Min Wei , Jing Li , Kun Xie , Yang-yi Xiao , Qiang Wan , Zhen-ting Yang , Yong-jun Huang , Mohamed Refai
{"title":"WC 含量对 WC-Ni60A 耐磨涂层硬度和断裂韧性的影响","authors":"Min Wei , Jing Li , Kun Xie , Yang-yi Xiao , Qiang Wan , Zhen-ting Yang , Yong-jun Huang , Mohamed Refai","doi":"10.1016/j.surfcoat.2024.131133","DOIUrl":null,"url":null,"abstract":"<div><p>WC-Ni60A is widely used in surface wear-resistant parts, its toughness has a significant effect on its performance, but the related research is less. The plasma cladding method was used to successfully cover 45# steel substrates with three different types of WC-Ni60A coatings that are highly resistant to wear. The coatings had different amounts of WC. Field emission scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), and X-ray diffractometry (XRD) were used to analyze the wear-resistant coatings' microstructure, elemental distribution, and phase composition. A micro-Vickers hardness tester and a nanoindentation tester were used to measure the coatings' microhardness and nanohardness. They were also tested for their ability to resist plastic deformation and recover from elastic deformation. Finally, the fracture toughness of the coating was studied utilizing a three-point bending test combined with numerical simulation to demonstrate the crack extension process. The metallurgical bonding of the three prepared coatings with the substrate is excellent. The hardness of the coatings increased as the WC content grew, reaching a maximum microhardness of 1038.75 HV. However, the fracture toughness reduced as the WC content increased, and the fracture modes were also transformed. The fracture toughness values for the 15 %, 25 %, and 35 % WC-Ni60A coatings were measured as 35.57, 34.54, and 31.395 <span><math><mi>MPa</mi><msqrt><mi>m</mi></msqrt></math></span>, respectively. The crack toughness values that the finite element model predicted for the 15 % and 25 % WC-Ni60A coatings were 34.86 and 32.56 <span><math><mi>MPa</mi><msqrt><mi>m</mi></msqrt></math></span>, which were 2 % and 5.8 % lower than the experimental data.</p></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"491 ","pages":"Article 131133"},"PeriodicalIF":5.3000,"publicationDate":"2024-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Effect of WC content on hardness and fracture toughness of WC-Ni60A wear-resistant coatings\",\"authors\":\"Min Wei , Jing Li , Kun Xie , Yang-yi Xiao , Qiang Wan , Zhen-ting Yang , Yong-jun Huang , Mohamed Refai\",\"doi\":\"10.1016/j.surfcoat.2024.131133\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>WC-Ni60A is widely used in surface wear-resistant parts, its toughness has a significant effect on its performance, but the related research is less. The plasma cladding method was used to successfully cover 45# steel substrates with three different types of WC-Ni60A coatings that are highly resistant to wear. The coatings had different amounts of WC. Field emission scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), and X-ray diffractometry (XRD) were used to analyze the wear-resistant coatings' microstructure, elemental distribution, and phase composition. A micro-Vickers hardness tester and a nanoindentation tester were used to measure the coatings' microhardness and nanohardness. They were also tested for their ability to resist plastic deformation and recover from elastic deformation. Finally, the fracture toughness of the coating was studied utilizing a three-point bending test combined with numerical simulation to demonstrate the crack extension process. The metallurgical bonding of the three prepared coatings with the substrate is excellent. The hardness of the coatings increased as the WC content grew, reaching a maximum microhardness of 1038.75 HV. However, the fracture toughness reduced as the WC content increased, and the fracture modes were also transformed. The fracture toughness values for the 15 %, 25 %, and 35 % WC-Ni60A coatings were measured as 35.57, 34.54, and 31.395 <span><math><mi>MPa</mi><msqrt><mi>m</mi></msqrt></math></span>, respectively. The crack toughness values that the finite element model predicted for the 15 % and 25 % WC-Ni60A coatings were 34.86 and 32.56 <span><math><mi>MPa</mi><msqrt><mi>m</mi></msqrt></math></span>, which were 2 % and 5.8 % lower than the experimental data.</p></div>\",\"PeriodicalId\":22009,\"journal\":{\"name\":\"Surface & Coatings Technology\",\"volume\":\"491 \",\"pages\":\"Article 131133\"},\"PeriodicalIF\":5.3000,\"publicationDate\":\"2024-07-20\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Surface & Coatings Technology\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0257897224007643\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MATERIALS SCIENCE, COATINGS & FILMS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Surface & Coatings Technology","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0257897224007643","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, COATINGS & FILMS","Score":null,"Total":0}
Effect of WC content on hardness and fracture toughness of WC-Ni60A wear-resistant coatings
WC-Ni60A is widely used in surface wear-resistant parts, its toughness has a significant effect on its performance, but the related research is less. The plasma cladding method was used to successfully cover 45# steel substrates with three different types of WC-Ni60A coatings that are highly resistant to wear. The coatings had different amounts of WC. Field emission scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), and X-ray diffractometry (XRD) were used to analyze the wear-resistant coatings' microstructure, elemental distribution, and phase composition. A micro-Vickers hardness tester and a nanoindentation tester were used to measure the coatings' microhardness and nanohardness. They were also tested for their ability to resist plastic deformation and recover from elastic deformation. Finally, the fracture toughness of the coating was studied utilizing a three-point bending test combined with numerical simulation to demonstrate the crack extension process. The metallurgical bonding of the three prepared coatings with the substrate is excellent. The hardness of the coatings increased as the WC content grew, reaching a maximum microhardness of 1038.75 HV. However, the fracture toughness reduced as the WC content increased, and the fracture modes were also transformed. The fracture toughness values for the 15 %, 25 %, and 35 % WC-Ni60A coatings were measured as 35.57, 34.54, and 31.395 , respectively. The crack toughness values that the finite element model predicted for the 15 % and 25 % WC-Ni60A coatings were 34.86 and 32.56 , which were 2 % and 5.8 % lower than the experimental data.
期刊介绍:
Surface and Coatings Technology is an international archival journal publishing scientific papers on significant developments in surface and interface engineering to modify and improve the surface properties of materials for protection in demanding contact conditions or aggressive environments, or for enhanced functional performance. Contributions range from original scientific articles concerned with fundamental and applied aspects of research or direct applications of metallic, inorganic, organic and composite coatings, to invited reviews of current technology in specific areas. Papers submitted to this journal are expected to be in line with the following aspects in processes, and properties/performance:
A. Processes: Physical and chemical vapour deposition techniques, thermal and plasma spraying, surface modification by directed energy techniques such as ion, electron and laser beams, thermo-chemical treatment, wet chemical and electrochemical processes such as plating, sol-gel coating, anodization, plasma electrolytic oxidation, etc., but excluding painting.
B. Properties/performance: friction performance, wear resistance (e.g., abrasion, erosion, fretting, etc), corrosion and oxidation resistance, thermal protection, diffusion resistance, hydrophilicity/hydrophobicity, and properties relevant to smart materials behaviour and enhanced multifunctional performance for environmental, energy and medical applications, but excluding device aspects.