In-situ nano-indentation tester based on adjustable stretching-bending preload

A nano-indentation and preload technology, which is applied in the direction of applying stable bending force to test material strength, using stable tension/pressure to test material strength, and testing material hardness, etc., to achieve good neutrality, easy to observe and image. The effect of recording

Active Publication Date: 2013-09-18
JILIN UNIV
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Problems solved by technology

Compared with the single out-of-position test of the traditional mechanical testing machine, the present invention can realize in-situ composite test and observation of tensile bending indentation for macroscopic specimens with charact

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  • In-situ nano-indentation tester based on adjustable stretching-bending preload
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  • In-situ nano-indentation tester based on adjustable stretching-bending preload

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Embodiment Construction

[0040] The detailed content of the present invention and its specific implementation will be further described below in conjunction with the accompanying drawings.

[0041] see Figure 1 to Figure 9 As shown, the in-situ nano-indentation tester based on the adjustable tensile-bending preload of the present invention includes an in-situ nano-indentation test module, a tensile preload loading module and a bending preload loading module. The indentation test module is composed of a precision displacement / force loading unit and a load / displacement signal detection unit; the tensile preload loading module is composed of a precision drive unit, a precision transmission unit, a load / displacement signal detection and control unit, and a clamping unit; The preload loading module is composed of a precision drive unit, a precision transmission unit, a load / displacement signal detection and control unit. Each subunit forms each module, and finally the whole machine is composed of three mo...

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Abstract

The invention relates to an in-situ nano-indentation tester based on an adjustable stretching-bending preload, and belongs to the field of electromechanical precision scientific instruments. The in-situ nano-indentation tester comprises an in-situ nano-indentation testing module, a stretching preload loading module and a bending preload loading module, wherein the in-situ nano-indentation testing module consists of a precision displacement/force loading unit and a load/displacement signal detection unit; the stretching preload loading module consists of a precision driving unit A, a precision transmission unit A, a load/displacement signal detection and control unit A and a clamping unit A; the bending preload loading module consists of a precision driving unit B, a precision transmission unit B, and a load/displacement signal detection and control unit B. The in-situ nano-indentation tester has the advantages of small size, compact structure and high testing precision; supplied test contents are rich; the deformation/displacement/load rate can be controlled; the in-situ nano-indentation tester can be arranged on carrying platforms of various main-stream electronic microscopic vacuum cavities and is compatible with imaging equipment; the application range is wide.

Description

technical field [0001] The invention relates to the field of mechatronic precision scientific instruments, in particular to an in-situ nano-indentation tester based on an adjustable tensile-bending preload. Background technique [0002] In-situ micro-nano mechanical testing technology refers to the process of testing the mechanical properties of specimen materials at the micro-nano scale, through imaging instruments such as electron microscopes, atomic force microscopes, or optical microscopes, to measure the microscopic deformation, damage, and damage of materials under load. It is a mechanical testing technique for dynamic monitoring of the whole process of failure and destruction. In the category of many nanomechanical tests, parameters such as elastic modulus, yield strength, tensile strength, flexural strength, flexural modulus, hardness, and shear modulus are the most important research objects in the testing of mechanical properties of materials. A variety of tes...

Claims

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Application Information

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IPC IPC(8): G01N3/40G01N3/08G01N3/20
Inventor 赵宏伟袁英堃李烁邹青马志超黄虎史成利崔涛佟达张攀峰
Owner JILIN UNIV
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