O. O. Matviichuk, I. V. Andreiev, N. V. Litoshenko, M. O. Tsysar, V. A. Vynar, I. O. Hnatenko, S. A. Davydenko, I. V. Savchuk
{"title":"Peculiarities of Preparation and Properties of Cemented Carbide WC + 20 Mass% Ni with Ultra-Coarse-Grained Microstructure","authors":"O. O. Matviichuk, I. V. Andreiev, N. V. Litoshenko, M. O. Tsysar, V. A. Vynar, I. O. Hnatenko, S. A. Davydenko, I. V. Savchuk","doi":"10.1007/s11003-024-00786-7","DOIUrl":null,"url":null,"abstract":"<p>The influence of the conditions of original components mixing and sintering temperatures on the peculiarities of microstructure formation of the cemented carbide WC + 20 mass% Ni prepared of ultra-coarse-grained (80/40 μm) tungsten carbide particles is investigated. The metallographic analysis shows that for the formation of such hard alloy microstructure, it is sufficient to use liquid phase sintering and preliminary economical wet mixing of WC with Ni powder. The strength under bending and compression is 1530 and 1720 MPa, respectively, the density is 13.51 g/cm<sup>3</sup>, and the hardness is 76 HRA. For the first time, the compressive stress-compression strain curve for this alloy with an average carbide grain size of 20 μm is experimentally obtained. The alloy plasticity is 6 times higher than that of the alloys prepared under other technological modes.</p>","PeriodicalId":18230,"journal":{"name":"Materials Science","volume":null,"pages":null},"PeriodicalIF":0.7000,"publicationDate":"2024-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials Science","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1007/s11003-024-00786-7","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
The influence of the conditions of original components mixing and sintering temperatures on the peculiarities of microstructure formation of the cemented carbide WC + 20 mass% Ni prepared of ultra-coarse-grained (80/40 μm) tungsten carbide particles is investigated. The metallographic analysis shows that for the formation of such hard alloy microstructure, it is sufficient to use liquid phase sintering and preliminary economical wet mixing of WC with Ni powder. The strength under bending and compression is 1530 and 1720 MPa, respectively, the density is 13.51 g/cm3, and the hardness is 76 HRA. For the first time, the compressive stress-compression strain curve for this alloy with an average carbide grain size of 20 μm is experimentally obtained. The alloy plasticity is 6 times higher than that of the alloys prepared under other technological modes.
期刊介绍：
Materials Science reports on current research into such problems as cracking, fatigue and fracture, especially in active environments as well as corrosion and anticorrosion protection of structural metallic and polymer materials, and the development of new materials.
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