In-situ fabrication of TiC-Fe3Al cermet

摘要: Abstract Titanium carbide has high hardness, resistance to oxidation and abrasion while iron aluminide proper ductility as well good strength excellent up temperatures. Therefore, it can be expected TiC-iron cermet have mechanical properties a cutting tool wear-resistance material. In this study, milling hot press sintering processes were used manufacture in-situ TiC-Fe 3 Al cermet, whose microstructure examined according the changes in volume fraction of TiC time. After 48 h each mechanically alloyed powder crystallized Fe biphasic The milled was hot-pressed at 1250 ℃ 50 MPa for 30 min obtain sintered bodies also consisting only phases. hard phase, TiC, had size 100–300 nm with overall uniform distribution decreasing increased. hardness body showed linearly increasing tendency increase content, 90 vol% being 1813Hv. On other hand, bending 1800 MPa 1780 MPa when 50% 70%, respectively, an abrupt decrease 580 MPa 90% fraction. phase is effective toughening significantly influences cermet.