Effect of different composition ratio on mechanical properties of W-Fe-B alloy

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

International Journal of Refractory Metals & Hard Materials Pub Date : 2025-04-10 DOI:10.1016/j.ijrmhm.2025.107181

Quan Gao , Zhenlin Lu , Yuli Li , Yuhang Ding , Qiuyu Chen , Hao Li , Hengxin Xu , Xiangyong Cui , Taotao Sun

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Abstract

W-Fe-B ternary system with different composition ratio were fabricated the pressureless sintering method. Effects of different original powder content on the mechanical properties of the alloy at different W/B ratios were systematically investigated. The results showed that the density varies with the proportion of elements and raw materials in the alloy. W₂FeB₂ hard particles size, hardness, compressive strength and bending strength of W-Fe-B alloy first increased and then decreased with W/B element ratio changing from 0.5 to 0.6 and W raw powder content increasing from 45 wt% to 50 wt%. Synthesized W-Fe-B alloys have superior comprehensive properties with hardness of 531.4 ± 0.3 HV, compressive strength of 1050 ± 2 MPa and bending strength of 955 ± 5 MPa under 0.57 W/B ratio and 47.5 wt%-W. According to the results of tests, high performance W-Fe-B alloy would make greater contributions in future cutter and mould industries.

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不同成分配比对W-Fe-B合金力学性能的影响

采用无压烧结法制备了不同组成比的W-Fe-B三元体系。系统研究了不同原粉含量对不同W/B比合金力学性能的影响。结果表明，合金的密度随合金中元素和原料的比例而变化。W- fe -B合金的W2FeB2硬颗粒尺寸、硬度、抗压强度和抗弯强度随W/B元素比从0.5增大到0.6，W原粉含量从45 wt%增大到50 wt%而先增大后减小。合成的W- fe -B合金在0.57 W/B比和47.5% wt%-W下，硬度为531.4±0.3 HV，抗压强度为1050±2 MPa，抗弯强度为955±5 MPa，综合性能优越。试验结果表明，高性能的W-Fe-B合金将在未来的刀具模具工业中做出更大的贡献。

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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.