| Issue |
MATEC Web Conf.
Volume 406, 2024
2024 RAPDASA-RobMech-PRASA-AMI Conference: Unlocking Advanced Manufacturing - The 25th Annual International RAPDASA Conference, joined by RobMech, PRASA and AMI, hosted by Stellenbosch University and Nelson Mandela University
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|---|---|---|
| Article Number | 07002 | |
| Number of page(s) | 9 | |
| Section | AM Material and Part Characterisation | |
| DOI | https://doi.org/10.1051/matecconf/202440607002 | |
| Published online | 09 December 2024 | |
Thermal aging of additively manufactured maraging steel
1 Defence and Security, Council for Scientific Industrial Research, South Africa
2 Future Production: Manufacturing, Council for Scientific Industrial Research, South Africa
3 School of Mechanical, Industrial and Aeronautical Engineering, University of the Witwatersrand, South Africa
* Corresponding author: 2103735@students.wits.ac.za
The mechanical properties of Additively Manufactured M300 Maraging Steel were tested after two thermal treatments. It was found that the stress-relief process resulted in tensile strength comparable to the powder specification, but low ductility compared to the specifications, whilst the addition of an aging process resulted in substandard tensile strength and extreme brittleness. The results of a hardness test and the tensile properties achieved suggest that the material was embrittled by both thermal processes. The samples were inspected using an Optical Microscope (OM) after testing.
© The Authors, published by EDP Sciences, 2024
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