Mechanical Properties of High Entropy Alloy Al 0.1 CoCrFeNi for Peripheral Vascular Stent Application

High entropy alloys (HEAs) are new class of metallic materials with five or more principal alloying elements. Due to this distinct concept of alloying, the HEAs exhibit unique properties compared to conventional alloys. The outstanding properties of HEAs include increased strength, superior wear res...

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Published inCardiovascular engineering and technology Vol. 7; no. 4; p. 448
Main Authors Alagarsamy, Karthik, Fortier, Aleksandra, Komarasamy, Mageshwari, Kumar, Nilesh, Mohammad, Atif, Banerjee, Subhash, Han, Hai-Chao, Mishra, Rajiv S
Format Journal Article
LanguageEnglish
Published United States 01.12.2016
Subjects
Alloys - chemistry
Entropy
Finite Element Analysis
Materials Testing
Metals, Heavy - chemistry
Spectrum Analysis
Stents
High entropy alloys
Superficial femoral artery
Peripheral stenting
Stent implants
Finite element analysis
Fatigue analysis
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Summary:High entropy alloys (HEAs) are new class of metallic materials with five or more principal alloying elements. Due to this distinct concept of alloying, the HEAs exhibit unique properties compared to conventional alloys. The outstanding properties of HEAs include increased strength, superior wear resistance, high temperature stability, increased fatigue properties, good corrosion, and oxidation resistance. Such characteristics of HEAs have generated significant interest among the scientific community. However, their applications are yet to be explored. This paper discusses the mechanical behavior and microstructure of Al CoCrFeNi HEA subjected to thermo-mechanical processing, and its potential application in peripheral vascular stent implants that are prone to high failure rates. Results show that Al CoCrFeNi alloy possesses characteristics that compare well against currently used stent materials and it can potentially find use in peripheral vascular stent implants and extend their life-cycle.
ISSN:1869-4098