An Overview of High-Entropy Alloys as Biomaterials

High-entropy alloys (HEAs) have been around since 2004. The breakthroughs in this field led to several potential applications of these alloys as refractory, structural, functional, and biomedical materials. In this work, a short overview on the concept of high-entropy alloys is provided, as well as the theoretical design approach. The special focus of this review concerns one novel class of these alloys: biomedical high-entropy alloys. Here, a literature review on the potential high-entropy alloys for biomedical applications is presented. The characteristics that are required for these alloys to be used in biomedical-oriented applications, namely their mechanical and biocompatibility properties, are discussed and compared to commercially available Ti6Al4V. Different processing routes are also discussed.

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New High Entropy Alloy for Biomedical Applications

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.750.180 ◽

2017 ◽

Vol 750 ◽

pp. 180-183 ◽

Cited By ~ 1

Author(s):

Brandusa Ghiban ◽

Gabriela Popescu ◽

Daniela Dumitrescu ◽

Vasile Soare

Keyword(s):

Biomedical Applications ◽

High Entropy Alloy ◽

High Entropy Alloys ◽

Metallic Materials ◽

Corrosion Properties ◽

High Entropy ◽

New Class ◽

Potential Applications ◽

High Degree ◽

Oxidation And Corrosion

High Entropy Alloys (HEAs) represent a new concept of metallic materials, that contain 5 or more elements, in proportions from 5 at.% to 35 at.%, and form simple solid solutions (BCC and/or FCC) instead of complicated intermetallic phases. The high degree of randomness atomic HEA, gives them excellent properties: electrical, mechanical, electrochemical, ductility, anti-corrosion properties, stable structure etc, with applications in peak thus representing a growing research. These specific features provides HEA with excellent hardness, strength and wear strength, malleability, oxidation and corrosion resistance, with potential applications in diverse industrial areas [1÷4]. Considering these properties we decide to improve biomedical alloys with this new class of HEAs.

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Design and properties of novel Ti–Zr–Hf–Nb–Ta high-entropy alloys for biomedical applications

Intermetallics ◽

10.1016/j.intermet.2021.107421 ◽

2022 ◽

Vol 141 ◽

pp. 107421

Author(s):

Wei Yang ◽

Shujie Pang ◽

Ying Liu ◽

Qing Wang ◽

Peter K. Liaw ◽

...

Keyword(s):

Biomedical Applications ◽

High Entropy Alloys ◽

High Entropy

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Mechanical and Magnetic Properties of the High-Entropy Alloys for Combinatorial Approaches

Crystals ◽

10.3390/cryst10030200 ◽

2020 ◽

Vol 10 (3) ◽

pp. 200 ◽

Cited By ~ 4

Author(s):

E-Wen Huang ◽

Guo-Yu Hung ◽

Soo Yeol Lee ◽

Jayant Jain ◽

Kuan-Pang Chang ◽

...

Keyword(s):

Magnetic Properties ◽

Thermal Spray Coatings ◽

High Entropy Alloy ◽

High Entropy Alloys ◽

High Entropy ◽

Spray Coatings ◽

Wear And Corrosion ◽

Potential Applications ◽

Magnetic Applications ◽

Alloy Properties

This review summarizes the state of high-entropy alloys and their combinatorial approaches, mainly considering their magnetic applications. Several earlier studies on high-entropy alloy properties, such as magnetic, wear, and corrosion behavior; different forms, such as thin films, nanowires, thermal spray coatings; specific treatments, such as plasma spraying and inclusion effects; and unique applications, such as welding, are summarized. High-entropy alloy systems that were reported for both their mechanical and magnetic properties are compared through the combination of their Young’s modulus, yield strength, remanent induction, and coercive force. Several potential applications requiring both mechanical and magnetic properties are reported.

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Microstructural, mechanical and electrochemical characterization of TiZrTaHfNb and Ti1.5ZrTa0.5Hf0.5Nb0.5 refractory high-entropy alloys for biomedical applications

Intermetallics ◽

10.1016/j.intermet.2019.106572 ◽

2019 ◽

Vol 113 ◽

pp. 106572 ◽

Cited By ~ 17

Author(s):

Amir Motallebzadeh ◽

Naeimeh Sadat Peighambardoust ◽

Saad Sheikh ◽

Hideyuki Murakami ◽

Sheng Guo ◽

...

Keyword(s):

Biomedical Applications ◽

Electrochemical Characterization ◽

High Entropy Alloys ◽

High Entropy

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Tailoring biocompatible Ti-Zr-Nb-Hf-Si metallic glasses based on high-entropy alloys design approach

Materials Science and Engineering C ◽

10.1016/j.msec.2020.111733 ◽

2020 ◽

pp. 111733

Author(s):

Mariana Calin ◽

Jithin Vishnu ◽

Pramote Thirathipviwat ◽

Monica-Mihaela Popa ◽

Maria Krautz ◽

...

