Title of article :
Metallic tribological compatibility of laser clad Mo2Ni3Si/NiSi metal silicide coatings
Author/Authors :
Lu، نويسنده , , X.D. and Wang، نويسنده , , H.M.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2005
Abstract :
Novel wear-resistant Mo2Ni3Si reinforced metal silicide coatings were fabricated on a substrate of austenitic stainless steel AISI 321 by laser cladding with Mo–Ni–Si alloy powders. Microstructure of the coating was characterized by optical microscopy (OM), scanning electron microscopy (SEM), X-ray diffraction (XRD) and energy dispersive X-ray analysis (EDS). Wear resistance of the coatings was evaluated under block-on-wheel dry sliding wear test condition at room temperature. Results indicate that the coatings have excellent wear resistance and tribological compatibility to a metallic counterpart under dry sliding wear test conditions coupling with conventional metallic materials because of the high hardness and strong atomic bonds of the ternary metal silicide Mo2Ni3Si with MgZn2 type Laves crystal structure.
Keywords :
Coating , Laser cladding , Tribological compatibility , Metal silicide , WEAR
Journal title :
Surface and Coatings Technology
Journal title :
Surface and Coatings Technology