Changes of phase composition of maraging steel 1.2709 during selective laser melting
| Autor: | Miroslav Mashlan, Fredericus Linderhof, Magdalena Davidova, E. G. Zemtsova, Hana Kubickova |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Austenite
Nuclear and High Energy Physics Materials science 010308 nuclear & particles physics Scanning electron microscope Alloy Energy-dispersive X-ray spectroscopy engineering.material Condensed Matter Physics 01 natural sciences Atomic and Molecular Physics and Optics Martensite Phase (matter) 0103 physical sciences engineering Physical and Theoretical Chemistry Composite material Selective laser melting 010306 general physics Maraging steel |
| Zdroj: | Hyperfine Interactions. 241 |
| ISSN: | 1572-9540 0304-3843 |
| Popis: | Selective laser melting (SLM) as an additive manufacturing technology enables the quick production of complex shaped three-dimensional (3D) specimens directly from a metal powder. Various metal powders, including different steels, are used in this technology. The influence of the SLM process on the phase composition of the final 3D specimen has been examined by Mossbauer spectroscopy (MS) The surface quality has been examined by scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS). The maraging steel 1.2709 (CL50WS), an iron-nickel steel alloy, which is often used in applications where high fracture toughness and strength are required has been investigated. The difference between the phase composition of the initial CL50WS powder and the final specimen identified via MS demonstrated transformation of a martensitic phase into an austenitic one. This transformation proceeds during the whole SLM process. SEM presented imperfections of the surface of the final specimen. The spherical and irregular pores were observed as well as the particles of initial powder bonded to face. Inhomogeneity of elements on the face has been observed by EDS. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink