Rapid evaluation method and rapid evaluation device for wear resistance of coating sample array

Abstract

The invention discloses a rapid evaluation method and a rapid evaluation device for wear resistance of a coating sample array. The rapid evaluation method comprises the following steps: firstly, preparing an array type coating on a substrate; preliminarily grinding a sample coating, and then conducting an accelerated wear test on the sample coating subjected to preliminary grinding according to identical wear parameters; after the wear is finished, acquiring coating surface morphology information of a worn coating sample array through an optical three-dimensional profilometer, and converting the coating surface morphology information into digitalized intensity information through a CCD detector; transmitting the digitalized intensity information to a computer and calculating wear volume through special 3D image analysis software; evaluating wear resistance of coatings at various lattice point positions of the sample according to the wear volume losses of all sample lattice points underthe same conditions within the same time and screening out a coating material with optimal performance. By adopting the rapid evaluation method and the rapid evaluation device disclosed by the invention, the influence of human factors on the processes of preparation, change, installation and the like of the sample on a traditional sample wear testing machine is overcome, and the detection efficiency of wear performance is improved.

Description

technical field [0001] The invention relates to the detection of coating wear resistance performance in the field of materials, especially a rapid detection device and method for the wear resistance of coating sample arrays, which are used for high-efficiency, same-parameter detection and evaluation of the wear resistance of coating sample arrays performance. Background technique: [0002] In the development of new wear-resistant materials and coatings, there are many factors that affect wear resistance. The type, content, size, distribution, and shape of ceramic phases in the coating have an important impact on the wear resistance of the coating. Coating performance optimization can only be achieved by rationally designing coating components, structure, ceramic phase content, scale, distribution characteristics in the coating and other factors, and verifying and comparing them through a large number of friction and wear experiments. It is an effective and common method to ...

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Problems solved by technology

These experimental methods have a large workload and can only characterize one sample at a time. The optimization efficiency for coating wear resistance is low, and due to the influence of human factors during wear experiments and measurements, it is difficult to ensure complete consistency of measurement conditions.

[0003] Chinese Patent Application No. 201310185920.0 discloses a rotating disk multi-sample synchronous friction and wear test device, which can detect multiple samples at the same time. In principle, the pin-disk structure is still used, and the samples need to be processed into a standard fan-shaped structure, and then Splicing multiple fan-shaped samples into a whole circle and placing them on the turntable for detection, although the detection efficiency is relatively high, there are still the following defects: First, due to the need to splice the samples into a turntable type, this is limited to a certain extent. If the number of samples is limited, it is impossible to realize the rapid detection of large batches of coatings, which requires batches of inspections, and the efficiency is low; second, the prepared coatings need to be cut into fan shapes in advance, which undoubtedly puts forward higher requirements for operators. The process is complicated, and the samples are cut one by one. During the cutting process, the samples are damaged. More importantly, the degree of damage is different, which leads to large errors in the test results and is not desirable.

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