Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Effect of Controlled Heat Treatment and Aluminum Additions on the Strengthening of Cu-Ni Based Alloys for Dental Applications

Version 1 : Received: 22 May 2023 / Approved: 23 May 2023 / Online: 23 May 2023 (07:52:55 CEST)

How to cite: Rosales-Cadena, I.; Gonzalez-Rodriguez, J.G.; Diaz-Reyes, C.; Guardian-Tapia, R.; Ruiz-Ochoa, J.A.; Ramirez-Arteaga, A.M.; Lopez-Sesenes, R. Effect of Controlled Heat Treatment and Aluminum Additions on the Strengthening of Cu-Ni Based Alloys for Dental Applications. Preprints 2023, 2023051606. https://doi.org/10.20944/preprints202305.1606.v1 Rosales-Cadena, I.; Gonzalez-Rodriguez, J.G.; Diaz-Reyes, C.; Guardian-Tapia, R.; Ruiz-Ochoa, J.A.; Ramirez-Arteaga, A.M.; Lopez-Sesenes, R. Effect of Controlled Heat Treatment and Aluminum Additions on the Strengthening of Cu-Ni Based Alloys for Dental Applications. Preprints 2023, 2023051606. https://doi.org/10.20944/preprints202305.1606.v1

Abstract

In this investigation, Cu-Ni alloys for possible fixed dental prostheses (FDPs), with different aluminum additions were produced using vacuum atmosphere. Annealed alloys (He atmosphere) with low aluminum concentration showed a coarse dendritic structure, while samples with high aluminum concentration showed a refined dendritic structure. Structural defects analyses have shown a relative low vacancy concentrations. Hardness value increases approximately five times for the alloyed samples compared with the as-cast and unalloyed samples. Compression test results have shown a noticeable strengthening improvement, mainly in samples heat treated with 10 at % Al, while samples with 5 at % Al presented also acceptable resistance. Results are discussed in terms of dislocation mobility and hardening precipitation mechanism.

Keywords

Copper Nickel alloys; Hardness; Mechanical Properties; Heat Treatment

Subject

Engineering, Bioengineering

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