Issue |
E3S Web Conf.
Volume 505, 2024
3rd International Conference on Applied Research and Engineering (ICARAE2023)
|
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Article Number | 01038 | |
Number of page(s) | 13 | |
Section | Materials Science | |
DOI | https://doi.org/10.1051/e3sconf/202450501038 | |
Published online | 25 March 2024 |
Microstructural characteristics, hardness and tribological behavior of additive manufactured CM247LC nickel super alloy
1,2 Department of Mechanical Engineering, Sri Ramakrishna Engineering College, Coimbatore 641022, India
3 Department of Metallurgy, University of Johannesburg, Johannesburg 2028, South Africa
* Corresponding author: pcmohu@yahoo.co.in
Nickel superalloy CM247LC was fabricated by laser powder bed fusion (LPBF) and its microstructure, hardness and tribological properties were investigated. X-ray diffraction analysis showed the presence of γ, γ′ and metastable MC carbides. Microstructure revealed cellular structure with fine MC carbides at cell boundaries. Higher hardness of 408 HV was attributed to grain refinement from rapid solidification and strengthening from MC carbides. Wear testing showed lowest wear rate of 1.46x10-9 mm3/m at 10 N load and predominant wear mechanisms were abrasive and adhesive wear. This study recommends LPBF as a promising method for manufacturing CM247LC superalloy for load bearing and tribological applications.
© The Authors, published by EDP Sciences, 2024
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