Environment-controllable scratch test on-site testing device and control method thereof
A scratch test and test device technology, applied in the direction of measuring devices, mechanical devices, instruments, etc., can solve the problems of not considering the influence of environmental binding force, reducing the accuracy of scratch tests, and being unable to effectively judge the critical load, etc. Achieve the effect of improving accuracy and accurate measurement
Inactive Publication Date: 2015-12-23
TSINGHUA UNIV
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However, the scratch test generally uses abrupt friction or acoustic emission signals as the evaluation parameters. Due to the complexity of the surface morphology and mechanical properties of the film, it is often impossible to effectively judge the critical load. At the same time, the scratch test does not consider the impact of the environment. The influence of the binding force, which reduces the accuracy of the scratch test
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[0025] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention, but should not be construed as limiting the present invention.
[0026] In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, "plurality" means two or more than two, unless specifically defined otherwise.
[0027] In the present inventi...
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The invention discloses an environment-controllable scratch test on-site testing device and a control method thereof. The testing device comprises a two-dimensional force sensor, an acoustic emission sensor, a scratch head driver, an environment parameter regulation module, a driver control module, a variable-power microscope and a control module. The scratch head driver is used for driving a scratch head to move at a certain speed and linearly increase the initial load, and therefore scratches are generated on the surface of an object to be tested. The environment parameter regulation module is used for regulating environment parameters of the environment where the object to be tested is located. The driver control module controls the scratch head to horizontally move under certain temperature and humidity according to the load fed back by the two-dimensional force sensor. The variable-power microscope is used for detecting morphology of the scratches. The control module is used for obtaining the binding force under certain temperature and humidity so as to obtain the morphology when the object to be tested cracks. By means of the testing device, the critical load can be effectively judged, accuracy of scratch tests is improved, and measurement of the scratch tests under the given environment can be accurately achieved.
Description
Technical field [0001] The invention relates to the technical field of solid coatings, in particular to an environmentally controllable scratch test on-site test device and a control method thereof. Background technique [0002] At present, the experimental methods for determining the binding force of the test object and the substrate mainly include friction polishing experiment, shot peening experiment, bending experiment, tensile experiment, indentation experiment and scratch experiment. Among them, the scratch experiment has the advantages of simple operation, intuitive, quantifiable comparison, etc., which is adopted by most countries. However, the scratch experiment generally uses mutation friction or acoustic emission signals as the judgment parameter. Due to the complexity of the surface morphology and mechanical properties of the film, the critical load is often not effectively judged. At the same time, the scratch experiment does not consider the environmental impact. T...
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IPC IPC(8): G01N19/04
Inventor任婧秦力邓明明王鸿栋王水生
OwnerTSINGHUA UNIV