Wear of iron–aluminide intermetallic-based alloys and composites by hard particles
作者： D.E Alman , J.A Hawk , J.H Tylczak , C.P Doğan , R.D Wilson
DOI: 10.1016/S0043-1648(01)00745-1
关键词: Composite material 、 Intermetallic 、 Carbide 、 Alloy 、 Cermet 、 FEAL 、 Microstructure 、 Aluminide 、 Metallurgy 、 Materials science 、 Abrasion (mechanical)
摘要: Abstract In this study, the resistance of alloys and composites based on intermetallic compounds Fe 3 Al FeAl to wear by hard particles was assessed compared behavior selected metals, alloys, other ceramics. Pin abrasion tests were performed these materials at room temperature. Among things, it found that as atomic percent in binary Fe–Al increased, became more resistant. summary, ranking terms from most resistant least proceeds follows: FeAl>Fe Al>α-Fe alloy with 16 at.% Al>pure Fe>pure Al. These results are discussed hardnesses respective alloys. The addition between 40 70 vol.% a second phase (e.g. TiC or TiB 2 ) decreased rate an order magnitude parent alloy. addition, solid particle erosion alloy, FeAl+80 vol.% TiC, WC, cermets 25, 180, 500 700°C, several conventional cemented carbides (WC–Co). composite (most resistant) FeAl–WC>FeAl–TiB >FeAl–TiC>FeAl (least resistant). This related both cermet microstructure material removal mechanisms.
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