Study of the Pore Formation on CoCrMo Alloys by Selective Laser Melting Manufacturing Process
By K. Monroy, Jordi Delgado, Joaquim Ciurana. 2013
139 citations recorded by the source corpus.
Abstract Cobalt-base alloys are widely used in medical applications as is the hardest known biocompatible alloy along with a high wear and/or corrosion resistance. The manufacturing process used on these alloys strongly influences the features produced, therefore it should be carefully controlled to attain the desired quality. Selective laser melting (SLM) is a novel process proposed for the fabrication of biomedical implants with cobalt alloys. In this technique, density is the most important concern as it has a direct influence on the component performance. Due to its different energy inputs given by its processing parameters, it has the potential to control porosity through them. In this work, SLM experiments were carried out on a CoCrMo alloy to study the formation of pores. The analysis showed that the SLM technique enables the building of high dense samples up to 99%, resulting in a mean of porosity of 5.77% and a pore mean size of 0.759 μm2.
Subfields: Automotive Engineering, Mechanical Engineering
View Paper: https://www.semanticscholar.org/paper/804c4f64a73799f6c67a66cd13daa7d3d561d743
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In Automotive Engineering
In Mechanical Engineering
- Kondagokuldoss Prashanth
- S. Scudino
- K. Davidson
- S. Singamneni
- J. Das
- J. Eckert
- Lai‐Chang Zhang
- A. Forster
Citations in the corpus
- Selective Laser Melting of Duplex Stainless Steel Powders: An Investigation (2016, background): “[55] attribute this pore formation to both the powder deposition process and the processing environment.”
- Is the energy density a reliable parameter for materials synthesis by selective laser melting? (2017, background): “The pores observed in the Al-12Si samples are not spherical in shape, ruling out that they are ‘metallurgical’ pores caused by entrapment of gas (hydrogen) in themelt [23].”