Adherence of ion beam sputter deposited metal films on H-13 steel

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Abstract
An electron bombardment argon ion source was used to sputter deposit 17 different metal and metal oxide films ranging in thickness from 1 to 8 μm on H-13 steel substrates. A tensile test apparatus was used to quantitatively measure the film adherence to the substrate surface. Comparisons in bond strength were made between ion beam, ion plating and rf deposited films. This study was the first of a three phase program to find a protective coating to prevent heat checking in H-13 steel dies used for aluminum die casting. The results of exposing the coated substrates to temperatures up to 700 °C are also presented.

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