Microstructural and Tensile Properties Anisotropy of Selective Laser Melting Manufactured IN 625
The present study was focused on the assessment of microstructural anisotropy of IN 625 manufactured by selective laser melting (SLM) and its influence on the material’s room temperature tensile properties. Microstructural anisotropy was assessed based on computational and experimental investigation...
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| Veröffentlicht in: | Materials 2020-10, Vol.13 (21), p.4829 |
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| creator | Condruz, Mihaela Raluca Matache, Gheorghe Paraschiv, Alexandru Frigioescu, Tiberius Florian Badea, Teodor |
| description | The present study was focused on the assessment of microstructural anisotropy of IN 625 manufactured by selective laser melting (SLM) and its influence on the material’s room temperature tensile properties. Microstructural anisotropy was assessed based on computational and experimental investigations. Tensile specimens were manufactured using four building orientations (along Z, X, Y-axis, and tilted at 45° in the XZ plane) and three different scanning strategies (90°, 67°, and 45°). The simulation of microstructure development in specimens built along the Z-axis, applying all three scanning strategies, showed that the as-built microstructure is strongly textured and is influenced by the scanning strategy. The 45° scanning strategy induced the highest microstructural texture from all scanning strategies used. The monotonic tensile test results highlighted that the material exhibits significant anisotropic properties, depending on both the specimen orientation and the scanning strategy. Regardless of the scanning strategy used, the lowest mechanical performances of IN 625, in terms of strength values, were recorded for specimens built in the vertical position, as compared with all the other orientations. |
| doi_str_mv | 10.3390/ma13214829 |
| format | Article |
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Microstructural anisotropy was assessed based on computational and experimental investigations. Tensile specimens were manufactured using four building orientations (along Z, X, Y-axis, and tilted at 45° in the XZ plane) and three different scanning strategies (90°, 67°, and 45°). The simulation of microstructure development in specimens built along the Z-axis, applying all three scanning strategies, showed that the as-built microstructure is strongly textured and is influenced by the scanning strategy. The 45° scanning strategy induced the highest microstructural texture from all scanning strategies used. The monotonic tensile test results highlighted that the material exhibits significant anisotropic properties, depending on both the specimen orientation and the scanning strategy. Regardless of the scanning strategy used, the lowest mechanical performances of IN 625, in terms of strength values, were recorded for specimens built in the vertical position, as compared with all the other orientations.</description><identifier>ISSN: 1996-1944</identifier><identifier>EISSN: 1996-1944</identifier><identifier>DOI: 10.3390/ma13214829</identifier><identifier>PMID: 33126747</identifier><language>eng</language><publisher>Basel: MDPI AG</publisher><subject>Additive manufacturing ; Advanced manufacturing technologies ; Alloys ; Anisotropy ; Cooling ; Discount coupons ; Heat treating ; Laser beam melting ; Lasers ; Mechanical properties ; Microscopy ; Microstructure ; Morphology ; Raw materials ; Room temperature ; Scanning ; Simulation ; Tensile properties ; Tensile tests ; Vertical orientation ; Yield stress</subject><ispartof>Materials, 2020-10, Vol.13 (21), p.4829</ispartof><rights>2020 by the authors. Licensee MDPI, Basel, Switzerland. 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Microstructural anisotropy was assessed based on computational and experimental investigations. Tensile specimens were manufactured using four building orientations (along Z, X, Y-axis, and tilted at 45° in the XZ plane) and three different scanning strategies (90°, 67°, and 45°). The simulation of microstructure development in specimens built along the Z-axis, applying all three scanning strategies, showed that the as-built microstructure is strongly textured and is influenced by the scanning strategy. The 45° scanning strategy induced the highest microstructural texture from all scanning strategies used. The monotonic tensile test results highlighted that the material exhibits significant anisotropic properties, depending on both the specimen orientation and the scanning strategy. 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| subjects | Additive manufacturing Advanced manufacturing technologies Alloys Anisotropy Cooling Discount coupons Heat treating Laser beam melting Lasers Mechanical properties Microscopy Microstructure Morphology Raw materials Room temperature Scanning Simulation Tensile properties Tensile tests Vertical orientation Yield stress |
| title | Microstructural and Tensile Properties Anisotropy of Selective Laser Melting Manufactured IN 625 |
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