title: Microstructure and mechanical properties of AA7039+20%SiC W composite.
abstract: Hot deformation tests were performed on an AA7039-matrix composite reinforced with a 20% addition of SiC whiskers. The flow stress maximum was reduced with deformation temperature from 640 MPa to approximately 8 MPa at 293 K and 823 K, respectively. TEM observations, performed on as deformed samples, revealed a highly recovered substructure of the matrix and a striated structure of the whiskers. The fringes, which are perpendicular to the whiskers' longitudinal axis, were ascribed to nano-sized twins and stacking faults formed during the crystal growth rather than to some effects of the deformation process.
authors.affiliation: AGH - University of Science and Technology, ave. Mickiewicza 30, 30-059 Cracow, Poland. blaz@uci.agh.edu.pl
authors.forename: L
authors.initials: L
authors.lastname: Blaz
authors.forename: A
authors.initials: A
authors.lastname: Kula
authors.forename: J
authors.initials: J
authors.lastname: Kaneko
authors.forename: M
authors.initials: M
authors.lastname: Sugamata
authors.forename: G
authors.initials: G
authors.lastname: Wloch
authors.forename: K
authors.initials: K
authors.lastname: Sobota