Neutron diffraction high-temperature goniometer and special mechanical loading device thereof

Abstract

The invention relates to a neutron diffraction high-temperature goniometer and a special mechanical loading device thereof and belongs to the field of mechanics performance testing of materials. The neutron diffraction high-temperature goniometer comprises a high-temperature goniometer unit and a special mechanical loading unit, wherein the goniometer unit enables a mechanical loading system unit to rotate, and a tilted rotation operation at 0-90 degrees can be realized on a test piece; the mechanical loading system unit also can implement a free rotation operation on the test piece at 0-360 degrees around the axis of the mechanical loading system unit, and a need for different diffraction angles is met; the mechanical loading system unit integrates a halogen heating lamp, a grating scale and the like, heats the test piece and measures the deformation generated by the test piece; a control system unit can realize online real-time adjustment of goniometer parameters, mechanical loading indexes, heating temperature, etc. The invention has the advantages that the device can realize accurate control on the rotation of a measured sample in two directions under a mechanical loading condition; stepless closed-loop temperature control on the measured sample from room temperature to 1,000 DEG C can be realized under a condition of meeting the requirement on the beam angle of a neutron diffraction stress spectrometer.

Description

technical field [0001] The invention relates to the field of material mechanics testing, in particular to a neutron diffraction high temperature goniometer and a special mechanical loading device thereof. The present invention is applicable to, but not limited to, neutron diffraction stress spectrometers. It can simultaneously perform high temperature and large load tensile / compression mechanical load loading on the sample, and at the same time, it has the function of realizing the rotation of the sample around its own axis from 0° to 360° and the tilt positioning from 0° to 90°. The present invention is used together with a neutron diffraction stress spectrometer to qualitatively and quantitatively describe the three-dimensional stress distribution, texture distribution, deformation behavior, damage mechanism and performance evolution phenomenon inside the material under the condition of large load and thermal field loading. Background technique [0002] With the progress ...

AI Technical Summary

Problems solved by technology

According to data, among many factors that affect the level of material testing and testing, the lack of testing technology and instruments close to service conditions is a technical bottleneck restricting the development of new materials and the development of high-end equipment manufacturing

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