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- Title
High Strength X3NiCoMoTi 18-9-5 Maraging Steel Prepared by Selective Laser Melting from Atomized Powder.
- Authors
Strakosova, Angelina; Kubásek, Jiří; Michalcová, Alena; Průša, Filip; Vojtěch, Dalibor; Dvorský, Drahomír
- Abstract
Maraging steels are generally characterized by excellent mechanical properties, which make them ideal for various industrial applications. The application field can be further extended by using selective laser melting (SLM) for additive manufacturing of shape complicated products. However, the final mechanical properties are strongly related to the microstructure conditions. The present work studies the effect of heat treatment on the microstructure and mechanical properties of 3D printed samples prepared from powder of high-strength X3NiCoMoTi 18-9-5 maraging steel. It was found that the as-printed material had quite low mechanical properties. After sufficient heat treatment, the hardness of the material increased from 350 to 620 HV0.1 and the tensile yield strength increased from 1000 MPa up to 2000 MPa. In addition, 3% ductility was maintained. This behavior was primarily affected by strong precipitation during processing.
- Subjects
MARAGING steel; MECHANICAL heat treatment; EFFECT of heat treatment on microstructure; METAL powders; HEAT treatment; POWDERS; TITANIUM powder
- Publication
Materials (1996-1944), 2019, Vol 12, Issue 24, p4174
- ISSN
1996-1944
- Publication type
Article
- DOI
10.3390/ma12244174