STUDYING THE PROPERTIES OF STEEL 20 AFTER LOW-TEMPERATURE GAS-BARIC NITRIDING
Abstract
The paper considers a little studied process of low-temperature gas-baric nitriding in closed containers
without the use of ammonia. The processing process is environmentally friendly and energy-saving. The example
of steel 20 shows the efficiency of processing low-carbon and low-alloy steels of the ferrite-pearlitic class. The
resulting layers based on α-solid solution have a higher growth rate than in other of low-temperature gas nitriding
processes. The kinetics of the processing process and the wear resistance of the resulting layers were studied on a
Skoda-Savina type machine. An increase in the hardness of nitrided specimens (by 3–4 times), wear resistance (by
4–9 times), combined with the formation of compressive residual stresses on the surface, will also increase the
performance of machined parts.
References
2.Lahtin Ju.M., Kogan Ja.D., Shpis G.-J., Bemer Z. Teorija i tehnologija azotirovanija. – M.: Metallurgija, 1991, –320 s.
3.Himiko-termicheskaja obrabotka metallov i splavov. / Spravochnik pod redakciej prof. L.S. Ljahovicha. – M.: Metallurgija, 1981. – 424 s.
4.Krukovich M.G. Modelirovanie processa azotirovanija // MiTOM. - 2004, № 1. S. 21 – 25.
5.Gerasimov S.A., Golikov V.A., Gress M.A., Muhin G.G., Snop V.I. Gazobaricheskoe azotirovanie stalej // MiTOM, 2002, № 6. S. 7 – 9.
6.Fedotova A.D., Krukovich M.G. Prediktivnyj raschet tolshhiny faz azotirovannyh sloev. // Mezhdunarodnyj nauchnoissledovatel'skij zhurnal. – 2021. – №12-1 (114).
– S.108-113. doi.org/10.23670/IRJ.2021.114.12.016.
7.Ljahovich L.S., Voroshnin L.G., Shherbakov Je.P., Panich G.G. Silicirovanie metallov i splavov. – Mn.: Nauka i tehnika, 1972, 277 s.
8.A. s. 522280 SSSR, MPK S 23 S 9/10. Sostav sredy dlja cirkonosilicirovanija / Ljahovich L.S., Krukovich M.G., Turov Ju.V., Naumchik A.A., Levitan S.N. (SSSR). 2079143/01; zajavleno 26.11.74; oubl.25.07.76, Bjul.№ 27.
9.Krukovich M.G., Fedotova A.D. Puti povyshenija zharostojkosti silicirovannyh sloev // Mezhdunarodnyj nauchno-issledovatel'skij zhurnal. № 1(91). 2020. Chast' 1. S. 18 – 21. DOI: 10.18454/IRJ.2227-6017.
10.Krukovich M.G., Fedotova A.D. Azotirovanie legirovannyh stalej v tverdyh sredah //Novye materiala i tehnologii v mashinostroenii. 2021, Vyp. 33, S. 33 - 37
11.Lahtin Ju.M., Arzamasov B.N. Himikotermicheskaja obrabotka metallov. – M.: Metallurgija, 1985, 256 s.
12.Ratajski J. Model of growth kinetics of nitride layers in the binary Fe – N system.//Nitriding technology. Proceedings the 9 th international seminar. Warsaw, Poland 2003. P. 149-159.
13.Arzamasov B.N. Bratuhin A.G., Eliseev Ju.S., Panajoti T.A. Ionnaja himiko-termicheskaja obrabotka splavov. – M.: Izd. MGTU im. N.Je. Baumana, 1999, 400 s.
CC BY-ND
A work licensed in this way allows the following:
1. The freedom to use and perform the work: The licensee must be allowed to make any use, private or public, of the work.
2. The freedom to study the work and apply the information: The licensee must be allowed to examine the work and to use the knowledge gained from the work in any way. The license may not, for example, restrict "reverse engineering."
2. The freedom to redistribute copies: Copies may be sold, swapped or given away for free, in the same form as the original.
