使用 Ti-B-Fe 系 SHS 粉末获得的 TiB2-Fe 硬质合金

IF 4.2 2区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

International Journal of Refractory Metals & Hard Materials Pub Date : 2024-10-10 DOI:10.1016/j.ijrmhm.2024.106915

O.K. Lepakova, O.A. Shkoda

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引用次数: 0

摘要

开发了一种生产具有高性能特征的 TiB2-Fe 复合粉末的方法。找到了自蔓延高温合成、合成产物研磨和后续烧结的最佳模式。在烧结温度为 1400 ℃、烧结时间为 60 分钟的条件下，TiB2：Fe = 52：48（重量比）的复合粉末烧结出的样品具有最佳性能。它们的密度为 98.2%，HRA 指数为 90，σ 弯曲 = 1200 兆帕。对合成的温度特性和产品的微观结构进行了研究。对获得的材料进行了机械测试，证明了其在木工行业应用的可能性。

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TiB2-Fe hard alloys obtained using SHS powders of the Ti-B-Fe system

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.

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来源期刊

$International Journal of Refractory Metals & Hard Materials$

International Journal of Refractory Metals & Hard Materials 工程技术-材料科学：综合

CiteScore

7.00

自引率

13.90%

发文量

236

审稿时长

35 days

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.