Record number :
Title of article :
Effect of WC on the residual stress in the laser treated HVOF coating
Author/Authors :
Z.Y. Taha-al، نويسنده , , M.S Hashmi، نويسنده , , B.S. Yilbas، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2009
Pages :
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Abstract :
HVOF coating of diamalloy 1005 containing WC particles onto steel (304) is considered and laser melting of the coating is carried out. The effect of WC content on the residual stress formed in the coating is examined. Temperature rise and the temperature gradient developed in the coating is modeled and predicted. XRD technique is used to measure the residual stress in the coating while the analytical formulation is used to predict the residual stress at the coating base material interface. The indentation tests are carried out to measure the Youngʹs modulus and fracture toughness of the coating with and without WC content. It is found that existing of WC modifies temperature rise and the temperature gradient in the coating; in which case, increasing WC content reduces the temperature gradient. The Youngʹs modulus, the magnitude of the residual stress, and the fracture toughness of the coating increase with increasing WC content in the coating.
Keywords :
Diamalloy 1005 , Inconel 625 , WC , Residual stress , HVOF
Journal title :
Journal of Materials Processing Technology
Link To Document :