Browse Publications Technical Papers 2000-01-3175
2000-12-01

A Comparative Study Between Salt Bath and Plasma Nitrocarburizing Processes for Application in Piston Rods 2000-01-3175

The quality of the nitrocarburized layer has a decisive influence in the service life of components with pistons that work together with polymeric seals, since it interferes in the abrasion and wear mechanisms of the involved materials.
Thus it is necessary to select the most adequate process to apply in a given component aiming for a quality improvement and warranty costs reduction.
The literature offers a great volume of information about the different nitriding processes, but there are few reports comparing them. In this paper the salt bath and plasma processes are discussed concerning the white layer metallography, roughness and the process effect on corrosion resistance of gas spring rods manufactured with SAE 1040 steel.

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