Published date: Apr 15 2019

Journal Title: KnE Engineering

Issue title: XIX International scientific-technical conference “The Ural school-seminar of metal scientists-young researchers”

Pages: 158–162

DOI: 10.18502/keg.v1i1.4404

V.V. Voropaev

V. P. Kuznetsov

A. S. Skorobogatov

A.A. Barashova

Research has been done into the influence of friction thermomechanical treatment parameters on forming the structure and properties in a surface layer of 20X13 steel. The paper presents a theoretical approach towards controlling the process variables. A hardened layer with a thickness of 1,7 mm was obtained after 20X13 steel had been subjected to the process. The thickness of the layer that had a microhardness of ≥600HV0,05 turned out to be about 0,75mm while the microstructure of the hardened layer was martensitic, martensitic and perlitic with dispersed inclusions of carbides. It was established that the feed has the biggest influence on the thickness of the hardened layer.

Keywords: friction stir processing, rotation speed, tool feed, normal force, microhardness, microstructure.

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