Dispersion strengthened aluminum base alloys are shaped into metal parts by high strain rate forging compacts or extruded billets composed thereof. The number of process steps required to produce the forged part are decreased and strength and toughness of the parts are increased. The dispersion strengthened alloy may have the formula Al bal ,Fe a ,Si b X c , wherein X is at least one element selected from Mn, V, Cr, Mo, W, Nb, and Ta, "a" ranges from 2.0 to 7.5 weight-%, "b" ranges from 0.5 to 3.0 weight-%, "c" ranges from 0.05 to 3.5 weight-%, and the balance is aluminum plus incidental impurities. Alternatively, the dispersion strengthened alloy may be described by the formula Al bal ,Fe a ,Si b V d X c , wherein X is at least one element selected from Mn, Mo, W, Cr, Ta, Zr, Ce, Er, Sc, Nd, Yb, and Y, "a" ranges from 2.0 to 7.5 weight-%, "b" ranges from 0.5 to 3.0 weight-%, "d" ranges from 0.05 to 3.5 weight-%, "c" ranges from 0.02 to 1.50 weight %, and the balance is aluminum plus incidental impurities. In both cases, the ratio [Fe+X]:Si in the dispersion strengthened alloys is within the range of from about 2:1 1 to about 5:1.
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机译:弥散强化的铝基合金通过高应变率锻造压块或由其组成的挤压坯料成形为金属零件。减少了生产锻造零件所需的工艺步骤,并提高了零件的强度和韧性。分散增强合金可具有式Al bal,Fe a,Si b X c,其中X是选自Mn,V,Cr,Mo,W,Nb和Ta中的至少一种元素,“ a”的范围为2.0至7.5重量%,“ b”为0.5至3.0重量%,“ c”为0.05至3.5重量%,余量为铝加上偶然的杂质。替代地,分散增强合金可以由式Al bal,Fe a,Si b V d X c来描述,其中X是选自Mn,Mo,W,Cr,Ta,Zr,Ce,Er的至少一种元素, Sc,Nd,Yb和Y,“ a”的范围为2.0至7.5重量%,“ b”的范围为0.5至3.0重量%,“ d”的范围为0.05至3.5重量%,“ c”的范围为0.02至1.50重量%,其余为铝加杂质。在两种情况下,分散增强合金中的[Fe + X]:Si之比在约2:1 1至约5:1的范围内。
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