Formation of Structural-Phase State in a Cobalt-Chromium-Molybdenum Alloy by Selective Laser Melting; Solid State Phenomena; Vol. 313
| Parent link: | Solid State Phenomena Vol. 313.— 2021.— [P. 50-58] |
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| Institutionell upphovsman: | |
| Övriga upphovsmän: | , , , , |
| Sammanfattning: | Title screen Heat resistant cobalt-based alloys have found a specific niche in the present-day mechanical engineering due to their unique properties. To begin with, cobalt-based alloys are used as corrosion, heat and wear resistant materials intended for aggressive environments and operation at extreme temperatures, e.g. blades, nozzles, swirlers, rings and other elements of turbines and internal combustion engines. Traditional molding methods applied in the mechanical engineering fail to provide necessary operational and technological characteristics of aforementioned machine parts. Owing to selective laser melting it is possible to reduce a production time and manufacturing costs for machine elements with a complex physical configuration and generate an alloy with an extraordinary structure, which is not found in traditionally combined compounds. A structure of cobalt exists in two crystal modifications: a hexagonal close-packed epsilon phase, a low-temperature phase and a face-centered cubic lattice gamma phase, a high-temperature phase. The alloy hardness is directly related to an amount of a low-temperature phase. The laser melting shortens a laser beam impact time on a powder composition due to a higher power and laser travelling speed. A high value of heat conductivity seems to be the reason for rapid solidification and cooling, which, in their turn, increase a percent of an alpha-martensite phase in an alloy and improve the hardness and wear resistance of machine parts. The reported paper summarizes studies aimed at the development of a stable phase structure three-component alloy (Сo-66 mass % Cr-6 mass % Mo) based on the cobalt-chromium-molybdenum system and mixed up via selective laser melting. Режим доступа: по договору с организацией-держателем ресурса |
| Språk: | engelska |
| Publicerad: |
2021
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| Ämnen: | |
| Länkar: | https://doi.org/10.4028/www.scientific.net/SSP.313.50 |
| Materialtyp: | MixedMaterials Elektronisk Bokavsnitt |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=664556 |
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| 200 | 1 | |a Formation of Structural-Phase State in a Cobalt-Chromium-Molybdenum Alloy by Selective Laser Melting |f A. A. Saprykin, Yu. P. Sharkeev, N. A. Saprykina [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 330 | |a Heat resistant cobalt-based alloys have found a specific niche in the present-day mechanical engineering due to their unique properties. To begin with, cobalt-based alloys are used as corrosion, heat and wear resistant materials intended for aggressive environments and operation at extreme temperatures, e.g. blades, nozzles, swirlers, rings and other elements of turbines and internal combustion engines. Traditional molding methods applied in the mechanical engineering fail to provide necessary operational and technological characteristics of aforementioned machine parts. Owing to selective laser melting it is possible to reduce a production time and manufacturing costs for machine elements with a complex physical configuration and generate an alloy with an extraordinary structure, which is not found in traditionally combined compounds. A structure of cobalt exists in two crystal modifications: a hexagonal close-packed epsilon phase, a low-temperature phase and a face-centered cubic lattice gamma phase, a high-temperature phase. The alloy hardness is directly related to an amount of a low-temperature phase. The laser melting shortens a laser beam impact time on a powder composition due to a higher power and laser travelling speed. A high value of heat conductivity seems to be the reason for rapid solidification and cooling, which, in their turn, increase a percent of an alpha-martensite phase in an alloy and improve the hardness and wear resistance of machine parts. The reported paper summarizes studies aimed at the development of a stable phase structure three-component alloy (Сo-66 mass % Cr-6 mass % Mo) based on the cobalt-chromium-molybdenum system and mixed up via selective laser melting. | ||
| 333 | |a Режим доступа: по договору с организацией-держателем ресурса | ||
| 461 | |t Solid State Phenomena | ||
| 463 | |t Vol. 313 |v [P. 50-58] |d 2021 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a additive technologies | |
| 610 | 1 | |a alloy | |
| 610 | 1 | |a melting | |
| 610 | 1 | |a metal powder material | |
| 610 | 1 | |a property | |
| 610 | 1 | |a selective laser melting | |
| 610 | 1 | |a structure | |
| 610 | 1 | |a аддитивные технологии | |
| 610 | 1 | |a сплавы | |
| 610 | 1 | |a плавление | |
| 610 | 1 | |a структура | |
| 701 | 1 | |a Saprykin |b A. A. |c specialist in the field of mechanical engineering |c Head of Department of Yurga technological Institute of Tomsk Polytechnic University, Candidate of technical sciences |f 1977- |g Aleksandr Aleksandrovich |3 (RuTPU)RU\TPU\pers\34522 |9 17903 | |
| 701 | 1 | |a Sharkeev |b Yu. P. |c physicist |c Professor of Tomsk Polytechnic University, Doctor of physical and mathematical sciences |f 1950- |g Yury Petrovich |3 (RuTPU)RU\TPU\pers\32228 |9 16228 | |
| 701 | 1 | |a Saprykina |b N. A. |c expert in the field of mechanical engineering |c Associate Professor of Yurga technological Institute of Tomsk Polytechnic University, Candidate of technical sciences |f 1977- |g Natalia Anatolyevna |3 (RuTPU)RU\TPU\pers\33652 |9 17296 | |
| 701 | 1 | |a Khimich |b M. A. |g Margarita Andreevna | |
| 701 | 1 | |a Ibragimov |b E. A. |c specialist in the field of mechanical engineering |c Senior Lecturer of Yurga technological Institute of Tomsk Polytechnic University, Candidate of Technical Sciences |f 1983- |g Egor Arturovich |9 17904 | |
| 712 | 0 | 2 | |a Национальный исследовательский Томский политехнический университет |b Юргинский технологический институт |c (2009- ) |3 (RuTPU)RU\TPU\col\15903 |
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| 856 | 4 | |u https://doi.org/10.4028/www.scientific.net/SSP.313.50 | |
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