Keyword(s):

Metallic Glasses ◽

Design Approach ◽

High Entropy Alloys ◽

High Entropy

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Self-Assembly Technique for Biomedical Applications

Nano LIFE ◽

10.1142/s1793984415420027 ◽

2015 ◽

Vol 05 (02) ◽

pp. 1542002 ◽

Cited By ~ 5

Author(s):

Xiao Gong

Keyword(s):

Drug Delivery ◽

Self Assembly ◽

Biomedical Applications ◽

Recent Progress ◽

Layer By Layer ◽

Biomedical Materials ◽

Biomedical Material ◽

Potential Applications ◽

Assembly Technique

Layer-by-layer (LbL) self-assembly has attracted extensive attention for its simplicity and versatility. Self-assembly has many potential applications, among which biomedical applications is especially important because it can be used as a means of generating drug delivery and biomedical materials. Based on this, most recent progress in the field of self-assembly technique for drug delivery and biomedical material applications are summarized in this mini review. The remaining challenges are also mentioned.

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Interaction between Filler and Polymeric Matrix in Nanocomposites: Magnetic Approach and Applications

Polymers ◽

10.3390/polym13172998 ◽

2021 ◽

Vol 13 (17) ◽

pp. 2998 ◽

Cited By ~ 1

Author(s):

Moises Bustamante-Torres ◽

David Romero-Fierro ◽

Belén Arcentales-Vera ◽

Samantha Pardo ◽

Emilio Bucio

Keyword(s):

Biomedical Applications ◽

Polymeric Matrix ◽

Magnetic Nanocomposites ◽

Special Focus ◽

New Materials ◽

Wide Range ◽

Potential Applications ◽

Biomedical Field ◽

Enhanced Properties ◽

Matrix Relationship

In recent years, polymer nanocomposites produced by combining nanofillers and a polymeric matrix are emerging as interesting materials. Polymeric composites have a wide range of applications due to the outstanding and enhanced properties that are obtained thanks to the introduction of nanoparticles. Therefore, understanding the filler-matrix relationship is an important factor in the continued growth of this scientific area and the development of new materials with desired properties and specific applications. Due to their performance in response to a magnetic field magnetic nanocomposites represent an important class of functional nanocomposites. Due to their properties, magnetic nanocomposites have found numerous applications in biomedical applications such as drug delivery, theranostics, etc. This article aims to provide an overview of the filler-polymeric matrix relationship, with a special focus on magnetic nanocomposites and their potential applications in the biomedical field.

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DEVELOPMENT OF RECONFIGURABLE PARALLEL KINEMATIC MACHINES USING MODULAR DESIGN APPROACH

Proceedings of the Canadian Engineering Education Association (CEEA) ◽

10.24908/pceea.v0i0.3866 ◽

2011 ◽

Cited By ~ 1

Author(s):

Dan Zhang ◽

Zhuming Bi

Keyword(s):

Geometric Modeling ◽

Modular Design ◽

General Concept ◽

Design Approach ◽

Kinematic Modeling ◽

Parallel Kinematic Machines ◽

Theoretical Design ◽

Potential Applications ◽

Parallel Kinematic

This paper introduces the theoretical design of reconfigurable machine tools using modular design approach. First, the general concept of modular robot and its growing need is introduced. Second, the design of reconfigurable parallel kinematic machines is discussed and the geometric modeling of such figures is presented and explained, and potential applications are described. Finally, a case study for proposed structure is conducted for its kinematic modeling and design optimization and some results are concluded.

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Sustainable Coatings on Metallic Alloys as a Nowadays Challenge

Sustainability ◽

10.3390/su131810217 ◽

2021 ◽

Vol 13 (18) ◽

pp. 10217

Author(s):

Radu Nartita ◽

Daniela Ionita ◽

Ioana Demetrescu

Keyword(s):

Corrosion Inhibitors ◽

Raw Materials ◽

Metallic Alloys ◽

Advanced Materials ◽

Special Focus ◽

High Entropy Alloys ◽

Future Perspectives ◽

High Entropy ◽

Green Corrosion Inhibitors ◽

Selection Of

Starting with a description of the meaning of sustainable coating nowadays, this review presents a selection of methods for sustainable coatings manufacture using raw materials, saving energy and costs. This selection creates an introduction for the coatings performances of intensively investigated coated alloys and their multifunctionality. There are many examples and EU recommendations to be discussed, and we especially chose to introduce sustainable coatings with both industrial and medical functions, such as bioinspired films and coatings on high-entropy alloys, biodegradable metallic alloys, etc. A special focus is on nanotechnology and nanomaterials in green procedures, enhancing coatings’ multifunctionality, introducing green corrosion inhibitors, smart additives, and coatings based on superhydrophobicity. The conclusions and future perspectives of sustainable and multifunctional coatings, as expressions of sustainable advanced materials, are based on important motivations of such studies.

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