Shahriar Afkhami, Vahid Javaheri, Edris Dabiri, Heidi Piili, Timo Björk, Effects of manufacturing parameters, heat treatment, and machining on the physical and mechanical properties of 13Cr10Ni1·7Mo2Al0·4Mn0·4Si steel processed by laser powder bed fusion, Materials Science and Engineering: A, Volume 832, 2022, 142402, ISSN 0921-5093, https://doi.org/10.1016/j.msea.2021.142402
Effects of manufacturing parameters, heat treatment, and machining on the physical and mechanical properties of 13Cr10Ni1·7Mo2Al0·4Mn0·4Si steel processed by laser powder bed fusion
|Author:||Afkhami, Shahriar1; Javaheri, Vahid2; Dabiri, Edris1;|
1Laboratory of Steel Structures, LUT University, Lappeenranta, 53850, Finland
2Materials and Mechanical Engineering, University of Oulu, 90014, Finland
3Laboratory of Laser Materials Processing and Additive Manufacturing, LUT University, Lappeenranta, 53850, Finland
|Online Access:||PDF Full Text (PDF, 12.9 MB)|
|Persistent link:|| http://urn.fi/urn:nbn:fi-fe2021121360213
|Publish Date:|| 2021-12-13
This study investigates the effects of build orientations, heat treatment, and mechanical machining (as processing and post-processing factors) on the microstructure, quasi-static mechanical properties, strain hardening, notch toughness, and residual stress of additive manufactured 13Cr10Ni1·7Mo2Al0·4Mn0·4Si maraging stainless steel, known commercially as CX. The material investigated in this research was processed using the laser powder bed fusion (L-PBF) method as the additive manufacturing process. The results show that stainless steel CX had an anisotropic behavior under quasi-static tensile loads in its as-built condition. However, heat treatment significantly increased the strength of the material and eliminated the anisotropy in the strength levels. In addition, building orientation did not significantly affect the microstructure, hardness, and notch toughness. Further, retained austenite proved to have a role in determining the ductility and strain hardening of CX. Finally, the heat treatment utilized in this study proved to be effective in improving the mechanical properties employing shorter times and lower temperatures compared to the treatments used in other studies from the literature.
Materials science & engineering. A, Structural materials: properties, microstructure and processing
|Type of Publication:||
A1 Journal article – refereed
|Field of Science:||
216 Materials engineering
This study was conducted at LUT University as a part of the project VERKOTA, project code: A76589, funded by the European Regional Development Fund (ERDF).
© 2021 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).