists as a nucleation site of Cr dendrites. The composite has a tensile strength of 1200 MPa and an electrical conductivity of 38% IACS in the cold-worked state, and 960 MPa and 73% IACS after optimized aging treatment.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c7f3cc958bf6d54b6c91b67e7b1f87ec https://doi.org/10.2320/matertrans1989.39.1093 Zobrazit plný text záznamu