Effect of Multi-Variant Thermal Treatment on Microstructure Evolution and Mechanical Properties of AlSi10Mg Processed by Direct Metal Laser Sintering and Casting
This article presents a study on the influence of temperature and time of multi-variant heat treatment on the structure and properties of materials produced in direct metal laser sintering (DMLS) and casting technology. The materials were manufactured in the form of cuboidal elements with a cross-se...
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MDPI AG
2022-01-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/15/3/974 |
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| author | Krzysztof Żaba Lechosław Tuz Piotr Noga Stanislav Rusz Rostislav Zabystrzan |
| author_facet | Krzysztof Żaba Lechosław Tuz Piotr Noga Stanislav Rusz Rostislav Zabystrzan |
| author_sort | Krzysztof Żaba |
| collection | DOAJ |
| description | This article presents a study on the influence of temperature and time of multi-variant heat treatment on the structure and properties of materials produced in direct metal laser sintering (DMLS) and casting technology. The materials were manufactured in the form of cuboidal elements with a cross-section of 1.5 mm × 15 mm and a length of 60 mm. The samples prepared in this way had a similar volume, but due to the production technology the metal crystallization took place at different rates and directions. In the cast, the direction of heat transfer was toward the mold, and the DMLS was directed locally layer by layer. The small thickness of the cast material allowed reaching conditions similar to the DMLS cooling process. Both DMLS and cast samples show similar mechanical properties (hardness) achieved after long ageing time, i.e., 16 h at 170 °C. The maximum hardness was observed for 8 h. In the DMLS samples, in contrast to cast samples, no lamellar precipitates of silicon were observed, which indicates their better resistance to cracking |
| first_indexed | 2024-03-09T23:36:35Z |
| format | Article |
| id | doaj.art-f42429811e874ab3a4a2c64fa4226697 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T23:36:35Z |
| publishDate | 2022-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-f42429811e874ab3a4a2c64fa42266972023-11-23T17:00:13ZengMDPI AGMaterials1996-19442022-01-0115397410.3390/ma15030974Effect of Multi-Variant Thermal Treatment on Microstructure Evolution and Mechanical Properties of AlSi10Mg Processed by Direct Metal Laser Sintering and CastingKrzysztof Żaba0Lechosław Tuz1Piotr Noga2Stanislav Rusz3Rostislav Zabystrzan4Department of Metal Working and Physical Metallurgy of Non-Ferrous Metals, Faculty of Non-Ferrous Metals, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Kraków, PolandDepartment of Physical & Powder Metallurgy, Faculty of Metal Engineering and Industrial Computer Science, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Kraków, PolandDepartment of Materials Science and Engineering of Non-Ferrous Metals, Faculty of Non-Ferrous Metals, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Kraków, PolandDepartment of Mechanical Technology, Faculty of Mechanical Engineering, VŠB—Technical University of Ostrava, 17 Listopadu 15, 708-33 Ostrava-Poruba, Czech RepublicSteelTec CZ, s. r. o., Ul. Prumyslova 700, 739-55 Trinec, Czech RepublicThis article presents a study on the influence of temperature and time of multi-variant heat treatment on the structure and properties of materials produced in direct metal laser sintering (DMLS) and casting technology. The materials were manufactured in the form of cuboidal elements with a cross-section of 1.5 mm × 15 mm and a length of 60 mm. The samples prepared in this way had a similar volume, but due to the production technology the metal crystallization took place at different rates and directions. In the cast, the direction of heat transfer was toward the mold, and the DMLS was directed locally layer by layer. The small thickness of the cast material allowed reaching conditions similar to the DMLS cooling process. Both DMLS and cast samples show similar mechanical properties (hardness) achieved after long ageing time, i.e., 16 h at 170 °C. The maximum hardness was observed for 8 h. In the DMLS samples, in contrast to cast samples, no lamellar precipitates of silicon were observed, which indicates their better resistance to crackinghttps://www.mdpi.com/1996-1944/15/3/974AlSi10Mg alloysdirect metal laser sinteringcastingheat treatmentmicrostructuremechanical properties |
| spellingShingle | Krzysztof Żaba Lechosław Tuz Piotr Noga Stanislav Rusz Rostislav Zabystrzan Effect of Multi-Variant Thermal Treatment on Microstructure Evolution and Mechanical Properties of AlSi10Mg Processed by Direct Metal Laser Sintering and Casting Materials AlSi10Mg alloys direct metal laser sintering casting heat treatment microstructure mechanical properties |
| title | Effect of Multi-Variant Thermal Treatment on Microstructure Evolution and Mechanical Properties of AlSi10Mg Processed by Direct Metal Laser Sintering and Casting |
| title_full | Effect of Multi-Variant Thermal Treatment on Microstructure Evolution and Mechanical Properties of AlSi10Mg Processed by Direct Metal Laser Sintering and Casting |
| title_fullStr | Effect of Multi-Variant Thermal Treatment on Microstructure Evolution and Mechanical Properties of AlSi10Mg Processed by Direct Metal Laser Sintering and Casting |
| title_full_unstemmed | Effect of Multi-Variant Thermal Treatment on Microstructure Evolution and Mechanical Properties of AlSi10Mg Processed by Direct Metal Laser Sintering and Casting |
| title_short | Effect of Multi-Variant Thermal Treatment on Microstructure Evolution and Mechanical Properties of AlSi10Mg Processed by Direct Metal Laser Sintering and Casting |
| title_sort | effect of multi variant thermal treatment on microstructure evolution and mechanical properties of alsi10mg processed by direct metal laser sintering and casting |
| topic | AlSi10Mg alloys direct metal laser sintering casting heat treatment microstructure mechanical properties |
| url | https://www.mdpi.com/1996-1944/15/3/974 |
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