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Interaction of iron-chromium alloys containing 10 and 25 mass% chromium with liquid aluminium - Part II - Formation of intermetallic compounds

机译:铬含量为10%和25%的铁铬合金与液态铝的相互作用-第二部分-金属间化合物的形成

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摘要

Two intermetallic layers Fe2Al5 and Fe2Al7 occur at the interface between the iron-chromium alloys containing 10 and 25 mass% Cr and the saturated aluminium melt at 700degreesC. Under conditions of simultaneous dissolution in pure liquid aluminium only the Fe2Al5 phase forms an adherent continuous layer, while the Fe2Al7, FeAl3, FeAl6, CrAl7 and other phases exist as inclusions in the aluminium matrix. Dissolution of the Fe Cr alloy base into pure aluminium causes a three-fold decrease in layer thickness compared with the case where no dissolution occurs. A simple equation for evaluating the Fe2Al5 layer thickness during dissolution is proposed. Making the Fe Cr alloy-to-aluminium transition joints, with the mechanical strength of the joint greater than or equal to that for pure aluminium (70-80 MPa), appears to be feasible. (C) 2004 Kluwer Academic Publishers.
机译:在包含10质量%和25质量%Cr的铁铬合金与700℃下的饱和铝熔体之间的界面处出现两个金属间层Fe2Al5和Fe2Al7。在同时溶解在纯液态铝中的条件下,只有Fe2Al5相形成粘附的连续层,而Fe2Al7,FeAl3,FeAl6,CrAl7和其他相作为夹杂物存在于铝基质中。与不发生溶解的情况相比,Fe Cr合金基体在纯铝中的溶解导致层厚度降低了三倍。提出了用于评估溶解过程中Fe2Al5层厚度的简单方程式。制作具有机械强度大于或等于纯铝(70-80 MPa)的Fe Cr合金-铝过渡接头的方法似乎是可行的。 (C)2004 Kluwer学术出版社。

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