{"title":"TiB2-Fe hard alloys obtained using SHS powders of the Ti-B-Fe system","authors":"O.K. Lepakova, O.A. Shkoda","doi":"10.1016/j.ijrmhm.2024.106915","DOIUrl":null,"url":null,"abstract":"<div><div>A method for producing TiB<sub>2</sub>-Fe composite powder with high performance characteristics has been developed. Optimal modes of self-propagating high-temperature synthesis, grinding of synthesis products and subsequent sintering have been found. The best properties are exhibited by samples sintered from composite powder of the composition TiB<sub>2</sub>: Fe = 52:48 (wt%) at a sintering temperature of 1400 °C for 60 min. They have a density of 98.2 %, an HRA index of 90 and σ <sub>bend</sub> = 1200 MPa. The temperature characteristics of synthesis and microstructure of the products have been studied. Mechanical tests of the obtained materials have been carried out and the possibility of its application in the woodworking industry has been shown.</div></div>","PeriodicalId":14216,"journal":{"name":"International Journal of Refractory Metals & Hard Materials","volume":"125 ","pages":"Article 106915"},"PeriodicalIF":4.6000,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Refractory Metals & Hard Materials","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0263436824003639","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2024/10/10 0:00:00","PubModel":"Epub","JCR":"Q2","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
A method for producing TiB2-Fe composite powder with high performance characteristics has been developed. Optimal modes of self-propagating high-temperature synthesis, grinding of synthesis products and subsequent sintering have been found. The best properties are exhibited by samples sintered from composite powder of the composition TiB2: Fe = 52:48 (wt%) at a sintering temperature of 1400 °C for 60 min. They have a density of 98.2 %, an HRA index of 90 and σ bend = 1200 MPa. The temperature characteristics of synthesis and microstructure of the products have been studied. Mechanical tests of the obtained materials have been carried out and the possibility of its application in the woodworking industry has been shown.
期刊介绍：
The International Journal of Refractory Metals and Hard Materials (IJRMHM) publishes original research articles concerned with all aspects of refractory metals and hard materials. Refractory metals are defined as metals with melting points higher than 1800 °C. These are tungsten, molybdenum, chromium, tantalum, niobium, hafnium, and rhenium, as well as many compounds and alloys based thereupon. Hard materials that are included in the scope of this journal are defined as materials with hardness values higher than 1000 kg/mm2, primarily intended for applications as manufacturing tools or wear resistant components in mechanical systems. Thus they encompass carbides, nitrides and borides of metals, and related compounds. A special focus of this journal is put on the family of hardmetals, which is also known as cemented tungsten carbide, and cermets which are based on titanium carbide and carbonitrides with or without a metal binder. Ceramics and superhard materials including diamond and cubic boron nitride may also be accepted provided the subject material is presented as hard materials as defined above.
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