Dry Sliding Tribological Behavior of Cryotreated Cr–V Ledeburitic Tool Steel against CuSn6 Counterpart. Issue 4 (18th August 2022)

• Record Type: Journal Article
• Authors: Yarasu, Venu; Hornik, Jakub; Jurci, Peter
• Other Names: Asnafi Nader guestEditor.
• Is Part Of: Steel research international. Volume 94:Issue 4(2023)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2022-08-18
• Subjects: Cr–V tool steels -- cryogenic treatments -- CuSn6 -- microstructures -- Taguchi optimization -- tribological characteristics; Steel -- Periodicals; Steel -- Metallurgy -- Periodicals; 669.142
• DOI: 10.1002/srin.202200453
• Languages: English
• ISSNs: 1611-3683

Abstract

Abstract : The purpose herein is to assess the impact of different combinations of cryogenic treatments and tempering regimes on tribological properties of Cr–V tool steel against a CuSn6 counterpart. Dry sliding wear experiments are performed using a pin‐on‐disk tribometer according to the Taguchi method. Tribological behavior is investigated under four process parameters at mixed levels: cryotemperatures (−75, −140, or −196 °C), tempering temperatures (170 or 530 °C), sliding velocity (0.064, 0.128, 0.1885 m s −1 ), and load (1, 5, 10 N). According to the analysis, the minimum friction coefficient is obtained by cryotreatment at −140 °C combined with 170 °C tempering, with a sliding velocity of 0.128 m s −1 and load of 10 N. For the minimum counterpart´s material adhesion level, cryogenic treatment at −196 °C followed by tempering at 530 °C, sliding velocity of 0.1885 m s −1, and applied load of 1 N are the optimum settings. The analysis of variance model shows that the load (39.2%) has statistical significance on the friction coefficient, while the load (59.1%) and tempering temperature (18.0%) have statistical significance on adhesion levels. The tribological behavior of the steel is explained by thorough microstructural examinations using scanning electron microscopy coupled with energy‐dispersive spectroscopy. Abstract : The influence of heat treatment conditions on the adhesive wear behavior of Vanadis 6 steel is established using statistical methods. The results reveal that lower cryogenic and higher tempering temperatures reduce the adhesive wear of cryogenically treated Vanadis 6 steel.