INCREASE OF THE OPERATIONAL PROPERTIES OF WELD AND PLASMA COATINGS USING NANOPOWDERS
In this work, studies concerning determination of the oxide nanoparticles effect on structure and performance of the welds and plasma coatings were conducted. Ways ofintroducing nanodisperse refractory powders to the weld pool and how to cover with thedeactivation of nanoparticles powder were determ...
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| Format: | Article |
| Language: | English |
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Universidad Central "Marta Abreu" de Las Villas
2016-09-01
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| Series: | Revista Centro Azúcar |
| Subjects: | |
| Online Access: | http://centroazucar.uclv.edu.cu/index.php/centro_azucar/article/view/147 |
| _version_ | 1818115348934688768 |
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| author | Andrii Chornyi Igor Smirnov Maksym Ziberov Jorge Luis García-Jacomino |
| author_facet | Andrii Chornyi Igor Smirnov Maksym Ziberov Jorge Luis García-Jacomino |
| author_sort | Andrii Chornyi |
| collection | DOAJ |
| description | In this work, studies concerning determination of the oxide nanoparticles effect on structure and performance of the welds and plasma coatings were conducted. Ways ofintroducing nanodisperse refractory powders to the weld pool and how to cover with thedeactivation of nanoparticles powder were determined. Introducing of the nanoparticles in the molten pool during the deposition and the coating was carried out by preparing a powder mixture by mechano-chemical processing in special high-energy intensive planetary mills. Structural studies of welds with nanooxides additives in the weld pool showed the formation of milled dispersed structure with microhardness 264-304 MPa. Statistical mean value of the number of non-metallic inclusions was defined. Mechanical testing of welds showed growth of the yield as well as tensile strength, when titanium and aluminum nanooxides were introduced into the weld pool. The most significant effect on these parameters has aluminum nanooxide in an amount of 0.5 vol.%, increasing the yield strength by 49 % and the tensile strength by 23 %. The toughness is mostly affected by titanium oxide in an amount of 1 vol.%., increasing its value by about 2 times. In turn, the introduction of alumina nanopowder in quantity 1,5 vol.% into the plasma coatings allowed to reduce friction and increase wear resistance of coatings by 2-3 times. |
| first_indexed | 2024-12-11T04:05:12Z |
| format | Article |
| id | doaj.art-930a188b01924b00a2a95d94476da3bb |
| institution | Directory Open Access Journal |
| issn | 0253-5777 2223-4861 |
| language | English |
| last_indexed | 2024-12-11T04:05:12Z |
| publishDate | 2016-09-01 |
| publisher | Universidad Central "Marta Abreu" de Las Villas |
| record_format | Article |
| series | Revista Centro Azúcar |
| spelling | doaj.art-930a188b01924b00a2a95d94476da3bb2022-12-22T01:21:32ZengUniversidad Central "Marta Abreu" de Las VillasRevista Centro Azúcar0253-57772223-48612016-09-0143388147INCREASE OF THE OPERATIONAL PROPERTIES OF WELD AND PLASMA COATINGS USING NANOPOWDERSAndrii Chornyi0Igor Smirnov1Maksym Ziberov2Jorge Luis García-Jacomino3 National Technical University of Ukraine “Kyiv Polytechnic Institute”, Welding Department, 6/2 Dashavska Street, BOX 03056, Kyiv-UkraineNational Technical University of Ukraine “Kyiv Polytechnic Institute”, Welding Department, 6/2 Dashavska Street, BOX 03056, Kyiv-Ukraine Federal University of Uberlândia, Department of Mechanical Engineering, Av. João Naves de Ávila, 2121, BOX 38400-902, Uberlândia-MG-BrazilFacultad de Ingeniería Mecánica e Industrial. Universidad Central “Marta Abreu” de las Villas. Carretera a Camajuaní km 5 ½, Santa Clara, Villa Clara, CubaIn this work, studies concerning determination of the oxide nanoparticles effect on structure and performance of the welds and plasma coatings were conducted. Ways ofintroducing nanodisperse refractory powders to the weld pool and how to cover with thedeactivation of nanoparticles powder were determined. Introducing of the nanoparticles in the molten pool during the deposition and the coating was carried out by preparing a powder mixture by mechano-chemical processing in special high-energy intensive planetary mills. Structural studies of welds with nanooxides additives in the weld pool showed the formation of milled dispersed structure with microhardness 264-304 MPa. Statistical mean value of the number of non-metallic inclusions was defined. Mechanical testing of welds showed growth of the yield as well as tensile strength, when titanium and aluminum nanooxides were introduced into the weld pool. The most significant effect on these parameters has aluminum nanooxide in an amount of 0.5 vol.%, increasing the yield strength by 49 % and the tensile strength by 23 %. The toughness is mostly affected by titanium oxide in an amount of 1 vol.%., increasing its value by about 2 times. In turn, the introduction of alumina nanopowder in quantity 1,5 vol.% into the plasma coatings allowed to reduce friction and increase wear resistance of coatings by 2-3 times.http://centroazucar.uclv.edu.cu/index.php/centro_azucar/article/view/147weldingplasma coatingnanopowders. |
| spellingShingle | Andrii Chornyi Igor Smirnov Maksym Ziberov Jorge Luis García-Jacomino INCREASE OF THE OPERATIONAL PROPERTIES OF WELD AND PLASMA COATINGS USING NANOPOWDERS Revista Centro Azúcar welding plasma coating nanopowders. |
| title | INCREASE OF THE OPERATIONAL PROPERTIES OF WELD AND PLASMA COATINGS USING NANOPOWDERS |
| title_full | INCREASE OF THE OPERATIONAL PROPERTIES OF WELD AND PLASMA COATINGS USING NANOPOWDERS |
| title_fullStr | INCREASE OF THE OPERATIONAL PROPERTIES OF WELD AND PLASMA COATINGS USING NANOPOWDERS |
| title_full_unstemmed | INCREASE OF THE OPERATIONAL PROPERTIES OF WELD AND PLASMA COATINGS USING NANOPOWDERS |
| title_short | INCREASE OF THE OPERATIONAL PROPERTIES OF WELD AND PLASMA COATINGS USING NANOPOWDERS |
| title_sort | increase of the operational properties of weld and plasma coatings using nanopowders |
| topic | welding plasma coating nanopowders. |
| url | http://centroazucar.uclv.edu.cu/index.php/centro_azucar/article/view/147 |
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