113 citations of the journal in the Russian Science Citation Index | Vol. 4 No 4 was published on December 25, 2020. | Control Committee in Education and Science of the Republic of Kazakhstan |


Influence of electrolytic-plasma hardening modes on structure and hardness of 0.34Cr-1Ni-Mo-Fe steel

Number 4_Vol.4

AUTHORS: B.K. Rakhadilov, Z.A. Satbayeva, R.S. Kozhanova, D.R. Baizhan, M.K. Rakhadilov, G.B. Botabayeva

DOI: 10.29317/ejpfm.2020040406

PAGES: 327 - 335

DATE: 2020-12-25


ABSTRACT

The article presents the results of studying the process of electrolytic-plasma hardening of 0.34Cr-1Ni-Mo-Fe steel by surface hardening, as well as the results of the current-voltage characteristics of the cathodic electrolytic-plasma process depending on the composition of the electrolyte. Temperature-time and special modes of electrolytic-plasma hardening of steel 0.34Cr-1Ni-Mo-Fe were determined. The optimal composition of the electrolyte for electrolytic-plasma hardening has been determined, providing a relatively high heating rate and high hardness of the steel surface. It has been determined that after the electrolytic-plasma hardening, the microhardness of 34KhN1M steel increases 2.9 times due to the formation of fine martensite. In this case, the basis of the material does not change, it consists of a ferrite-pearlite structure.


KEYWORDS

electrolytic-plasma hardening, microhardness, structure, steel, electrolyte.


CITED REFERENCES

[1] I.V. Suminov et al., in 2 volumes - M: Technosphere 1 (2011) 464. (in Russian)

[2] A.L. Yerokhin et al., Surface and Coatings Technology 122 (1999) 73-93.

[3] P.N. Belkin, Electronic processing of materials 46(6) (2010) 29-41. (in Russian)

[4] V.S. Niss et al., Surface Engineering. New powder composite materials. Welding. Part 2. Materials of the Intern. symposium, GNPO PM NAS Belarus (2011) 70-73. [in Russian]

[5] M. Skakov et al., Bulletin of KazNTU 3(103) 65-71.

[6] V.N. Duradji, A.S. Parsadanyan, Chisinau: Shtiintsa (1988) 216. (in Russian)

[7] Y.N. Tyurin, A.D. Pogrebnyak, Surface and Coatings Technology 142-144 (2001) 293-299.

[8] S.A. Kusmanov et al., Surf. Coat. Technol. 269 (2015) 308-313.

[9] B. Rakhadilov et al., IOP Conference Series: Materials Science and Engineering 142(1) 012028.

[10] L.G. Zhurerova et al., Journal of Materials Research and Technology (2020) 78-85.

[11] E.V. Parfenov et al., Surface & Coatings Technology 269 (2015) 2-22.


Download file Open file