headerphoto

Volume 44, No 2, 2022, Pages 310-321


Download full text in PDF

Influence of Heat Treatment of 30MnB5 Steel on its Micromechanical Properties and Resistance to
Abrasion Wear

Authors:

Myroslav Khoma , Vasyl Vynar , Chrystyna Vasyliv Vadym Zakiev , Bohdan Datsko , Myron Golovchuk

DOI: 10.24874/ti.1146.06.21.02

Received: 23 June 2021
Revised: 30 July 2021
Accepted: 15 February 2022
Published: 15 June 2022

Abstract:

The microstructure evolution of the 30MnB5 steel, tempered at the different temperatures, the micromechanical properties and wear resistance was studied.
The correlation between results of sclerometry and wear resistance of steel was found. Minimal work of plastic deformation (29.4210-8 J) accompanies the maximal wear resistance of steel. This makes it possible to use sclerometry as an express method for testing steel for wear resistance after various types of heat treatment.
The abrasive wear resistance of 30MnB5 steel depends on its hardness which provides resistance of material to micro-cutting by abrasive grain. Maximal wear resistance of steel is observed after quenching and tempering at 200C, when its hardness is 54 and 49 HRC.
The abrasive wear of quenched and tempered at 200C steel 30MnB5 is the result of micro-cutting and micro-ploughing. The plastic deformation, displacement of material along the grooves, pit holes and chipping of the brittle components are observed on the friction surface of steel after tempering at 400C and 600C. Surface damage at the friction tests with an unfixed abrasive is less than with a fixed abrasive.

Keywords:

Boron-containing steel, Heat treatment, Dynamic indentation, Scratch test, Abrasive wear, Microstructure



Last Edition


tribology

Volume 44
Number 2
June 2022


Crossref logo





Announcements


TiI news RSS 2.0

Table of contents