In-situ stress-temperature loading device for neutron diffraction technology

Abstract

The invention discloses an in-situ stress-temperature loading device for a neutron diffraction technology. A frame in the device is designed into a door frame type structure, a hollow-shaft servomotor is utilized for driving multiple stages of gears with the same specification and the size to rotate via a speed reducer, and the horizontal motion operation of a test sample can be further realized through a guide component and a clamp. By controlling the forward rotation (reverse rotation) of the hollow-shaft servomotor, bidirectional synchronous drawing (compression) of the test sample is realized; and by controlling the rotational speed of the hollow-shaft servomotor, the speed regulation of drawing (compression) of the test sample is realized. A cavity type high-temperature furnace with the design based on a resistance heat radiation structure is matched with the frame to use, a temperature control instrument is used for controlling the temperature in a body cavity of the high-temperature furnace, fan-shaped through holes are respectively formed in the neutron incidence direction and the scattering direction, and quartz glass is further used for sealing. The in-situ stress-temperature loading device for the neutron diffraction technology, disclosed by the invention, can be used on a variety of neutron scattering (diffraction) spectrometers for realizing the neutron scattering (diffraction) in-situ stress-temperature loading testing technology.

Description

technical field [0001] The invention belongs to the technical field of in-situ measurement of material structure and performance in the environment of neutron diffraction combined with stress-temperature loading, and specifically relates to an in-situ stress-temperature loading device for neutron diffraction technology, which is suitable for various pulleys It is a device for measuring the structure and mechanical properties of materials under different stretching (compression) motion modes, different stretching rates and different temperature conditions. Background technique [0002] The neutron diffraction analysis technique is similar to the X-ray analysis method, which calculates the strain according to the displacement of the diffraction peak, and then converts it into a stress result. Compared with the latter, neutrons have obvious advantages in penetration depth and distinguishing adjacent elements. It is generally believed in the industry that neutron diffraction ana...

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Problems solved by technology

[0004] In order to overcome the shortcomings of the existing neutron diffraction technology spectrometer equipped with environmental loading equipment, large volume, heavy mass, and difficulty in popularization, the present invention provides an in-situ stress-temperature loading device for neutron diffraction technology, which can be used in many A small stress-temperature loading device used on a neutron scattering (diffraction) spectrometer, realizing neutron scattering (diffraction) in-situ stress-temperature loading testing technology

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