The effect of nickel additions on the microstructure and ultimate tensile strength of alloy Al – 10% Si – 5% Cu in cast and heat treated conditions is studied. The nickel content optimum for obtaining a maximum-strength alloy is determined. The conditions at which a fishbone morphology negatively affecting the mechanical properties does not form are determined. Mechanical stirring of the melt before crystallization is shown to affect positively the strength and the structure of the alloy.

中文翻译：

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镍合金化和机械搅拌对 Al – 10% Si – 5% Cu 合金组织和力学性能的影响

研究了在铸造和热处理条件下，镍添加量对 Al – 10% Si – 5% Cu 合金的微观结构和极限抗拉强度的影响。确定获得最大强度合金的最佳镍含量。确定不形成对机械性能产生负面影响的鱼骨形态的条件。结晶前熔体的机械搅拌显示出对合金的强度和结构有积极影响。