Tension and torsion composite in-situ tester applicable to neutron diffraction Euler ring

Abstract

The invention belongs to the technical field of neutron diffraction, and particularly relates to a tension and torsion composite in-situ tester applicable to a neutron diffraction Euler ring. The tension and torsion composite in-situ tester comprises a driving unit and a test sample tension unit which are arranged on a bottom plate by a supporting seat; the driving unit drives the test sample tension unit to carry out a tension test on a test sample by a transmission unit; a displacement detection unit is arranged on the driving unit; the displacement detection unit is used for detecting a displacement generated by the test sample in the tension test; the test sample tension unit is provided with a load test device for measuring a tension for carrying out tensioning on the test sample; thetension and torsion composite in-situ tester further comprises a central controller; and the central controller is used for calculating a displacement signal provided by the displacement detection unit and a tension signal provided by the load test device and outputting after carrying out analog conversion. The device implements online in-situ test on texture distribution of internal crystal grains of a material by a neutron diffraction method, and effectively solves the problem that existing mechanical test equipment is large in volume and complex in structure, can only carry out offline measurement and is high in maintenance cost.

Description

technical field [0001] The invention belongs to the technical field of neutron diffraction, and in particular relates to a pull-torsion compound in-situ tester suitable for neutron diffraction Euler rings. Background technique [0002] The study of the internal texture of polycrystalline materials by neutron diffraction technology is of great significance for industrial applications and new material development. The neutron diffraction method has the advantages of low absorption coefficient, strong ability to penetrate samples, high measurement accuracy, and the ability to measure magnetic structures. It is widely used in aerospace, nuclear power and other fields. [0003] Materials will be subjected to different degrees of stress during service, which will affect the material. The macroscopic mechanical properties of polycrystalline materials mainly depend on the orientation distribution of internal grains, so it is necessary to analyze the microscopic grain arrangement of...

AI Technical Summary

Problems solved by technology

Traditional material mechanics tests are all done off-site on large-scale testing machines. At the same time, the existing in-situ test devices can only provide a single tensile or torsional load, and cannot study the atomic structure or Changes in Magnetic Structure

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