Features of Cathodic Plasma Electrolytic Nitrocarburizing of Low-Carbon Steel in an Aqueous Electrolyte of Ammonium Nitrate and Glycerin
The possibility of using an aqueous non-toxic electrolyte of ammonium nitrate and glycerin for the cathodic plasma electrolytic nitrocarburizing of low-carbon steel is considered in this paper. Surface morphology and roughness, element and phase compositions, and microhardness of the modified layer...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-10-01
|
| Series: | Metals |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2075-4701/12/10/1773 |
| _version_ | 1797471381425750016 |
|---|---|
| author | Ivan Tambovskiy Tatiana Mukhacheva Ilya Gorokhov Igor Suminov Sergey Silkin Ilya Dyakov Sergei Kusmanov Sergey Grigoriev |
| author_facet | Ivan Tambovskiy Tatiana Mukhacheva Ilya Gorokhov Igor Suminov Sergey Silkin Ilya Dyakov Sergei Kusmanov Sergey Grigoriev |
| author_sort | Ivan Tambovskiy |
| collection | DOAJ |
| description | The possibility of using an aqueous non-toxic electrolyte of ammonium nitrate and glycerin for the cathodic plasma electrolytic nitrocarburizing of low-carbon steel is considered in this paper. Surface morphology and roughness, element and phase compositions, and microhardness of the modified layer were investigated. Kinetic calculations of the processes of nitrogen and carbon diffusion into the steel surface are proposed, taking into account their mutual influence. Wear resistance was studied under dry friction conditions with tool alloy steel as a counter-body. Corrosion studies are performed using potentiodynamic polarization curves in 3.5% sodium chloride solution. The plasma electrolytic nitrocarburizing in an aqueous electrolyte with ammonium nitrate and glycerin is established to increase surface hardness up to 980 HV due to the formation of a nitrocarburized layer with 1.35 ± 0.12% carbon and 0.32 ± 0.08% nitrogen concentration. The influence of erosion in electrolyte plasma and high-temperature oxidation on the morphology and surface roughness is shown. The presence of a dense oxide layer, low surface roughness, and high hardness of the diffusion layer favor a decrease in the friction coefficient by 1.3 times, weight wear by 1.8 times and corrosion current density by 1.4 times. |
| first_indexed | 2024-03-09T19:47:39Z |
| format | Article |
| id | doaj.art-cd2539ba219740f782390ad340cb795c |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-09T19:47:39Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-cd2539ba219740f782390ad340cb795c2023-11-24T01:20:30ZengMDPI AGMetals2075-47012022-10-011210177310.3390/met12101773Features of Cathodic Plasma Electrolytic Nitrocarburizing of Low-Carbon Steel in an Aqueous Electrolyte of Ammonium Nitrate and GlycerinIvan Tambovskiy0Tatiana Mukhacheva1Ilya Gorokhov2Igor Suminov3Sergey Silkin4Ilya Dyakov5Sergei Kusmanov6Sergey Grigoriev7Department of High-Efficiency Machining Technologies, Moscow State University of Technology “STANKIN”, 127994 Moscow, RussiaDepartment of High-Efficiency Machining Technologies, Moscow State University of Technology “STANKIN”, 127994 Moscow, RussiaDepartment of Mathematical and Natural Sciences, Kostroma State University, 156005 Kostroma, RussiaDepartment of High-Efficiency Machining Technologies, Moscow State University of Technology “STANKIN”, 127994 Moscow, RussiaDepartment of Mathematical and Natural Sciences, Kostroma State University, 156005 Kostroma, RussiaDepartment of Mathematical and Natural Sciences, Kostroma State University, 156005 Kostroma, RussiaDepartment of Mathematical and Natural Sciences, Kostroma State University, 156005 Kostroma, RussiaDepartment of High-Efficiency Machining Technologies, Moscow State University of Technology “STANKIN”, 127994 Moscow, RussiaThe possibility of using an aqueous non-toxic electrolyte of ammonium nitrate and glycerin for the cathodic plasma electrolytic nitrocarburizing of low-carbon steel is considered in