1 Preliminary results were already reported at Bordeaux graph theory workshop 2012 [2]. 2 Supported by MŠMT ČR grant LH12095 and GAČR grant P202/12/G061. 3 Supported by grant ERC-CZ LL-1201 of the Czech Ministry of Education, CE-ITI of GAČR P202/12/G061 and the European Associated Laboratory “Structures in Combinatorics” (LEA STRUCO) P202/12/6061. 4 Email: [email protected] 5 Email: hubicka...

The compressive mechanical properties of uniform and density-graded Al-6061 foams, produced by replication of polymer foams, are measured. hile the uniform foam shows compressive behavior characteristic of conventional (uniform) metallic foams with a near constant plateau stress, he density-graded foam exhibits a smoothly rising plateau stress. This behavior is modeled using a simple series com...

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L. Civale,1 A. V. Silhanek,1 J. R. Thompson,2,3 K. J. Song,3 C. V. Tomy,4 and D. McK. Paul4 1Comisión Nacional de Energı́a Atómica-Centro Atómico Bariloche, 8400 Bariloche, Argentina 2Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6061 3Department of Physics, University of Tennessee, Knoxville, Tennessee 37996-1200 4Department of Physics, University of Warwick, Coventry, CV4 7AL, Unit...

Statistical concepts from Design of Experiments were used to study the effect of thermal processing on the mechanical properties of 6061 aluminum. The soak temperature, cooling rate and soak temperature/cooling rate interaction term were found to be the most influential processing variables. Soak time and heating rate were statistically insignificant in the current experimental design, but modi...

As additive techniques such as laser powder bed fusion find increasing adoption industry, the ability to adapt these processes industrially relevant materials is paramount. This adaptation can represent a significant challenge when working with wrought alloy feedstocks, which often result in brittle or porous parts lacking mechanical properties of their conventionally counterparts. One alloy, a...