Method for acquiring continuous heating translation of bulk amorphous alloy

A technology of amorphous alloy and acquisition method, applied in the field of acquisition of continuous heating phase transformation curve, can solve problems such as large critical heating rate, and achieve the effects of high accuracy, easy implementation, and improved weldability

Inactive Publication Date: 2018-12-14
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology

[0007] At present, the main method of researching the thermal characteristics of amorphous alloys is to use DSC thermal difference analysis method. The maximum heating rat...

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  • Method for acquiring continuous heating translation of bulk amorphous alloy
  • Method for acquiring continuous heating translation of bulk amorphous alloy
  • Method for acquiring continuous heating translation of bulk amorphous alloy

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Embodiment Construction

[0038] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0039] see figure 1 , the acquisition method of the continuous heating phase transition curve of bulk amorphous alloy provided by the present invention, the acquisition method is based on the critical position of the sample under different heating times to obtain the thermal cycle curve, and then obtain the amorphous The CHT curve of the material.

[0040] The method for obtaining the continuo...

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Abstract

The invention belongs to the related technical field of connection of a bulk amorphous material and discloses a method for acquiring continuous heating translation of a bulk amorphous alloy. The method comprises the following steps: (1) using a laser point heat source to heat the bulk amorphous alloy to acquire a series of samples at different heating times and critical points of crystallization and decrystallization of the samples, thus acquiring a plurality of critical points; (2) acquiring the distance between the critical point and the corresponding laser point heat source through metallographic analysis, further simulating a thermal cycle curve of the critical point; (3) acquiring part of the continuous heating translation of the bulk amorphous alloy through a DSC (Differential Scanning Calorimetry) experiment, and further fitting with points of tangency of a plurality of thermal cycle curves and the continuous heating translation to obtain the continuous heating translation of the bulk amorphous alloy. The method can accurately acquire the continuous heating translation of the bulk amorphous alloy, guarantees the amorphous state of a welding joint, and is stronger in practicality.

Description

technical field [0001] The invention belongs to the technical field related to the connection of bulk amorphous materials, and more specifically relates to a method for obtaining a continuous heating phase transition curve of bulk amorphous alloys. Background technique [0002] Once the amorphous alloy appeared, it attracted the attention of many material application workers with its excellent performance. However, the limited size, difficulty in processing and poor weldability make amorphous alloys always stay on the concept of "great application potential or prospect". Although the bulk amorphous alloy has a relatively wide supercooled liquid phase region and strong amorphous forming ability, it solves the first two problems well, making the bulk amorphous alloy widely used in electronic products and sports equipment. Although it has been successfully applied, the connection of amorphous alloys is still a worldwide problem so far. [0003] Amorphous alloys are prone to c...

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Application Information

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IPC IPC(8): G01N25/02
CPCG01N25/02
Inventor 黄安国庞盛永张林龙杨欢天王凌志
Owner HUAZHONG UNIV OF SCI & TECH
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