Study of microhardness and structure of tool steels after ion-plasma nitriding in a glow discharge

Authors

  • Mamontov Daniil Valeryevich Ufa University of Science and Technology
  • Sklizkov Ivan Dmitrievich Ufa University of Science and Technology
  • Vafin Ruslan Karimovich Ufa University of Science and Technology
  • Ramazanov Kamil Nurullaveich Ufa University of Science and Technology
  • Faskhetdinov Rostislav Raisovich Ufa University of Science and Technology
  • Zimasov Danir Shamilovich Ufa University of Science and Technology

Keywords:

tool steel, ion-plasma nitriding, glow discharge, micro-hardness, microstructure

Abstract

In this paper, the effect of ion-plasma nitriding (IPA) on the microhardness and structure of tool steels is investigated. Samples of HSS M2 and P18 steels, quenched at 1300℃ and then tempered three times at 550℃, were used for the study. The IPA was carried out in a gas mixture consisting of 50% argon, 35% nitrogen and 15% hydrogen at a pressure of 250 Pa and a surface temperature of 400°C, 500°C and 600°C for 3h, 6h and 9h, 9 h. It was found that the highest surface hardness of 1600 HV for HSS M2 steel specimens and 1500 HV for P18 steel specimens were observed after IPA in TR at 500℃ for 9 h. The maximum hardened layer depth of 120 μm for HSS M2 specimen and 100 μm for P18 specimen were observed after treatment at the same temperature for 6 and 9 hours

Author Biographies

Mamontov Daniil Valeryevich, Ufa University of Science and Technology

postgraduate student of the Department of Mechanical Engineering Technology, FGBOU VO "Ufa University of Science and Technology", Master's degree in design and technological support of mechanical engineering (2022, FGBOU VO "UGATU")

Sklizkov Ivan Dmitrievich, Ufa University of Science and Technology

postgraduate student of the Department of Mechanical Engineering Technology, FGBOU VO "Ufa University of Science and Technology", Master's degree in design and technological support of mechanical engineering (2022, FGBOU VO "UGATU")

Vafin Ruslan Karimovich, Ufa University of Science and Technology

Ph.D. of Engineering Sciences, Associate Professor of the Department of Mechanical Engineering Technology, FGBOU VO "Ufa University of Science and Technolog"

Ramazanov Kamil Nurullaveich, Ufa University of Science and Technology

Holder of an Advanced Doctorate in Engineering Sciences, Professor, Head of the Department of Mechanical Engineering Technology, FGBOU VO "Ufa University of Science and Technology"

Faskhetdinov Rostislav Raisovich, Ufa University of Science and Technology

4th year student of the Department of Mechanical Engineering Technology, FGBOU VO "Ufa University of Science and Technology"

Zimasov Danir Shamilovich, Ufa University of Science and Technology

4th year student of the Department of Mechanical Engineering Technology, FGBOU VO "Ufa University of Science and Technology"

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Published

2024-15-01

Issue

Vol. 27 No. 4(102) (2023)

Section

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