Mechanical Properties and Change in Microstructure in the Nitriding Process of Cu-Added Steels

Kaoru Kawasaki; Katsuya Ujita; Jun Takahashi; Masaaki Sugiyama; Kazuto Kawakami

doi:10.4028/www.scientific.net/MSF.638-642.852

Paper Titles

Study on the Dimensional Changes and Residual Stresses in Carbonitrided and Ferritic Nitrocarburized SAE 1010 Plain Carbon Steel
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Mechanism of Whisker Growth Suppression by Lead Co-Deposition on Electroplated Tin Film
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Production of Rapidly Solidified Composite Deposits Based on Iron with Vanadium Carbide Particles by Plasma Spraying
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Wear and Corrosion Resistance of Electroless Nickel-Boron Coated Mild Steel
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Mechanical Properties and Change in Microstructure in the Nitriding Process of Cu-Added Steels
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Revisiting Carbon Based Metallic Compounds – Nanoscale Surface Science and Environmental Catalysis
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Microstructure and Properties of Friction Surfaced Stainless Steel and Tool Steel Coatings
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Nanophase Hardfacing New Possibilities for Functional Surfaces
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Influence the Thermal Process of the Removing the Varnish Coats to the Cleanness of the Surface Aluminium Scrap
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HomeMaterials Science ForumMaterials Science Forum Vols. 638-642Mechanical Properties and Change in Microstructure...

Mechanical Properties and Change in Microstructure in the Nitriding Process of Cu-Added Steels

Abstract:

From the point of view of nitriding treatment(570°C), Cu precipitation is also occurred in the steel containing 1.3mass%Cu at this temperature. In this study, the behavior of nitriding in ultra low carbon steels containing Cr and/or Al and/or V are investigated. The following results are obtained : (1)After nitriding treatment the distribution of vickers hardness(Hv) differs in added nitriding element. (2)Profile of hardness in thickness is resulted from mainly precipitation hardening of nitride. (3)The high fatigue limit of nitrided steel is occurred by residual stress in vicinity of the surface. (4) Nitride precipitation is promoted by Cu precipitation that occurs in early stage of heat treatment.