Thermal expansion of aluminum and some aluminum alloys

Data ar e given on the li near t hermal expansion of aluminum and some a luminumberylliu.m, aluminl!m-copper, al~minum-sillc~m, al~J?inum-copper-iron , aluminum-copper-magneslUm, . alummum-col?per-lllckel, . alum In um-~llI con-copp er, al uminum-silicon-magne-SIUm, a lummum-copper-mckel-magneslUm, a luilllnum-copper-t in-zillc aluminum-siliconcopper-mangan.ese, aly ill in ul!l-silicon -copper-nickel, alu min u m -s ilico n-dickel-cop per-manganese; and al u ~lllum-slhcon.;-n--!ck~l-c opp er~Jl;lO lybdenum ~lloy s fo r various t emperature ranges be t"een -50 and + 400 IJ . Ihe add ItIOn of beryll lUm copper or silicon to aluminum cal1 se~ ~ decrease in the coeffic ients of expansion. Copper h~s a great er effect than bery llium, and SilICon J;tas. the greatest effect of thes.e . three allOYIng elements. T ernary diagrams are shown th.at llldlCate t he .effe cts .~f compOSitIOn on the coefficients of expansion of a luminl1mcopper-nICkel and a lummum-slhcon-copper alloys. Thc eff ects of additions o f t o r three elem~nt s (c? ,?per, nickel, m::ng~ne se , ~nd molybdcnum) on th e coefficients of expansion of alummum-sll lCon alloys a re mdlCated III a fi gure.