Investigation of the influence of ionic nitrogen on the structure and mechanical properties of the instrumental quick-steppe steel R6M5 after the SPD

Authors

  • Larisa Rafilevna Shayhutdinova FGBOU VO «Ufimskiy gosudarstvennyy aviacionnyy tehnicheskiy universitet» (UGATU)
  • Ernst Fashievich Hayretdinov FGBOU VO «Ufimskiy gosudarstvennyy aviacionnyy tehnicheskiy universitet» (UGATU)
  • Vil Dayanovich Sitdikov FGBOU VO «Ufimskiy gosudarstvennyy aviacionnyy tehnicheskiy universitet» (UGATU)
  • Yuldash Gamirovich Husainov FGBOU VO «Ufimskiy gosudarstvennyy aviacionnyy tehnicheskiy universitet» (UGATU)
  • Roman Sergeevich Esipov FGBOU VO «Ufimskiy gosudarstvennyy aviacionnyy tehnicheskiy universitet» (UGATU)

Keywords:

Ion nitriding; glow discharge; tool steel; highspeed steel; P6M5; Intensive plastic deformation.

Abstract

The effect of ion nitriding in a glow discharge on the structure and mechanical properties of P6M5 steel obtained by the method of traditional hot thermomechanical treatment after quenching from 1220°C and 3 times tempering 560°C, and also after quenching from 1200°C and single tempering at 560°C C with a preliminary intense plastic deformation (IPD). It has been established that after ion nitriding, a more developed dark, strongly etching diffusion zone is observed in the sample after IPD. It was also found that as a result of ion nitriding, a significant increase in the surface microhardness of the material is observed ~ 1.7 times after the IPD, and ~ 2 times for the sample without IPD in the streakiness region of carbidenitride inclusions. It is proved that the microhardness distribution over the depth of the diffusion zone in the sample after the IPD is smoother, and the thickness of the diffusion layer exceeds ~ 2 times.

Author Biographies

Larisa Rafilevna Shayhutdinova, FGBOU VO «Ufimskiy gosudarstvennyy aviacionnyy tehnicheskiy universitet» (UGATU)

student IATM kaf. MiFM. Issl. vliyaniya IPD na formirovanie struktury i fiziko-mehanicheskih svoystv instrumentalnyh bystrorezhuschih staley

Ernst Fashievich Hayretdinov, FGBOU VO «Ufimskiy gosudarstvennyy aviacionnyy tehnicheskiy universitet» (UGATU)

doc. kaf. MiFM. Dipl. inzhener-mehanik (UGATU, 1962). Kand. tehn. nauk po spec. «Tehnologiya mashinostroeniya» (1967). Issl. iznosostoykosti instrumentov OMD

Vil Dayanovich Sitdikov, FGBOU VO «Ufimskiy gosudarstvennyy aviacionnyy tehnicheskiy universitet» (UGATU)

doc. kaf. fiziki. Dipl. fizik (BGPU, 2002). Kand. fiz.-mat. nauk po spec. «Fizika kondensirovannogo sostoyaniya» (2011). Issl. v oblasti RSA obemnyh nanokristallicheskih materialov

Yuldash Gamirovich Husainov, FGBOU VO «Ufimskiy gosudarstvennyy aviacionnyy tehnicheskiy universitet» (UGATU)

doc. kaf. tehnol. mashinostroeniya. Dipl. inzhener-tehnolog (UGATU, 2012). Kand. tehn. nauk po spec. «Metallovedenie i termicheskaya obrabotka metallov i splavov» (2015). Issl. strukturno-fazovye prevrascheniya i svoystva poverhnostnyh sloev staley pri ionnom azotirovanii v tleyuschem razryade

Roman Sergeevich Esipov, FGBOU VO «Ufimskiy gosudarstvennyy aviacionnyy tehnicheskiy universitet» (UGATU)

magistr IATM kaf. tehnol. mashinostroeniya. Dipl. bakalavr po napravleniyu mash-ie (UGATU, 2016). Issl. v obl. nizkotemperaturnogo ionnogo azotirovaniya staley s ultramelkozernistoy strukturoy v vodorodsoderzhaschey plazme tleyuschego razryada

Downloads

Published

2017-15-12

Issue

Vol. 21 No. 4 (78) (2017): Вестник УГАТУ

Section

MECHANICAL ENGINEERING AND ENGINEERING SCIENCE