this paper. Surface morphology and roughness, element and phase compositions, and microhardness of the modified layer were investigated. Kinetic calculations of the processes of nitrogen and carbon diffusion into the steel surface are proposed, taking into account their mutual influence. Wear resistance was studied under dry friction conditions with tool alloy steel as a counter-body. Corrosion studies are performed using potentiodynamic polarization curves in 3.5% sodium chloride solution. The plasma electrolytic nitrocarburizing in an aqueous electrolyte with ammonium nitrate and glycerin is established to increase surface hardness up to 980 HV due to the formation of a nitrocarburized layer with 1.35 ± 0.12% carbon and 0.32 ± 0.08% nitrogen concentration. The influence of erosion in electrolyte plasma and high-temperature oxidation on the morphology and surface roughness is shown. The presence of a dense oxide layer, low surface roughness, and high hardness of the diffusion layer favor a decrease in the friction coefficient by 1.3 times, weight wear by 1.8 times and corrosion current density by 1.4 times.https://www.mdpi.com/2075-4701/12/10/1773surface engineeringplasma electrolytic nitrocarburizinglow-carbon steelsurface roughness and microhardnesswear and corrosion resistance |
| spellingShingle | Ivan Tambovskiy Tatiana Mukhacheva Ilya Gorokhov Igor Suminov Sergey Silkin Ilya Dyakov Sergei Kusmanov Sergey Grigoriev Features of Cathodic Plasma Electrolytic Nitrocarburizing of Low-Carbon Steel in an Aqueous Electrolyte of Ammonium Nitrate and Glycerin Metals surface engineering plasma electrolytic nitrocarburizing low-carbon steel surface roughness and microhardness wear and corrosion resistance |
| title | Features of Cathodic Plasma Electrolytic Nitrocarburizing of Low-Carbon Steel in an Aqueous Electrolyte of Ammonium Nitrate and Glycerin |
| title_full | Features of Cathodic Plasma Electrolytic Nitrocarburizing of Low-Carbon Steel in an Aqueous Electrolyte of Ammonium Nitrate and Glycerin |
| title_fullStr | Features of Cathodic Plasma Electrolytic Nitrocarburizing of Low-Carbon Steel in an Aqueous Electrolyte of Ammonium Nitrate and Glycerin |
| title_full_unstemmed | Features of Cathodic Plasma Electrolytic Nitrocarburizing of Low-Carbon Steel in an Aqueous Electrolyte of Ammonium Nitrate and Glycerin |
| title_short | Features of Cathodic Plasma Electrolytic Nitrocarburizing of Low-Carbon Steel in an Aqueous Electrolyte of Ammonium Nitrate and Glycerin |
| title_sort | features of cathodic plasma electrolytic nitrocarburizing of low carbon steel in an aqueous electrolyte of ammonium nitrate and glycerin |
| topic | surface engineering plasma electrolytic nitrocarburizing low-carbon steel surface roughness and microhardness wear and corrosion resistance |
| url | https://www.mdpi.com/2075-4701/12/10/1773 |
| work_keys_str_mv | AT ivantambovskiy featuresofcathodicplasmaelectrolyticnitrocarburizingoflowcarbonsteelinanaqueouselectrolyteofammoniumnitrateandglycerin AT tatianamukhacheva featuresofcathodicplasmaelectrolyticnitrocarburizingoflowcarbonsteelinanaqueouselectrolyteofammoniumnitrateandglycerin AT ilyagorokhov featuresofcathodicplasmaelectrolyticnitrocarburizingoflowcarbonsteelinanaqueouselectrolyteofammoniumnitrateandglycerin AT igorsuminov featuresofcathodicplasmaelectrolyticnitrocarburizingoflowcarbonsteelinanaqueouselectrolyteofammoniumnitrateandglycerin AT sergeysilkin featuresofcathodicplasmaelectrolyticnitrocarburizingoflowcarbonsteelinanaqueouselectrolyteofammoniumnitrateandglycerin AT ilyadyakov featuresofcathodicplasmaelectrolyticnitrocarburizingoflowcarbonsteelinanaqueouselectrolyteofammoniumnitrateandglycerin AT sergeikusmanov featuresofcathodicplasmaelectrolyticnitrocarburizingoflowcarbonsteelinanaqueouselectrolyteofammoniumnitrateandglycerin AT sergeygrigoriev featuresofcathodicplasmaelectrolyticnitrocarburizingoflowcarbonsteelinanaqueouselectrolyteofammoniumnitrateandglycerin |