Method for preparing textured high-toughness blocky material

Abstract

The invention discloses a method for preparing a textured high-toughness blocky material. According to the method, a compound process combing quenching melt spinning process with a pressure solid phase sintering process is adopted, melt-spinning is conducted on high-vacuum single-roller spinning equipment, a polished alloy material is inserted into a quartz tube of an induction coil of the equipment, a vacuum pump is started for vacuumizing, current of the induction coil is switched on, after a solid material is inductively melted into the liquid state, an argon valve is opened, high-purity argon is injected into the quartz tube, the liquid material is injected into water-cooled copper roller, and a textured thin strip is obtained; and the intact thin strip is selected and sequentially stacked in a graphite die, a graphite female die body and the strip are partitioned through graphite paper, the two ends are sealed with graphite gaskets and graphite pressure heads, the graphite die where the thin strip is stacked is put into a sintering furnace to be sintered, and the compact textured high-toughness blocky material which is capable of effectively controlling the grain and the oriented texturing is obtained.

Description

technical field [0001] The invention relates to the technical field of material preparation, in particular to a method for preparing a textured high-toughness bulk material. Background technique [0002] In different crystallographic directions, the properties of single crystal materials will show significant differences in all aspects. This phenomenon is called anisotropy. The use of this anisotropic property expands and improves the application and use of various materials. performance. However, the preparation of single crystal materials is difficult and costly, which restricts the practical application of materials. The formation of texture in the polycrystalline material makes the polycrystalline material anisotropic, and the preparation is relatively easy and the cost is relatively low, so it has broad practical application prospects. [0003] At present, the methods for preparing polycrystalline materials with texture mainly include directional solidification method...

AI Technical Summary

Problems solved by technology

Although this method can obtain high-strength, high-ductility, high-toughness hypoeutectic Al-Si alloys, this process requires hot deformation, but it is not suitable for brittle materials

Polycrystalline high-toughness materials with texture have great application prospects. The materials obtained by traditional directional solidification process often have insufficient mechanical properties, and the preparation method of large deformation is not suitable for brittle materials.

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