Record number :
1822138
Title of article :
Mechanical and tribological properties of nanocomposite TiSiN coatings
Author/Authors :
Cheng، نويسنده , , Y.H. and Browne، نويسنده , , T. and Heckerman، نويسنده , , B. and Meletis، نويسنده , , E.I.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2010
Pages :
7
From page :
2123
To page :
2129
Abstract :
TiSiN coatings with a thickness of 2.5 μm were deposited using a Large Area Filtered Arc Deposition (LAFAD) technique with TiSi targets having different Si content. The influence of the Si content in the coatings on the mechanical properties and tribological behaviors of the TiSiN coatings were systematically studied using nanoindentation and a pin-on-disk tribometer. Nanoindentation results show that the hardness and Youngʹs modulus of the TiSiN coatings increase with increasing Si content in the coatings. Wear test results indicate that the wear rate and friction coefficient of the 440a stainless steel coupons were significantly reduced by deposition of the TiSiN coatings, and the tribological behaviors of the TiSiN coatings are strongly dependent on the Si content in the coatings and the testing ball material. TiSiN coatings exhibit similar friction coefficient when tested against Al2O3 and 302 stainless steel balls, but increasing Si content in the coatings causes an increase in the friction coefficient of the TiSiN coatings. With the increase in the Si content in the coatings, the wear rate of the TiSiN coatings decreases when tested against Al2O3 balls, but increases significantly when tested against 302 stainless steel balls. The capability of forming a transfer layer on the ball surface contributes to the change in the friction coefficient and wear rate with Si content in the coating and ball materials.
Keywords :
Nanocomposite coating , Mechanical Property , wear property , Filtered cathodic arc , Abrasive wear , Adhesion wear
Journal title :
Surface and Coatings Technology
Journal title :
Surface and Coatings Technology
Serial Year :
2010
Link To Document :
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