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An ultrafine grained Fe-40Al intermetallic compound is fabricated by a selfpropagating high temperature synthesis(SHS) casting.The XRD result shows that the Fe-40Al intermetallic compound consists of the B2 FeAl phase.The Fe-40Al intermetallic compound presents ultrafine grain size in the range of 100-600 nm,leading from the high nucleation rate and the low growth rate.The Fe-40Al intermetallic compound exhibits high hardness(3.4 GPa) and high bending strength(830 MPa) and high compressive strength(2700 MPa),which originate from the ultrafine-structure in the material.The effect of the load on dry-sliding wear rate of the material against AISI52100 steel was investigated.The wear rate increases with the increase of normal load.The dominated wear mechanism is microfracture.
An ultrafine grained Fe-40Al intermetallic compound is fabricated by a selfpropagating high temperature synthesis (SHS) casting. The XRD result shows that the Fe-40Al intermetallic compound consists of the B2 FeAl phase. The Fe-40Al intermetallic compound presents ultrafine grain size in the range from 100-600 nm, leading from the high nucleation rate and the low growth rate. The Fe-40Al intermetallic compound exhibits high hardness (3.4 GPa) and high bending strength (830 MPa) and high compressive strength (2700 MPa) which originate from the ultrafine-structure in the material. the effect of the load on dry-sliding wear rate of the material against AISI52100 steel was investigated. wear wear increases with the increase of normal load. dom dom wear mechanism is microfracture.