High-strength alloy and preparation method thereof

Abstract

The invention discloses high-strength alloy which is prepared from the following components in percentage by mass: 3.5-4.25 percent of iron, 8.2-10.39 percent of nickel, 2.5-3.7 percent of manganese, 1.12-1.38 percent of boron, 0.2-0.33 percent of tellurium, 2.5-3.8 percent of tungsten, 0.44-0.62 percent of platinum, 0.18-0.25 percent of scandium, 0.12-0.22 percent of holmium, 0.13-0.19 percent of rhenium and the rest of aluminum. The alloy is prepared by vacuum melting, refining, pressure casting, heat treatment and aging. Due to the reasonable preparation of components and contents, the aluminum alloy has enough mechanical property, particularly the mechanical property suitable for heavy load and high temperature usage environments; meanwhile, the process parameters of pressure casting and the pressure parameters of inert gases during refining are optimally selected, and the mechanical property of the alloy is improved.

Description

technical field [0001] The invention relates to a high-strength alloy and a preparation method thereof, belonging to the field of alloy manufacturing. Background technique [0002] Die-casting is a kind of pressure-casting part. It uses a pressure-casting mechanical die-casting machine with a casting mold installed, and pours metals such as copper, zinc, aluminum or zinc alloy heated into a liquid state into the feed port of the die-casting machine, and passes through the die-casting machine. Die casting, casting copper, zinc, aluminum parts or zinc alloy parts of the shape and size limited by the mold, such parts are usually called die castings. Die-casting parts have different names in different places, such as die-casting parts, pressure castings, die-casting parts, die-casting aluminum, die-casting zinc parts, die-casting copper parts, copper die-casting parts, zinc die-casting parts, aluminum die-casting parts aluminum die-casting parts, aluminum die-casting parts Allo...

AI Technical Summary

Problems solved by technology

[0003] The content of each element in the existing die-casting is different, so the spatial distribution of each element in the alloy is quite different, resulting in different comprehensive properties of each alloy, especially the large difference in mechanical properties