Electrothermal coupling processing system for characterizing phase transformtaion behavior of material

Abstract

The invention discloses an electrothermal coupling processing system for characterizing a phase transformation behavior of a material. The processing system comprises a power supply system, an execution system and a data acquisition and control system, wherein the power supply system comprises a power supply source and a connecting lead; the execution system mainly comprises a differential scanning calorimeter; the data acquisition and control system mainly comprises a processor; two ends of a test material in the differential scanning calorimeter are respectively connected with a first lead copper wire and a second lead copper wire; the test material is fastened at the inner bottom of a first ceramic crucible; the first ceramic crucible is arranged on a to-be-measured sample platform; a second ceramic crucible is placed on a reference sample platform and is internally hollow; a microcomputer is respectively connected with a temperature thermocouple, a heat flux signal detector and the processor. The electrothermal coupling processing system for characterizing the phase transformation behavior of the material is capable of not only realizing characterization of the phase transformation behaviors of the material under effects of currents different in intensity, realizing aging treatment of the material under electrothermal coupling loads different in strength.

Description

technical field [0001] The invention relates to the field of material phase transition behavior characterization and aging treatment equipment, in particular to an electric-thermal coupling processing system for material phase transition behavior characterization. Background technique [0002] Phase transition refers to the change of the aggregation state of matter when the external conditions change continuously. Phase change is an important physical and chemical phenomenon in materials. Understanding and mastering the characteristics, laws and influencing factors of phase change is very important for developing and developing new materials, giving full play to the potential of existing materials, evaluating material performance degradation, and judging the failure mode of materials. etc. have very important reference significance. In order to understand and master the phase transition characteristics and laws of materials and components composed of materials, it is partic...

AI Technical Summary

Problems solved by technology

However, it is difficult to realize the characterization of the phase transition behavior of materials under the action of current by the existing means of phase transition behavior characterization, especially the quantitative study of the dynamic behavior of the phase transition of materials under the action of current.

[0004] Most of the current electric-thermal coupling processing equipment is designed for larger-sized materials, such as "a steel strip heat treatment device for direct heating of the pressing plate electrode" (Chinese invention patent application CN 101979677A) invented by Lin Mingzhong. The device for electric-thermal coupling treatment of steel strip, the "electrical heating device for rack" invented by Miyazaki Power (Chinese invention patent application CN 104775016A) is essentially an electric-thermal coupling treatment device for rack, invented by Hirata Yuichi et al. Spring Electric Heating Method and Its Device" (Chinese Invention Patent Application CN 102834530A) is essentially a spring electric-thermal coupling processing method and its device. The core of these electric-thermal coupling processing devices is through the connection of electrodes and materials. The material is energized to realize the electric-thermal coupling treatment of the material. Because the size of the electric-thermal coupling processing device and the electrode size (any one-dimensional size is larger than the millimeter scale) are large, it is only suitable for larger sizes (any one-dimensional size is larger than the millimeter scale) It is difficult to apply to materials with three-dimensional scales of millimeter or micron scale, and it is impossible to characterize the phase transition behavior of materials on these electro-thermal coupling processing devices

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