The thermo-mechanical behaviour ofsupported MMC Ni-P(B_4C) coatings was studied with a FEMmodelling and experimental methods. Crystallization residualstresses in the Ni-P matrix were computed by means of a sub-model technique and were measured with two independentmethods: X-ray diffractometry and Vickers indentation. The mainconclusions of the FEM simulation are: (i) the matrix is in atensile stress status and the dispersoid in a compressive one; (ii)the matrix is plasticised; (iii) no appreciable stress gradients as afunction of coatings depth are present, except for slight (~5percent)variations at the coating surface and at the coating-substrateinterface. Experimental residual stresses are consistent and inquantitative agreement with maximum tensile stress values fromFEM simulations. The stress distribution predicted by FEM wasverified with crack path observations by SEM.
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