Effect of Heat Treatment on Tribological Properties of PM S390MC High-Speed Steel

Cajner, Franjo and Šolić, Sanja and Kumić, Ivan and Leskovšek, Vojteh (2011) Effect of Heat Treatment on Tribological Properties of PM S390MC High-Speed Steel. = Effect of Heat Treatment on Tribological Properties of PM S390MC High-Speed Steel. In: 3rd International IFHTSE Conference on "Heat treatment and Surface engineering of Tools and Dies", Wels, Austrija.

Full text not available from this repository.

Abstract

ABSTRACT: Tools for chip-forming machining are affected by various wear mechanisms. Since high-speed steel is among the materials used for the manufacture of these tools, this research was aimed at investigating the effect of heat treatment on tribological properties of high speed steel. The PM S390 MC steel produced by powder metal forming was used for testing. Test samples made of this steel were heat treated by a common procedure and also by deep cryogenic treatment. The latter process included the parameters which had been determined in the previous research. In order to investigate the effect of nitriding, some test samples were nitrided. The microstructure and hardness of the samples were tested. The load scanning test was used to determine the resistance to adhesive wear (galling), the “ball-on-flat” method was used to determine the resistance to erosion (angle of incidence 30º – erodent Ottawa 50/70) and dry sliding wear resistance, and the Tafel extrapolation method to determine corrosion resistance. Results of testing by the “ball-on-flat” method showed an increased wear resistance of deep cryogenically treated samples in the conditions of dry abrasive wear. The testing of resistance to adhesive wear (galling) by means of the load scanning test showed that nitriding significantly improved wear resistance, while deep cryogenically treated samples exhibited slightly lower wear resistance

Item Type:	Conference or Workshop Item (Lecture)
Keywords (Croatian):	deep cryogenic treatment, nitriding, high speed steel, galling, wear resistance
Subjects:	TECHNICAL SCIENCE > Mechanical Engineering
Divisions:	1000 Department of Materials > 1020 Chair of Heat Treatment and Surface Engineering 200 Department of Engineering Mechanics
Date Deposited:	20 Sep 2016 08:48
Last Modified:	20 Sep 2016 08:48
URI:	http://repozitorij.fsb.hr/id/eprint/6467

Actions (login required)

View Item