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Preparation method of dumbbell-shaped iron base block metal glass sample

A bulk metal, dumbbell-shaped technology, used in metal processing equipment, manufacturing tools, casting and molding equipment, etc., can solve the problem of inability to prepare fully amorphous dumbbell-shaped tensile specimens.

Active Publication Date: 2017-02-22
CHINA UNIV OF MINING & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a method for preparing a dumbbell-shaped iron-based bulk metallic glass sample, so as to solve the problem that a dumbbell-shaped tensile sample with a completely amorphous structure cannot be prepared in the prior art

Method used

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  • Preparation method of dumbbell-shaped iron base block metal glass sample
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  • Preparation method of dumbbell-shaped iron base block metal glass sample

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Embodiment

[0022] The preparation method of the dumbbell-shaped iron-based bulk metallic glass sample of the present embodiment comprises the following steps:

[0023] (1) Preparation of master alloy ingot: the chemical formula of master alloy ingot is Fe 80-x (Co, Ni, Cr, Mo) x (P,B) y (C, Si) z , wherein, y+z=20; the raw materials for preparing the above master alloy ingot are: Fe particles (purity 99.98%), Ni particles (purity 99.7%), Fe 3 P powder (purity 99.9%), Cr powder (purity 99.9%), Mo powder (purity 99.9%), B particles (purity 99.9%), Si powder (purity 99.99%) and graphite powder (purity 99.9995%). According to the set alloy composition, the precision is 10 in proportion -5 After weighing the medicine on the electronic balance of g, put the medicine into the pre-washed and dried quartz glass tube, connect the quartz glass tube to the experimental device to evacuate, and the vacuum degree in the quartz glass tube is below 30Pa. Fill the quartz glass tube with high-purity A...

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Abstract

The invention discloses a preparation method of a dumbbell-shaped iron base block metal glass sample. Firstly, a master alloy ingot is prepared; then, the prepared master alloy ingot is purified; a quartz pipe is used for blowing out a dumbbell shape to prepare a dumbbell-shaped quartz pipe; finally, the purified master alloy ingot is put in the dumbbell-shaped quartz pipe; and then, an internal melt is quenched by water to prepare the dumbbell-shaped metal glass sample. The method is unique method capable of preparing the iron base metal glass dumbbell-shaped sample at present. The prepared dumbbell-shaped metal glass sample can perform a stretching test to widen the research range of the iron base metal glass mechanical performance to represent the iron base metal glass mechanical performance more intrinstically. The method for preparing the dumbbell-shaped iron base metal glass sample can fill blank of the research blank in the direction, and is hopeful to achieve breakthrough results.

Description

technical field [0001] The invention belongs to the technical field of metallic glass, and in particular relates to a preparation method of a completely amorphous iron-based bulk metallic glass dumbbell-shaped tensile sample. Background technique [0002] Metallic glass is a new type of amorphous alloy material. Its atomic arrangement does not have three-dimensional periodicity, but it still shows a certain order within a few atomic distances. It has excellent physical, chemical, and mechanical properties. It is expected to It will become a key material to support high-tech industries such as precision machinery, information, aerospace, and defense industries in the future. Iron-based metallic glass is a type of metallic glass system with the largest atomic percentage of iron in the component. The saturation magnetization is 1.0-1.7T, the coercive force can be lower than 1.0A / m, the magnetic permeability can reach 450,000, and the soft magnetic properties are far superior. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C45/02B22C9/22
CPCB22C9/22C22C33/003C22C45/02
Inventor 杨卫明刘海顺陈培见赵玉成
Owner CHINA UNIV OF MINING & TECH
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