Effect of Boron Addition on Structure and Mechanical Properties of FeAl-WC Composites
Effect of Boron Addition on Structure and Mechanical Properties of FeAl-WC Composites
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添加硼对 FeAl-WC 复合材料结构和力学性能的影响
DOI：
10.2497/jjspm.49.1089
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发表时间：
2002
期刊：
影响因子：
--
通讯作者：
K. Ozaki
中科院分区：
文献类型：
--
作者：
A. Matsumoto;K. Kobayashi;T. Nishio;K. Ozaki
研究了添加硼对FeAl-WC合金组织和性能的影响。以铁粉、铝粉和硼粉为原料，混合制备了Fe-40at%Al+0-5at%B的合金粉末。加入硼后，粉末细小，力学性能得到改善。将3at%B的Fe-40at%Al球磨粉末与WC粉末混合，在第1373~1473K采用脉冲电流烧结工艺进行烧结，添加3at%B的FeAl-50vol%WC具有较高的维氏硬度1230Hv和1.77 Gpa的抗弯强度，而不添加B的FeAl-50vol%WC的维氏硬度和抗弯强度分别达到1080Hv和1.10 GPa.这是由于WC颗粒在FeAl基体中弥散程度提高所致。
Effect of boron addition on structure and mechanical properties of FeAl-WC have been investigated. Elemental powders of iron, aluminum and boron powders have been used as starting materials for MA and mixed to give the desired composition of Fe-40at%Al+0-5 at%B. Boron addition leads to fine milled powders and improves mechanical properties of Fe-40at%Al compacts. Milled Fe-40 at%Al powders with 3at% B have been blended with WC powders and consolidated using pulse current sintering process at 1373-1473 K. 3at%B-added FeAI-50vol%WC has had high vickers hardness 1230 Hv and transverse rupture strength 1.77 GPa, while no B-added FeAl-50vol% WC has had 1080 Hv and 1.10 GPa respectively. This is caused by improvement of dispersion of WC paricles in FeAl matrix.