Adhesion Strength Test Comparison for HVOF Nickel-Based Superalloy Powders on Steel Substrates and Layer Characterization

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Thermal sprayed nickel chrome powders are known as the best materials for combined wear and corrosion applications and represent a good alternative to hard chrome plating. The coating from these materials are resistant to wear abrasion, contact with hard surfaces, particle erosion, fretting and have excellent submerged saltwater corrosion resistance. The work in this paper is focused on determining the adhesion strength for nickel powders and structural characterization of the deposited layers using metallographic analysis. The adhesion strength testing was carried out in accordance with ASTM C633 procedure. During the experimental program, an investigation was also carried out for studying the effect of the HVOF process on the air quality while operating with the powders mentioned. Study showed 2 times higher adhesion strength of coating on structural steel substrates than stainless steel. Variations in regimes gave understanding about the most recommended thermal spraying parameters for Metco 5803 powder.

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Edited by:

Nicușor Alin Sîrbu and Aurel Valentin Bîrdeanu

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126-133

Citation:

M. Milgravis et al., "Adhesion Strength Test Comparison for HVOF Nickel-Based Superalloy Powders on Steel Substrates and Layer Characterization", Advanced Materials Research, Vol. 1146, pp. 126-133, 2018

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April 2018

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