Криогенное упрочнение для повышения эффективности технологий обработки инструмента из стали Х12МФ

Yu O Mikhailov; N A Kokorin; V V Tarasov; S N Knyazev; I S Trifonov

doi:10.22213/2413-1172-2017-4-23-25

Authors

Y. O. Mikhailov Kalashnikov ISTU
N. A. Kokorin ”SPC “CryoTechResourse” Ltd
V. V. Tarasov Institute of Mechanics, Ural Branch of Russian Academy of Sciences
S. N. Knyazev Kalashnikov ISTU
I. S. Trifonov Kalashnikov ISTU

DOI:

https://doi.org/10.22213/2413-1172-2017-4-23-25

Keywords:

thermal and cryogenic processing, application of PVD-coating, technology, abrasive wear, chemical testin

Abstract

A comparative study of abrasive wear resistance of Х12МФ steel after hardening by using heat treatment and application technology of nanostructured PVD - coating combined with subsequent cryogenic treating is carried out. Laboratory tests and operational testing of the proposed strengthening technology have shown that the use of cryogenic treatment is an effective means of increasing the life (wear resistance) of the tool from Х12МФ steel and this type of treatment can be recommended for wider industrial use. The technology provides cooling of the metal, which has been quenched and tempered, to the temperature of liquid nitrogen, aging at this temperature and subsequent low tempering. The samples subjected to cryogenic treating are less sensitive to the increase in abrasive grain, while the wear resistance characteristics of the samples are 19-22 % higher in comparison with the samples after heat treatment. The technology of applying nanostructured PVD-coatings allows to increase the wear resistance by 51-66 % in comparison with the heat treatment technology of the samples and by 38-59 % compared to cryogenic treating. Combined PVD- coating technology and cryogenic treating allows for achieving a wear-resistance increase of 61 to 71 % compared to heat treatment and 14-20 % compared to PVD-coating (without cryogenic treating).

Author Biographies

Y. O. Mikhailov, Kalashnikov ISTU

DSc in Engineering, Professor

N. A. Kokorin, ”SPC “CryoTechResourse” Ltd

PhD in Engineering, Associate Professor

V. V. Tarasov, Institute of Mechanics, Ural Branch of Russian Academy of Sciences

DSc in Engineering, Professor

S. N. Knyazev, Kalashnikov ISTU

PhD in Engineering

I. S. Trifonov, Kalashnikov ISTU

Post-graduate

References

Носова Е. А., Кузина А. А., Ибатуллин И. Д. Влияние отпуска на поверхностные структурные изменения в штамповых сталях У8, Х12МФ, 30ХГСА // Известия Самарского НЦ РАН. 2015. Т. 17, № 6(2). С. 375-383.

Кокорин Н. А., Тарасов В. В., Трифонов И. С. Криогенное упрочнение промышленных ножей из стали 9ХС для повышения их износостойкости // Химическая физика и мезоскопия. 2016. Т. 18, № 2. С. 257-264.

Гугля А. Г., Неклюдов И. М. Покрытия на базе нитрида хрома. Опыт создания и исследования // Успехи физики металлов. 2005. Т. 6. С. 197-232.

Пат. РФ № 2601502 МПК G01N3/56 Способ испытания материала на абразивное изнашивание / В. В. Тарасов, И. С. Трифонов, Ю. В. Пузанов, А. Г. Бажин. Опубл. 10.11.2016.

Кокорин Н. А. Повышение ресурса прокатных валков криогенной обработкой // Труды Х конгресса прокатчиков : сб. статей. М. : ООО «ВАШ ФОРМАТ», 2015. Т. 2. С. 217-220.