アルミニウム合金のイオン窒化.pdf

Studies on Ion Nitriding of Aluminum and Its Alloys Hideo Tachikawa 400500 HV TiN HCl Studies were made on low temperature ion nitriding of vanadium, manganese, iron and nickel in alloys bring about aluminum and its alloys by dc glow discharge in nitrogen strong adhesion between the layer and the substrate. Micro- atmosphere. Aluminum-nitride layers were formed on the vickers hardness of the layers ranged from HV 1000 to surfaces of aluminum and its alloys even at temperatures as HV 1600, depending on the kind of alloys. The formed low as 450as a result of argon sputtering prior to nitriding. layers showed excellent resistance to wear compared with In this ion nitriding process, not only formation of nitride those of commercially available surface treating such as layers but also sputtering of the formed nitride layers due to anodic oxidation, plasma sprays and electrodeposition. nitrogen ion bombardment proceeded simultaneously. The The nitriding provides improved corrosion resistance in growth rate of the layers strongly depends on nitriding 1N-HCl. The nitriding treatment can be operated with the temperature and alloy elements. The sputtering rate depends appar