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2001•Journal of Yangzhou UniversityRequires access

THE APPLICATION OF CATALYTIC NITROCARBURIZING ON NODULAR CAST IRON PISTONS

Huang Yan

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Abstract

The nodular cast iron pistons were nitrocarburized with the catalytic of Cl and Ti over 565 ℃, the FeCN eutectoid temperature. The microstructure and hardness testing were carried out. The results show that the this kind of catalytic nitrocarburizing processes is: rapidin velocity and can get, high case hardness. The compound case thickness and the density increase with the rising of process temperature. The nodular cast iron piston parts treated with this method have less deformation, higher wear resistance and longer working life.

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What this paper is about

The nodular cast iron pistons were nitrocarburized with the catalytic of Cl and Ti over 565 ℃, the FeCN eutectoid temperature. The microstructure and hardness testing were carried out. The results show that the this kind of catalytic nitrocarburizing processes is: rapidin velocity and can get, high case hardness. The compound case thickness and the density increase with the rising of process temperature. The nodular cast iron piston parts treated with this method have less deformation, higher wear resistance and longer working life.

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Available abstract

The nodular cast iron pistons were nitrocarburized with the catalytic of Cl and Ti over 565 ℃, the FeCN eutectoid temperature. The microstructure and hardness testing were carried out. The results show that the this kind of catalytic nitrocarburizing processes is: rapidin velocity and can get, high case hardness. The compound case thickness and the density increase with the rising of process temperature. The nodular cast iron piston parts treated with this method have less deformation, higher wear resistance and longer working life.

Key concepts: Cast iron, Eutectic system, Materials science, Metallurgy, Microstructure, Piston (optics), Deformation (meteorology), Wear resistance

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