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High-frequency fatigue testing device and micro-topography observing device

A technology for fatigue testing and observation devices, which is applied in the direction of measuring devices, application of repeated force/pulsation force to test material strength, instruments, etc., can solve the problems of reciprocating loading and tensile fatigue test equipment that cannot be used at high frequencies, and achieve easy operation, The effect of simple structure and small volume

Active Publication Date: 2016-07-06
香港城市大学深圳研究院
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Problems solved by technology

[0005] In order to overcome the problem that the tensile fatigue test equipment in the prior art cannot be subjected to high-frequency reciprocating loading, the present invention provides a high-frequency fatigue test device and a microscopic morphology observation device. The high-frequency fatigue test device has a simple structure and is suitable for various The size of the sample can be tested, strong adaptability, and the space is compact, easy to observe

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  • High-frequency fatigue testing device and micro-topography observing device
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  • High-frequency fatigue testing device and micro-topography observing device

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Embodiment Construction

[0020] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0021] A high-frequency fatigue testing device, including two chucks 11 and a drive system, the two chucks 11 are arranged at a certain distance, and the two chucks 11 can fix a test sample 10 of micro-nano size to the two chucks 11 Between, this drive system can drive two collets 11 to do simple harmonic motion simultaneously along the line direction between two collets 11, and this drive system includes motor 13, as Figure 1 to Figure 3 shown.

[0022] Because the motor 13 is used to drive, the high-frequency fatigue test can be realized. In the high-frequency fatigue test device, the movement frequency of the chuck 11 is 50-1500 times per minute. In this embodiment, two chucks 11 are arra...

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Abstract

The invention provides a high-frequency fatigue testing device and a micro-topography observing device.The high-frequency fatigue testing device comprises two collets (11) and a driving system.The two collets (11) are arranged in a certain-distance mode; a test sample (10) can be fixed between the two collets (11); the driving system can drive the two collets (11) to perform simple harmonic motion in the connecting direction between the two collets (11), and comprises a motor (13).The high-frequency fatigue testing device is simple in structure, capable of testing samples with multiple sizes, high in adaptability, compact in space structure and convenient to observe.The high-frequency fatigue testing device can be further matched with a microscopy imaging instrument (such as a scanning electron microscope (SEM) and an optical microscope (OM)) to form the micro-topography observing device, and therefore a tested piece is subjected to an in-situ micro-nano fatigue mechanical performance test.

Description

technical field [0001] The invention relates to the field of fatigue tensile test equipment, in particular to a high-frequency fatigue test device, and a microscopic morphology observation device containing the high-frequency fatigue test device. Background technique [0002] With the development of nanotechnology, micro-nano materials are widely used in aerospace, automotive industry, semiconductor, biomedicine, MEMS, polymer, solar energy / fuel cell chemical industry, petroleum, rock, microelectronics, microsensors, semiconductor materials, Automatic control, aerospace, automotive industry and machine tools. The microscopic mechanical properties of materials are quite different from the macroscopic classical mechanical properties. Among the many performance parameters of the micro-nano mechanical test of materials, the fatigue performance parameter test of materials is one of the very important test objects. [0003] In order to organically combine the measurement of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/32
CPCG01N3/32G01N2203/0005G01N2203/0017G01N2203/0037G01N2203/0073
Inventor 申亚京张立军
Owner 香港城市大学深圳研究院
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