Structural Aspects of Zr+ Ion-Beam Surface Modification and Mechanical Properties of 12CrMoV Steel

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Surface modification is an effective way both to protect structural materials and to improve their mechanical properties. However under mechanical loading the distinction of elastic moduli of a modified surface layer and adjacent bulk material causes the stress concentrators to occur, whose relaxation may give rise to localized development of plastic deformation or fracture [1]. Under cyclic loading such distinction of the properties brings to multiple microcracking of strengthened surface layer, to act as structural micronotches [2, 3]. Therefore, optimized modes and parameters for surface layer modification are to be determined being a certain compromise between strength/ductility of the layer and its thickness etc.

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Edited by:

Dr. Dmitry A. Chinakhov

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81-86

Citation:

I. Vlasov et al., "Structural Aspects of Zr+ Ion-Beam Surface Modification and Mechanical Properties of 12CrMoV Steel", Applied Mechanics and Materials, Vol. 770, pp. 81-86, 2015

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June 2015

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