Xinyue Hu , Anh Tieu Kiet , Guanyu Deng , Hongtao Zhu , Pei Wang , Fei Lin , Long Wang
{"title":"通过摩擦磨损仪和纳米划痕评估 YSZ-NiCrAlY 梯度材料的摩擦学性能","authors":"Xinyue Hu , Anh Tieu Kiet , Guanyu Deng , Hongtao Zhu , Pei Wang , Fei Lin , Long Wang","doi":"10.1016/j.triboint.2024.110292","DOIUrl":null,"url":null,"abstract":"<div><div>The tribological properties of ceramic coating often fall short of expectations because of their inherent brittleness and internal microcracking and weak bonding strength. Gradient materials containing different Yttrium oxide stabilized zirconia ceramics (YSZ) and NiCrAlY were prepared at 1050 °C using discharge plasma sintering technique. Two interlayers consisting of different content of YSZ and NiCrAlY was located between the top YSZ and the NiCrAlY substrate, and the layers obtain good bonding. The microstructure and tribological properties of the ZrO<sub>2</sub>-based gradient-structured material were investigated. The element distribution on the surface of the sample after sintering was relatively homogeneous without obvious segregation. Nanoscratch tests indicate that the YSZ based layer obtains high coefficient of friction than the NiCrAlY layer. The tribological results suggested that the coefficient of friction decreases gradually with the increase of load, adhesive wear and oxidative wear were the main wear mechanisms, the formed oxidized layer rich of Zr and Ag contribute to the reduced coefficient of friction under different loads.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"202 ","pages":"Article 110292"},"PeriodicalIF":6.1000,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Tribological performance evaluation of YSZ-NiCrAlY gradient materials by tribometer and nanoscratch\",\"authors\":\"Xinyue Hu , Anh Tieu Kiet , Guanyu Deng , Hongtao Zhu , Pei Wang , Fei Lin , Long Wang\",\"doi\":\"10.1016/j.triboint.2024.110292\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>The tribological properties of ceramic coating often fall short of expectations because of their inherent brittleness and internal microcracking and weak bonding strength. Gradient materials containing different Yttrium oxide stabilized zirconia ceramics (YSZ) and NiCrAlY were prepared at 1050 °C using discharge plasma sintering technique. Two interlayers consisting of different content of YSZ and NiCrAlY was located between the top YSZ and the NiCrAlY substrate, and the layers obtain good bonding. The microstructure and tribological properties of the ZrO<sub>2</sub>-based gradient-structured material were investigated. The element distribution on the surface of the sample after sintering was relatively homogeneous without obvious segregation. Nanoscratch tests indicate that the YSZ based layer obtains high coefficient of friction than the NiCrAlY layer. The tribological results suggested that the coefficient of friction decreases gradually with the increase of load, adhesive wear and oxidative wear were the main wear mechanisms, the formed oxidized layer rich of Zr and Ag contribute to the reduced coefficient of friction under different loads.</div></div>\",\"PeriodicalId\":23238,\"journal\":{\"name\":\"Tribology International\",\"volume\":\"202 \",\"pages\":\"Article 110292\"},\"PeriodicalIF\":6.1000,\"publicationDate\":\"2024-10-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Tribology International\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0301679X24010442\",\"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":"Tribology International","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0301679X24010442","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}
Tribological performance evaluation of YSZ-NiCrAlY gradient materials by tribometer and nanoscratch
The tribological properties of ceramic coating often fall short of expectations because of their inherent brittleness and internal microcracking and weak bonding strength. Gradient materials containing different Yttrium oxide stabilized zirconia ceramics (YSZ) and NiCrAlY were prepared at 1050 °C using discharge plasma sintering technique. Two interlayers consisting of different content of YSZ and NiCrAlY was located between the top YSZ and the NiCrAlY substrate, and the layers obtain good bonding. The microstructure and tribological properties of the ZrO2-based gradient-structured material were investigated. The element distribution on the surface of the sample after sintering was relatively homogeneous without obvious segregation. Nanoscratch tests indicate that the YSZ based layer obtains high coefficient of friction than the NiCrAlY layer. The tribological results suggested that the coefficient of friction decreases gradually with the increase of load, adhesive wear and oxidative wear were the main wear mechanisms, the formed oxidized layer rich of Zr and Ag contribute to the reduced coefficient of friction under different loads.
期刊介绍：
Tribology is the science of rubbing surfaces and contributes to every facet of our everyday life, from live cell friction to engine lubrication and seismology. As such tribology is truly multidisciplinary and this extraordinary breadth of scientific interest is reflected in the scope of Tribology International.
Tribology International seeks to publish original research papers of the highest scientific quality to provide an archival resource for scientists from all backgrounds. Written contributions are invited reporting experimental and modelling studies both in established areas of tribology and emerging fields. Scientific topics include the physics or chemistry of tribo-surfaces, bio-tribology, surface engineering and materials, contact mechanics, nano-tribology, lubricants and hydrodynamic lubrication.
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