A method for preparing high-throughput fine-grain strengthened metal material samples

Abstract

The invention discloses a preparation method of a high-flux fine-grain reinforced metal material sample. The method comprises the following steps: firstly processing a metal material into a variable-section sample; then applying external force and carrying out plastic deformation of the sample in a section gradient direction under the temperature of 4-1273K so as to obtain a gradient deformation structure; and finally carrying out heat treatment on the sample for the set time under the set temperature to obtain the high-flux fine-grain reinforced metal material with different grain sizes in the section gradient direction. The method has the advantages that the method is capable of obtaining the high-flux fine-grain reinforced metal material with different grain sizes in the section gradient direction after processing the metal material into the variable-section sample and then carrying out plastic deformation in the section gradient direction and heat treatment; compared with the conventional method which is only capable of preparing a fine-grain reinforced metal material with one type or limited types of grain sizes, the time and the cost for preparing the metal material with different grain sizes are reduced; and the method provides support for preparing a high-flux bulk material in material genetic engineering.

Description

technical field [0001] The invention relates to the field of metal material structure preparation, in particular to a method for preparing high-throughput fine-grain strengthened metal material samples. Background technique [0002] The traditional material research methods relying on scientific intuition and trial and error have increasingly become the bottleneck of social development and technological progress. Innovating materials research and development methods and accelerating the process of materials from research to application have become the common needs of all countries in the world. To this end, the United States began to implement the Materials Genome Initiative (MGI) in 2011, and then China, the European Union, Japan and Russia also launched related research programs based on materials genetic engineering. The basic idea of ​​material genetic engineering is to use the concept of biological genome to study the basic properties of materials such as composition, ...

AI Technical Summary

Problems solved by technology

Different from the fine-grained strengthened metal materials with one or a limited variety of grain sizes prepared by the above-mentioned traditional methods, high-throughput fine-grained strengthened metal materials require the integration of multiple or unlimited grain sizes on the same material, In order to provide a material basis for subsequent high-throughput experiments, my country is still almost blank in the preparation of high-throughput fine-grain strengthened metal materials.

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