《Cryomilled aluminum alloy and boron carbide nano-composite plate 》.pdf

Journal of Materials Processing Technology 209 (2009) 5046–5053 Contents lists available at ScienceDirect Journal of Materials Processing Technology j o u rn al h omepage: w w w. elsev /locate/jmat protec Cryomilled aluminum alloy and boron carbide nano-composite plate R.G. Vogt, Z. Zhang, T.D. Topping, E.J. Lavernia, J.M. Schoenung ∗ Department of Chemical Engineering and Materials Science, University of California, One Shields Ave, Davis, CA 95616, USA a r t i c l e i n f o a b s t r a c t Article history: The addition of ceramic particulate reinforcement via cryomilling can significantly increase the physical Received 17 October 2008 and mechanical properties of Al alloys. In the present study, boron carbide (B4 C) was cryomilled with Received in revised form 2 February 2009 Al 5083 to form a nano-grained metal matrix powder. This powder was blended with unmilled Al 5083 Accepted 6 February 2009 to increase ductility and was then consolidated into plates by three methods: (1) hot isostatic pressing (HIPping) followed by high strain rate forging (HSRF), (2) HIPping followed by two-step quasi-isostatic Keywords: forging (QIF), and (3) three-step QIF. The effects of process method on microstructure and mechanical Cryomilling behavior for the final consolidated nano-composite plates were investigated. MMC Hot isostatic pressing © 2009 Elsev