High-strength heat-resistant Al-Fe-Cr-Ti alloy, preparation method and application

Abstract

The invention discloses a high-strength heat-resistant Al-Fe-Cr-Ti alloy, a preparation method and application, and belongs to the technical field of metal materials. The high-strength heat-resistant aluminum alloy base material comprises the following components in percentage by weight: 4.0 to 7.0 percent of Fe, 2.5 to 6.0 percent of Cr, 2.5 to 6.0 percent of Ti, 3.0 to 7.5 percent of Co, 0.5 to 2.5 percent of rare earth La, Ce, Nd and Y, and the balance of Al and inevitable impurities. By controlling the contents of the alloy elements Fe, Cr and Ti and adding the key alloy element Co and the rare earth La, Ce, Nd and Y to be matched with the alloy components, the processing mode of spray deposition and extrusion is developed, and meanwhile, by controlling the key processing technology, the prepared product has excellent comprehensive performance and heat resistance.

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