A. A. Burkov, M. A. Kulik, A. Yu. Bytsura, M. A. Ermakov
{"title":"使用氧化铝粉末在 35 号钢上沉积抗磨损 Cr-Fe-Al2O3 涂层","authors":"A. A. Burkov, M. A. Kulik, A. Yu. Bytsura, M. A. Ermakov","doi":"10.3103/S106836662306003X","DOIUrl":null,"url":null,"abstract":"<p>Using electrospark alloying, Cr–Fe–Al<sub>2</sub>O<sub>3</sub> coatings are obtained on steel 35 in a mixture of steel granules with chromium and aluminum oxide powders. The structure of the coatings is studied using X-ray diffraction analysis, scanning electron microscopy, and X-ray spectral microanalysis. The heat resistance of the coatings was studied for 100 h at a temperature of 700°C in air. The study of the mechanical properties of the coatings includes testing for microhardness under a load of 0.5 N and wear in the dry friction mode under a load of 25 N. According to X-ray diffraction analysis, the coating composition is dominated by ferrochrome and a small amount of aluminum oxide. According to EDS analysis, the element distribution in the coating is uniform throughout the coating thickness with a chromium concentration of about 60 at %, iron, 30 at %, and aluminum, 3.4 at %. The results indicate a uniform distribution of fine particles of aluminum oxide in the volume of the deposited layer. It has been shown that the metal powder participates four times more actively in the formation of the coating compared to the granules. The heat resistance test shows that with addition of Cr–Fe–Al<sub>2</sub>O<sub>3</sub> powder in the anode mixture, the average rate of high-temperature weight gain of the samples increases. In general, the use of Cr–Fe–Al<sub>2</sub>O<sub>3</sub> coatings increases the heat resistance of steel 35 from 2.4 to 4 times. The average values of the friction coefficient of coatings range from 0.76 to 0.83, with a minimum for the sample deposited using a minimal addition of Al<sub>2</sub>O<sub>3</sub>. The wear of the samples decreases monotonically from 3.3 × 10<sup>–6</sup> to 1.8 × 10<sup>–6</sup> mm<sup>3</sup>/(N m) with a decrease in the concentration of aluminum oxide in the anode mixture. In general, the application of Cr–Fe–Al<sub>2</sub>O<sub>3</sub> coatings using the proposed method makes it possible to increase the wear resistance of the steel 35 surface from 11 to 20 times.</p>","PeriodicalId":633,"journal":{"name":"Journal of Friction and Wear","volume":null,"pages":null},"PeriodicalIF":0.5000,"publicationDate":"2024-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Wear-Resistant Cr–Fe–Al2O3 Coating Deposition on Steel 35 Using Aluminum Oxide Powder\",\"authors\":\"A. A. Burkov, M. A. Kulik, A. Yu. Bytsura, M. A. Ermakov\",\"doi\":\"10.3103/S106836662306003X\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Using electrospark alloying, Cr–Fe–Al<sub>2</sub>O<sub>3</sub> coatings are obtained on steel 35 in a mixture of steel granules with chromium and aluminum oxide powders. The structure of the coatings is studied using X-ray diffraction analysis, scanning electron microscopy, and X-ray spectral microanalysis. The heat resistance of the coatings was studied for 100 h at a temperature of 700°C in air. The study of the mechanical properties of the coatings includes testing for microhardness under a load of 0.5 N and wear in the dry friction mode under a load of 25 N. According to X-ray diffraction analysis, the coating composition is dominated by ferrochrome and a small amount of aluminum oxide. According to EDS analysis, the element distribution in the coating is uniform throughout the coating thickness with a chromium concentration of about 60 at %, iron, 30 at %, and aluminum, 3.4 at %. The results indicate a uniform distribution of fine particles of aluminum oxide in the volume of the deposited layer. It has been shown that the metal powder participates four times more actively in the formation of the coating compared to the granules. The heat resistance test shows that with addition of Cr–Fe–Al<sub>2</sub>O<sub>3</sub> powder in the anode mixture, the average rate of high-temperature weight gain of the samples increases. In general, the use of Cr–Fe–Al<sub>2</sub>O<sub>3</sub> coatings increases the heat resistance of steel 35 from 2.4 to 4 times. The average values of the friction coefficient of coatings range from 0.76 to 0.83, with a minimum for the sample deposited using a minimal addition of Al<sub>2</sub>O<sub>3</sub>. The wear of the samples decreases monotonically from 3.3 × 10<sup>–6</sup> to 1.8 × 10<sup>–6</sup> mm<sup>3</sup>/(N m) with a decrease in the concentration of aluminum oxide in the anode mixture. In general, the application of Cr–Fe–Al<sub>2</sub>O<sub>3</sub> coatings using the proposed method makes it possible to increase the wear resistance of the steel 35 surface from 11 to 20 times.</p>\",\"PeriodicalId\":633,\"journal\":{\"name\":\"Journal of Friction and Wear\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.5000,\"publicationDate\":\"2024-03-09\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Friction and Wear\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://link.springer.com/article/10.3103/S106836662306003X\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"ENGINEERING, MECHANICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Friction and Wear","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.3103/S106836662306003X","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENGINEERING, MECHANICAL","Score":null,"Total":0}
Wear-Resistant Cr–Fe–Al2O3 Coating Deposition on Steel 35 Using Aluminum Oxide Powder
Using electrospark alloying, Cr–Fe–Al2O3 coatings are obtained on steel 35 in a mixture of steel granules with chromium and aluminum oxide powders. The structure of the coatings is studied using X-ray diffraction analysis, scanning electron microscopy, and X-ray spectral microanalysis. The heat resistance of the coatings was studied for 100 h at a temperature of 700°C in air. The study of the mechanical properties of the coatings includes testing for microhardness under a load of 0.5 N and wear in the dry friction mode under a load of 25 N. According to X-ray diffraction analysis, the coating composition is dominated by ferrochrome and a small amount of aluminum oxide. According to EDS analysis, the element distribution in the coating is uniform throughout the coating thickness with a chromium concentration of about 60 at %, iron, 30 at %, and aluminum, 3.4 at %. The results indicate a uniform distribution of fine particles of aluminum oxide in the volume of the deposited layer. It has been shown that the metal powder participates four times more actively in the formation of the coating compared to the granules. The heat resistance test shows that with addition of Cr–Fe–Al2O3 powder in the anode mixture, the average rate of high-temperature weight gain of the samples increases. In general, the use of Cr–Fe–Al2O3 coatings increases the heat resistance of steel 35 from 2.4 to 4 times. The average values of the friction coefficient of coatings range from 0.76 to 0.83, with a minimum for the sample deposited using a minimal addition of Al2O3. The wear of the samples decreases monotonically from 3.3 × 10–6 to 1.8 × 10–6 mm3/(N m) with a decrease in the concentration of aluminum oxide in the anode mixture. In general, the application of Cr–Fe–Al2O3 coatings using the proposed method makes it possible to increase the wear resistance of the steel 35 surface from 11 to 20 times.
期刊介绍:
Journal of Friction and Wear is intended to bring together researchers and practitioners working in tribology. It provides novel information on science, practice, and technology of lubrication, wear prevention, and friction control. Papers cover tribological problems of physics, chemistry, materials science, and mechanical engineering, discussing issues from a fundamental or technological point of view.