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Technique for enhancing amorphous forming ability of alloy melt

A process method and alloy technology, applied in the field of solid-state amorphous alloy preparation process, can solve the problems of increasing the difficulty of rapid solidification process, lack of effective technical methods, etc., and achieve the improvement of quality and macroscopic physical properties, high technical reliability, and easy implementation. Effect

Active Publication Date: 2016-09-28
江苏非晶电气有限公司 +2
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

The main disadvantage of this method is that during the solidification process, it is necessary to adjust and increase the cooling rate and process parameters according to the selected alloy melt temperature, which increases the difficulty of the rapid solidification process.
[0006] In summary, although the amorphous formation ability of alloy melt is very important to obtain high-quality amorphous solid alloy, there is still a lack of effective technical methods to improve the amorphous formation ability of alloy melt. One of the key and important scientific and technological issues that have not been resolved

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  • Technique for enhancing amorphous forming ability of alloy melt
  • Technique for enhancing amorphous forming ability of alloy melt
  • Technique for enhancing amorphous forming ability of alloy melt

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Embodiment 1

[0033] Embodiment 1: Taking the preparation of Fe-Si-B amorphous solid alloy thin strip as an example, the amorphous solid alloy thin strip is prepared by the high-speed planar flow continuous casting method commonly used in this field. The specific operation steps of a process method for improving the amorphous forming ability of alloy melt proposed by the present invention are as follows:

[0034] Step 1: (1) Select the superheating temperature of the Fe-Si-B alloy melt to be 1950°C, and the temperature range of thermal cycle treatment is 1200-1950°C; (2) Use a high-temperature viscosity measuring instrument (product of GBX company, model: Viscodrop 2000) to measure the melt viscosity, the heating and cooling speed of the Fe-Si-B alloy melt is 10°C / min, in order to ensure the accuracy of the viscosity measurement, keep warm for 1 hour at each measurement temperature, and then measure. The resulting viscosity change with temperature is characterized by figure 2 As shown, it...

Embodiment 2

[0039] Embodiment 2: Taking the preparation of Fe-Si-B amorphous solid alloy thin strip as an example, the amorphous solid alloy thin strip is prepared by the high-speed planar flow continuous casting method commonly used in this field. The specific operation steps of a process method for improving the amorphous forming ability of alloy melt proposed by the present invention are as follows:

[0040] Step 1: (1) Select the superheating temperature of the Fe-Si-B alloy melt to be 1550°C, and the temperature range of thermal cycle treatment to be 1200-1550°C; (2) Use a high-temperature viscosity measuring instrument to measure the melt viscosity, Fe-Si The heating and cooling speeds of the -B alloy melt are both 10°C / min. In order to ensure the accuracy of the viscosity measurement, the temperature is kept at each measurement temperature for 1 hour before measurement. The resulting viscosity change with temperature is characterized by figure 2 As shown, it shows the viscous phe...

Embodiment 3

[0045] Embodiment 3: Taking the preparation of Fe-Si-B amorphous solid alloy thin strip as an example, the amorphous solid alloy thin strip is prepared by the high-speed planar flow continuous casting method commonly used in this field. The specific operation steps of a process method for improving the amorphous forming ability of alloy melt proposed by the present invention are as follows:

[0046] Step 1: (1) Select the superheating temperature of the Fe-Si-B alloy melt to be 1350°C, and the temperature range of thermal cycle treatment to be 1200-1350°C; (2) Use a high-temperature viscosity measuring instrument to measure the melt viscosity, the melt The heating and cooling speeds are both 10°C / min. In order to ensure the accuracy of the viscosity measurement, the temperature is kept at each measurement temperature for 1 hour before the measurement. The resulting viscosity change with temperature is characterized by figure 2 As shown, it shows the viscous phenomenon after ...

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Abstract

The invention relates to a technique for enhancing amorphous forming ability of an alloy melt. The technique is characterized by comprising the following steps: 1. measuring the viscous characteristic of an superheating circulation treatment alloy melt; 2. establishing the relation between the superheating circulation treatment temperature and alloy melt viscous characteristic of the Fe-Si-B alloy melt; 3. selecting the Fe-Si-B alloy melt superheating treatment temperature, and carrying out heat treatment; and 4. cooling the Fe-Si-B alloy melt subjected to superheating treatment to the set melt temperature, and quickly setting to obtain the solid amorphous alloy. The technique can enhance morphous forming ability of lloy melt and lower morphous solid alloy preparation difficulty by utilizing the viscous characteristic of the superheating treatment on the premise of not changing lloy composition and quick setting technological conditions. The technique has dvantages of low implementation cost, high efficiency, high controllability, high repetitiveness, high technical reliability and the like, and can be widely used in the technical field of metal functional material preparation.

Description

technical field [0001] The invention belongs to the technical field of metal functional material preparation, and in particular relates to a preparation process method of a solid amorphous alloy which improves the ability of alloy melt to form amorphous. Background technique [0002] The solidified alloy melt can be either crystalline or amorphous, depending on whether the structure of the alloy melt is preserved into the solid alloy. Therefore, the amorphous forming ability of the alloy melt depends on how much melt structure is retained in the solid alloy, and the more melt structure is retained in the solid alloy, the stronger the amorphous forming ability of the alloy melt is. Conversely, the less the melt structure remains in the solid alloy, the weaker the amorphous formation ability of the alloy melt is. If the structure of the alloy melt cannot be preserved into the solid amorphous alloy, it means that the alloy melt has no amorphous-forming ability. The transforma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C45/02B22D11/06
Inventor 王岩国
Owner 江苏非晶电气有限公司
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