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In-situ temperature loading device for neutron diffraction

A technology of in-situ temperature and loading device, which is applied in the direction of applying stable tension/pressure to test the strength of materials, etc., can solve the problem that the measurement process cannot meet the high temperature tensile test, etc., and achieve the effect of small overall structure and reliability.

Inactive Publication Date: 2016-03-09
INST OF NUCLEAR PHYSICS & CHEM CHINA ACADEMY OF
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to overcome the deficiency that the measurement process cannot meet the national standard of high temperature tensile test due to the structural defect of the device in the prior art, the present invention provides a neutron diffraction in-situ temperature loading device, which can realize in-situ mechanical loading with the outside The device is used in combination, and the deformation of the sample can be directly measured by the high temperature extensometer

Method used

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  • In-situ temperature loading device for neutron diffraction
  • In-situ temperature loading device for neutron diffraction
  • In-situ temperature loading device for neutron diffraction

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Embodiment 1

[0025] figure 1 is the front view of the in-situ temperature loading device for neutron diffraction of the present invention; figure 2 It is the right side view of the in-situ temperature loading device for neutron diffraction of the present invention; image 3 It is a front view of the structure of the furnace cavity in the present invention; Figure 4 It is the right side view of the structure of the furnace cavity in the present invention. exist Figure 1 to Figure 5 Among them, an in-situ temperature loading device for neutron diffraction in the present invention includes a furnace cavity 1, a base 2, an incident window plate 3, an exit window plate 4, a high-temperature extensometer 5, a foot A window film 6, and a foot B window film 7, left fixture 8, right fixture 9, left fixture gasket 10, right fixture gasket 11, left cooling water jacket 12, right cooling water jacket 13, upper cooling water jacket 14. The furnace body cavity 1 is provided with a neutron inciden...

Embodiment 2

[0038] The structure of this embodiment is the same as that of Embodiment 1, except that the material of the incident window plate 3 and the exit window plate 4 is made of pure aluminum, the diameter of the left clamp 8 and the right clamp 9 is 40 mm, and internal threads are provided on both sides. The diameter of the furnace body cavity 1 is 20 mm; the diameter of the two fixture holes of the furnace body cavity 1 is 42 mm, and the inner diameter of the furnace body cavity 1 is 45 mm.

[0039] After the above implementation, the present invention can carry out temperature loading on a relatively large metal rod-shaped standard sample with a diameter of 10 mm, and together with an external in-situ mechanical stretching device, can carry out neutron diffraction in-situ on a thermal neutron diffraction spectrometer Neutron measurement experiment in temperature-mechanical complex environment.

Embodiment 3

[0041] The structure of this embodiment is the same as that of Embodiment 2, except that one end of the left side clamp 8 and one end of the right side clamp 9 are respectively connected to the external fixed bracket by threads, and the other end of the left side clamp 8, The other end of the right clamp 9 is connected with the sample.

[0042] After the above-mentioned implementation, the present invention can carry out temperature loading on a relatively large metal rod-shaped standard sample with a diameter of 10 mm, and can carry out neutron measurement experiments under the in-situ temperature environment of neutron diffraction on a thermal neutron diffraction spectrometer.

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Abstract

The invention provides an in-situ temperature loading device for neutron diffraction. The device comprises a furnace body cavity, a base, an incidence window plate, an emergence window plate, a high-temperature extensometer, a support leg A window film, a support leg B window film, a left-side fixture, a right-side fixture, a left-side fixture gasket, a right-side fixture gasket, a left-side cooling water jacket, a right-side cooling water jacket and an upper cooling water jacket. The device is characterized in that a neutron incidence hole, a neutron emergence hole, two fixture holes and two extensometer measuring support leg insertion holes are formed in the furnace body cavity, so that measurement neutrons can pass through directly, and meanwhile sample deformation can be measured in real time. When the in-situ temperature loading device is applied to a neutron diffraction in-situ mechanics-temperature composite environment loading experiment conforming to the national high-temperature tensile test standard together with a neutron diffractometer and a neutron diffraction in-situ mechanics device, the acting mechanism of a temperature-mechanics composite condition on the internal microstructure of a sample material is facilitated.

Description

technical field [0001] The invention belongs to the technical field of environmental loading in the application of neutron diffraction, and in particular relates to an in-situ temperature loading device for neutron diffraction. Background technique [0002] Neutron diffraction technology has non-destructive testing and deep penetration characteristics, and can directly measure the internal microstructure and stress distribution of centimeter-level metal materials. When studying the influence mechanism of the temperature and mechanical composite environment on the internal microstructure of the sample material, it is necessary to use the in-situ temperature and mechanical loading device to load the sample according to the national standard of high temperature tensile test, and then use neutron diffraction The spectrometer measures the microstructure inside the sample. At present, domestic neutron diffraction technology is in its infancy, and there are few in-situ environment...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/18
Inventor 庞蓓蓓周宁生王挺孙光爱王虹张昌盛
Owner INST OF NUCLEAR PHYSICS & CHEM CHINA ACADEMY OF
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