Fractal dimension obtaining method of coating surface morphology

A surface topography and fractal dimension technology, applied in image data processing, 3D modeling, instruments, etc., can solve problems such as changes and reliability degradation, and achieve accurate calculation results.

Inactive Publication Date: 2015-12-09
ACADEMY OF ARMORED FORCES ENG PLA
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Problems solved by technology

[0005] Disadvantage 1: According to the calculation principles of parameters such as the skewness kurtosis of the profile curve, the arithmetic mean difference of the profile, and the mean square error of the profile, these indicators actually represent the real three-dimensional roughness by defaulting to the two-dimensional state of the coating surface profile appearance
This will inevitably lead to a lot of information not being used, resulting in a decrease

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  • Fractal dimension obtaining method of coating surface morphology
  • Fractal dimension obtaining method of coating surface morphology
  • Fractal dimension obtaining method of coating surface morphology

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[0033] To enable those skilled in the art to better understand the technical solutions of the present invention, the following is combined Attached drawing The plasma processing equipment provided by the present invention will be described in detail.

[0034] Please refer to figure 1 , figure 1 The flow of a specific realization method of the method for obtaining the fractal dimension of the coating surface topography provided by the present invention Figure .

[0035] Such as figure 1 Said, the method for obtaining the fractal dimension of the coating surface topography provided by the present invention includes the following steps.

[0036] Step S1, cleaning the sample.

[0037] An ultrasonic cleaning equipment can be used to clean the sample 3 times, each time is 8-10 minutes, and the cleaning solvent is ethanol with a concentration of 97.5%. After each cleaning, a special hair dryer is used for drying. After the three cleanings, the test was wrapped in dust-free paper, and t...

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Abstract

The invention relates to the technical field of sprayed coating performance and quality evaluation, and especially relates to a fractal dimension obtaining method of coating surface morphology. The method comprises the following steps of: 1) carrying out cleaning processing on a sample; 2) carrying out scanning on the sample and obtaining a coating surface three-dimensional morphology image based on peak and valley actual heights; and 3) adopting a projection covering method to calculate fractal dimensions of the coating surface morphology. According to the invention, calculation is carried out on the three-dimensional data of the coating surface morphology, omission is prevented, a more visual integral evaluation of the actual morphology of a coating is realized, and the method can better reflect the actual characteristics of the coating than a two-dimensional method.

Description

technical field [0001] The invention relates to the technical field of spray coating performance and quality evaluation, in particular to a method for obtaining the fractal dimension of the coating surface topography which can calculate the three-dimensional data of the coating surface topography. Background technique [0002] As an important material surface modification method developed in recent decades, supersonic plasma spraying technology has been successfully applied in many industrial fields. A wide variety of coating systems allow thermal spray coatings to be used to improve the corrosion resistance, wear resistance, and high temperature resistance of the surface of parts according to different needs. In order to obtain the coating with the best quality in engineering applications, a series of preliminary exploration processes are required, and the surface state of the coating is one of the important evaluation indicators. For example, the original shape can reflect...

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Application Information

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IPC IPC(8): G06T17/00
Inventor 王海斗马国政陈书赢邢志国
Owner ACADEMY OF ARMORED FORCES ENG PLA
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