Nanostructural Layer and Properties of 35 CrMo Steel Rolled by Cross-Rolling

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Abstract:

A nanostructural layer was formed on the surface of 35CrMo steel rods rolled by cross-rolling. The layer microstructure is composed of nano-scale grains and some deformation grains, which contains compressive residual stress of -479Mpa. The surface roughness is decreased from Ra 2.1μm to Ra 0.14μm with improvement of the cylindricity and straightness. The rolling strengthenes the surface but has ignorable influence on the mechanical properties of the rods.

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Advanced Materials Research (Volumes 671-674)

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1684-1687

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March 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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