摘要:
High strength and high toughness aluminum alloy forgings having, as a whole, a strength at &sgr;0.2 of 315 N/mm2 or more and an impact shock value of 20 J/cm2 or more, wherein the aluminum alloy material contains Mg: 0.6-1.6%, Si: 0.8-1.8%, Cu: 0.1-1.0%, Fe: 0.30% or less, one or more of Mn: 0.15-0.6%, Cr: 0.1-0.2% and Zr: 0.1-0.2%, and the balance of Al and inevitable impurities, wherein the volume fraction of total constituents phase particles (Mg2Si and Al—Fe—Si—(Mn, Cr, Zr) series intermetallic compounds) in the aluminum alloy structure in the forgings is 1.5% or less per unit area.
摘要翻译:高强度和高韧性的铝合金锻件总体上具有315N / mm 2或更大的σ0.2的强度和20J / cm 2以上的冲击冲击值,其中铝合金 材料含有Mg:0.6-1.6%,Si:0.8-1.8%,Cu:0.1-1.0%,Fe:0.30%以下,Mn:0.15-0.6%,Cr:0.1-0.2%,Zr: 0.1-0.2%,其余为Al和不可避免的杂质,其中铝合金结构中总成分相颗粒(Mg2Si和Al-Fe-Si-(Mn,Cr,Zr)系列金属间化合物)的体积分数 锻件的单位面积为1.5%以下。
摘要:
A method for refining molten Al alloy and a non-halogen based flux for refining molten Al alloy which make it possible to perform refining such as removal of gas and inclusions at a high reduction level, and are free from a problem that the flux remains in the molten Al alloy, wherein a refining flux is injected into molten Al alloy obtained by melting an Al raw material to refine the melt, thereafter, the resultant is supplied to a mold, so as to cast the Al alloy. At this time, alum is used as the refining flux.