About this Abstract |
Meeting |
2nd World Congress on High Entropy Alloys (HEA 2021)
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Symposium
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2nd World Congress on High Entropy Alloys (HEA 2021)
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Presentation Title |
Boron Addition in a Non-equiatomic Fe50Mn30Co10Cr10 Alloy Manufactured by Laser Cladding: Microstructure and Wear Abrasive Resistance |
Author(s) |
Jose Yesid Aguilar Hurtado, Alejandro Vargas-Uscategui, Katherine Paredes-Gil, Maria Jose Tobar, Jose Manuel Amado |
On-Site Speaker (Planned) |
Jose Yesid Aguilar Hurtado |
Abstract Scope |
Fe50Mn30Co10Cr10 High-Entropy Alloy was prepared by laser cladding on a stainless steel 316L. The effects of boron addition on the microstructure, hardness and abrasive wear-resistance were investigated. The coatings were exposed to abrasive wear conditions using the dry sand/rubber wheel test. The microstructure of the laser claddings exhibited columnar dendrites formed by a dual phase (FCC+HCP) with the same chemical composition. The HCP structure was the result of the partial martensitic transformation of the FCC structure. Boron addition led to the segregation of a eutectic phase into interdendritic regions containing lath M2B borides. When boron content was increased from 0 at% to 5.40 at% the microhardness of the material was from 291 HV to 445 HV. Similarly, the boron content improved the behavior against abrasive wear by more than 30% when is compared with the alloy without boron content due to the increased volume fraction of borides in the microstructure. |
Proceedings Inclusion? |
Undecided |