Smielak Beata, Klimek Leszek
Department of Dental Prosthetics, Medical University of Lodz, ul. Pomorska 251, 92-213 Lodz, Poland.
Department of Materials Research, Institute of Materials Science and Engineering, University of Technology, ul. Stefanowskiego 1/15, 90-924 Lodz, Poland.
Materials (Basel). 2022 Apr 11;15(8):2794. doi: 10.3390/ma15082794.
(1) Background: This paper aims to determine the influence of hardness on the number of abrasive material grains (SiC) embedded on the surface metal alloys and ZrO during abrasion. (2) Methods: Cylindrical samples were created: 315 made of Cr/Co, Ni/Cr or Ti, and 315 made of sintered ZrO- 3TPZ-Y. These were divided into four groups (each = 35 samples), and were treated with SiC grain sizes 50, 110, and 250 µm at pressures 0.2, 0.4, or 0.6 MPa. The samples were then observed in SEM to study SE and BSE. The surface coverage of abrasive material particles was determined by quantitative metallography. Five samples from each group were subjected to hardness measurements. The results were compared with three-factor variance analysis with using the post hoc Tukey test. (3) Results: The highest amount (40.06) of embedded abrasive was obtained for Ti alloy with a gradation of 250µm at a pressure of 0.6 MPa. The smallest amount of embedded grain (2.66) was obtained for ZrO for the same treatment parameters. (4) Conclusions: The amount of embedded abrasive particles depends on the type of treated material, gradation particles, and the amount of applied pressure. Harder treated materials are more resistant to grains of abrasive becoming embedded on surface.
(1) 背景：本文旨在确定硬度对磨损过程中嵌入表面金属合金和氧化锆的磨料颗粒（碳化硅）数量的影响。(2) 方法：制备圆柱形样品：315个由Cr/Co、Ni/Cr或Ti制成，315个由烧结氧化锆-3TPZ-Y制成。将这些样品分为四组（每组 = 35个样品），并在0.2、0.4或0.6 MPa的压力下用粒度为50、110和250 µm的碳化硅进行处理。然后在扫描电子显微镜下观察样品以研究二次电子和背散射电子。通过定量金相法测定磨料颗粒的表面覆盖率。每组取五个样品进行硬度测量。结果采用三因素方差分析并使用事后Tukey检验进行比较。(3) 结果：在0.6 MPa压力下，粒度为250 µm的钛合金获得的嵌入磨料量最高（40.06）。在相同处理参数下，氧化锆获得的嵌入颗粒量最少（2.66）。(4) 结论：嵌入磨料颗粒的数量取决于被处理材料的类型、颗粒粒度和施加压力的大小。硬度较高的被处理材料更能抵抗磨料颗粒嵌入表面。
