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A method for improving room-temperature compression plasticity of amorphous alloys

An amorphous alloy, room temperature technology, applied in the field of metal material preparation, can solve problems such as material failure and fracture, and achieve the effects of adjustable performance, easy availability of materials, and simple mold structure

Active Publication Date: 2020-08-14
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention aims to solve the technical problem that the extremely localized shear band of the existing bulk amorphous alloy rapidly expands, leading to material failure and fracture, and provides a method for improving the room temperature compression plasticity of the amorphous alloy

Method used

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  • A method for improving room-temperature compression plasticity of amorphous alloys
  • A method for improving room-temperature compression plasticity of amorphous alloys
  • A method for improving room-temperature compression plasticity of amorphous alloys

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specific Embodiment approach 1

[0030] Specific implementation mode 1: This implementation mode is a method for improving the room temperature compression plasticity of amorphous alloys, specifically according to the following steps:

[0031] 1. Put the 45# steel pipe into the copper mold, and the outer diameter of the 45# steel pipe is the same as the diameter of the inner hole of the copper mold;

[0032] Two, the alloy melt is fully smelted, then filled into the copper mold of step 1 assembling 45# steel pipe, cooling, taking the material, obtaining a composite material that is a steel pipe on the outside and an amorphous alloy on the inside, and completes the process of improving the room temperature of the amorphous alloy methods of compressive plasticity.

specific Embodiment approach 2

[0033] Embodiment 2: This embodiment differs from Embodiment 1 in that: the inner round hole of the copper mold described in step 1 has a bottomed structure, and the diameter of the round hole is 4 mm to 20 mm. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0034] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that: the inner circular hole of the copper mold described in step 1 has a bottomed structure, and the diameter of the circular hole is 5 mm. Others are the same as in the first or second embodiment.

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Abstract

The invention relates to the field of metal material preparation, in particular to a method for improving the indoor temperature compressing plasticity of an amorphous alloy. The method aims at solving the technical problem that due to the fact that an extremely localized shear band of an existing bulk amorphous alloy is fast expanded, a material fails and cracks. The method comprises the steps of1 assembling and 2 smelting. The technical method for manufacturing an amorphous alloy composite is simple, materials are wide and easy to obtain, the brittleness problem for large-scale industrialized application of the amorphous alloy can be solved well, and large industrialized application prospects are achieved. The method is used for preparing the amorphous alloy with good indoor temperaturecompressing plasticity.

Description

technical field [0001] The invention relates to the field of metal material preparation. Background technique [0002] Due to its high strength, high hardness, corrosion resistance, wear resistance and many other excellent properties at room temperature, bulk amorphous alloys have broad application prospects in the fields of engineering machinery, aerospace, military, biomedicine, energy and the environment. However, the plastic deformation of bulk amorphous alloys mainly comes from extremely localized shear bands. plastic deformation capacity. Therefore, improving room temperature plasticity is a very meaningful research direction in the field of bulk amorphous alloys. [0003] At present, the methods to improve the room temperature plasticity of amorphous alloys mainly include composition control, external or endogenous second phases, and nanocrystallization. The main principle of these methods is to promote the formation of multiple shear bands by changing the internal...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D19/16
CPCB22D19/16
Inventor 黄永江胡星星武洋蒋松山薛鹏范洪波宁志良曹福洋邢大伟孙剑飞
Owner HARBIN INST OF TECH