Low-Cycle Fatigue of Steels After Ion Nitriding in Hydrogen-Free Atmospheres

We present the results of investigation of low-cycle fatigue in bending for different types of steel after ion nitriding in hydrogen-free saturating atmospheres. The recommendations concerning the field of applicability of this technology of surface hardening in the process of operation are given. W...

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Bibliographic Details
Published in:Materials science (New York, N.Y.) N.Y.), 2016-11, Vol.52 (3), p.402-406
Main Authors: Kaplun, P. V., Gonchar, V. A.
Format: Article
Language:English
Subjects:
Alloys
Atmospheres
Bending fatigue
Characterization and Evaluation of Materials
Chemistry and Materials Science
Diffusion layers
Fatigue strength
Hydrogen
Ion nitriding
Low cycle fatigue
Materials Science
Metal fatigue
Optimization
Saturation
Solid Mechanics
Structural Materials
Structural steel
Structural steels
Surface hardening
Surface layers
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Summary:We present the results of investigation of low-cycle fatigue in bending for different types of steel after ion nitriding in hydrogen-free saturating atmospheres. The recommendations concerning the field of applicability of this technology of surface hardening in the process of operation are given. We make a conclusion that the procedure of ionic hardening in hydrogen-free atmospheres makes it possible to change the physicomechanical properties of the surface layers in broad ranges and substantially increase the low-cycle fatigue strength of structural steels. The maximum durability is attained by optimizing the parameters of the process of diffusion saturation.
ISSN:1068-820X
1573-885X
DOI:10.1007/s11003-016-9971-8