Gongjun Cui , Haotian Cui , Wuchen Zhang , Xiaoqing Yan , Junxia Li , Ziming Kou
{"title":"高温下激光熔覆制备的 ZrO2 增强人造卫星 6 基体涂层的磨损性能","authors":"Gongjun Cui , Haotian Cui , Wuchen Zhang , Xiaoqing Yan , Junxia Li , Ziming Kou","doi":"10.1016/j.wear.2024.205539","DOIUrl":null,"url":null,"abstract":"<div><p>In order to modify the wear resistance of Stellite 6 superalloy as wear resistant coating at room temperature-1000 °C, the different contents (1.0, 2.5 and 4.0 wt%) of ZrO<sub>2</sub> reinforced Stellite 6 matrix coatings were fabricated over the Inconel 718 nickel alloy substrate by laser cladding technology. The microstructure, hardness and high-temperature wear behavior of Stellite 6 matrix coatings with ZrO<sub>2</sub> was systematically studied. The sliding wear test were done using a ball-on-disk tribometer against Si<sub>3</sub>N<sub>4</sub> at room temperature-1000 °C. The results showed that the ZrO<sub>2</sub> showed obvious fine-grain strengthening and dispersion strengthening effect. The hardness of coatings reinforced by ZrO<sub>2</sub> were 470–540 Hv. A critical valve of ZrO<sub>2</sub> content was existed for the wear performance of Stellite 6 matrix coatings. The coating with 2.5 wt% ZrO<sub>2</sub> had the desirable wear resistance, and the wear rate was in the order of 10<sup>−5</sup> mm<sup>3</sup>/N.m. This was attributed to the high microhardness and the formation of solid lubricants, as well as the friction film on the sliding surfaces.</p></div>","PeriodicalId":23970,"journal":{"name":"Wear","volume":"556 ","pages":"Article 205539"},"PeriodicalIF":5.3000,"publicationDate":"2024-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Wear performance of ZrO2 reinforced stellite 6 matrix coatings prepared by laser cladding at elevated temperature\",\"authors\":\"Gongjun Cui , Haotian Cui , Wuchen Zhang , Xiaoqing Yan , Junxia Li , Ziming Kou\",\"doi\":\"10.1016/j.wear.2024.205539\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>In order to modify the wear resistance of Stellite 6 superalloy as wear resistant coating at room temperature-1000 °C, the different contents (1.0, 2.5 and 4.0 wt%) of ZrO<sub>2</sub> reinforced Stellite 6 matrix coatings were fabricated over the Inconel 718 nickel alloy substrate by laser cladding technology. The microstructure, hardness and high-temperature wear behavior of Stellite 6 matrix coatings with ZrO<sub>2</sub> was systematically studied. The sliding wear test were done using a ball-on-disk tribometer against Si<sub>3</sub>N<sub>4</sub> at room temperature-1000 °C. The results showed that the ZrO<sub>2</sub> showed obvious fine-grain strengthening and dispersion strengthening effect. The hardness of coatings reinforced by ZrO<sub>2</sub> were 470–540 Hv. A critical valve of ZrO<sub>2</sub> content was existed for the wear performance of Stellite 6 matrix coatings. The coating with 2.5 wt% ZrO<sub>2</sub> had the desirable wear resistance, and the wear rate was in the order of 10<sup>−5</sup> mm<sup>3</sup>/N.m. This was attributed to the high microhardness and the formation of solid lubricants, as well as the friction film on the sliding surfaces.</p></div>\",\"PeriodicalId\":23970,\"journal\":{\"name\":\"Wear\",\"volume\":\"556 \",\"pages\":\"Article 205539\"},\"PeriodicalIF\":5.3000,\"publicationDate\":\"2024-08-10\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Wear\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0043164824003041\",\"RegionNum\":1,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENGINEERING, MECHANICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Wear","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0043164824003041","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, MECHANICAL","Score":null,"Total":0}
Wear performance of ZrO2 reinforced stellite 6 matrix coatings prepared by laser cladding at elevated temperature
In order to modify the wear resistance of Stellite 6 superalloy as wear resistant coating at room temperature-1000 °C, the different contents (1.0, 2.5 and 4.0 wt%) of ZrO2 reinforced Stellite 6 matrix coatings were fabricated over the Inconel 718 nickel alloy substrate by laser cladding technology. The microstructure, hardness and high-temperature wear behavior of Stellite 6 matrix coatings with ZrO2 was systematically studied. The sliding wear test were done using a ball-on-disk tribometer against Si3N4 at room temperature-1000 °C. The results showed that the ZrO2 showed obvious fine-grain strengthening and dispersion strengthening effect. The hardness of coatings reinforced by ZrO2 were 470–540 Hv. A critical valve of ZrO2 content was existed for the wear performance of Stellite 6 matrix coatings. The coating with 2.5 wt% ZrO2 had the desirable wear resistance, and the wear rate was in the order of 10−5 mm3/N.m. This was attributed to the high microhardness and the formation of solid lubricants, as well as the friction film on the sliding surfaces.
期刊介绍：
Wear journal is dedicated to the advancement of basic and applied knowledge concerning the nature of wear of materials. Broadly, topics of interest range from development of fundamental understanding of the mechanisms of wear to innovative solutions to practical engineering problems. Authors of experimental studies are expected to comment on the repeatability of the data, and whenever possible, conduct multiple measurements under similar testing conditions. Further, Wear embraces the highest standards of professional ethics, and the detection of matching content, either in written or graphical form, from other publications by the current authors or by others, may result in rejection.
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