Obtaining and characterisation of high entropy alloys used for medical applications

International Conference on Innovative Research - ICIR EUROINVENT 2019

Geant, V.^1 ; Voiculescu, I.^1 ; Stefnoiu, R.^1 ; Codescu, M.^2 ; Kelemen, H.^3 ; Pavel, G.^4 ; Vldescu, A.^5 ; Sandu, V.A.^6

Politehnica University of Bucharest, 313 Splaiul Independenei, Bucharest

060042, Romania^1

National Institute for RandD in Electrial Engineering, ICPE-CA, 313 Splaiul Unirii, District 3, Bucharest

030138, Romania^2

University of Medicine, Pharmacy, Science and Technology of Targu Mures, Gheorghe Marinescu 38, Tirgu Mures

540139, Romania^3

University of Agricultural Sciences and Veterinary Medicine, Iai, 3 Mihail Sadoveanu Alley, Iai

700490, Romania^4

National Institute for Research and Development in Optoelectronics, INOE 2000, 409 Atomitilor street, Mgurele

077125, Romania^5

Gheorghe Asachi Technical University of Iasi, 67 Dimitrie Mangeron Blvd., Iasi

700050, Romania^6

关键词: Alloying systems;    Medical device manufacturing;    Microhardness tests;    Microstructural analysis;    Vacuum arc remelting;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/572/1/012023/pdf
DOI  :  10.1088/1757-899X/572/1/012023

来源: IOP

【 摘 要 】

The experimental CrFeMoNbTaTiZr alloys were designed based on the extremely low bio-toxicity of the chemical elements. They are currently used as a basis for alloying of classical alloys used in medical device manufacturing. From this alloying system, were obtained in a Vacuum Arc Remelting (VAR) equipment six alloys: CrFeMoNbTaTi, CrFeMoNbTaZr, CrFeMoTaTiZr, CrFeTaNbTiZr, CrTaNbTiZrMo and FeTaNbTiZrMo. The microstructural analysis of the obtained alloys have been performed by optical and SEM microscopy. The microhardness tests show results in the range of 575-1337 HV0.2/10. In order to improve the mechanical properties heat treatment procedures have been applied.