Fracture behavior of novel biomedical Ti-based high entropy alloys under impact loading

Gurel, Sibel; Yağcı, M. Barış; Canadinç, D.; Gerstein, Gregory; Bal, Burak; Maier, Hans Jürgen

doi:10.1016/j.msea.2020.140456

Cited by 28 publications

(17 citation statements)

References 75 publications

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“…In the majority of cases, multicomponent alloys are synthesized by crystallization from the melt (arc or induction melting in vacuum or argon [5][6][7][13][14][15][16][17][18][28][29][30][31][32][33][34][35][36][37][38][39][40][41][42][43], plasma spark sintering [19], electric current assisted sintering [20,21], laser or plasma cladding deposition of coatings [44][45][46][47][48][49][50][51][52][53][54][55], additive manufacturing by the laser-powder bed fusion [56,57] or laser-metal deposition [58], self-propagating high-temperature synthesis (SHS) [59], and by brazing within the brazing joints [60,61]). Figure 1 shows a schematic phase diagram for the simplest case when there are on...…”

Section: Grain Boundary Wetting By the Liquid Phasementioning

confidence: 99%

The Grain Boundary Wetting Phenomena in the Ti-Containing High-Entropy Alloys: A Review

Straumal

Korneva

Kuzmin

et al. 2021

Metals

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In this review, the phenomenon of grain boundary (GB) wetting by melt is analyzed for multicomponent alloys without principal components (also called high-entropy alloys or HEAs) containing titanium. GB wetting can be complete or partial. In the former case, the liquid phase forms the continuous layers between solid grains and completely separates them. In the latter case of partial GB wetting, the melt forms the chain of droplets in GBs, with certain non-zero contact angles. The GB wetting phenomenon can be observed in HEAs produced by all solidification-based technologies. GB leads to the appearance of novel GB tie lines Twmin and Twmax in the multicomponent HEA phase diagrams. The so-called grain-boundary engineering of HEAs permits the use of GB wetting to improve the HEAs’ properties or, alternatively, its exclusion if the GB layers of a second phase are detrimental.

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Section: Grain Boundary Wetting By the Liquid Phasementioning

confidence: 99%

The Grain Boundary Wetting Phenomena in the Ti-Containing High-Entropy Alloys: A Review

Straumal

Korneva

Kuzmin

et al. 2021

Metals

View full text Add to dashboard Cite

show abstract

“…In the majority of cases, HEAs are manufactured by crystallization from the melt after arc or induction melting [5][6][7][8][9][10][11][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34], electric current assisted sintering [35,36], plasma spark sintering [37], additive manufacturing by the laser powder bed fusion [38,39] or laser metal deposition [40], laser or plasma cladding deposition of coatings [41][42][43][44][45][46][47][48][49][50][51][52], selfpropagating high-temperature synthesis (SHS) [53], or even by brazing of dissimilar materials within the brazing joints [54,55]). In some cases, the liquid phase is not present during the synthesis of HEAs such as in the case of sputter deposition of coatings…”

Section: Grain Boundary Wetting By the Second Solid Phasementioning

confidence: 99%

Grain Boundary Wetting by a Second Solid Phase in the High Entropy Alloys: A Review

et al. 2021

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In this review, the phenomenon of grain boundary (GB) wetting by the second solid phase is analyzed for the high entropy alloys (HEAs). Similar to the GB wetting by the liquid phase, the GB wetting by the second solid phase can be incomplete (partial) or complete. In the former case, the second solid phase forms in the GB of a matrix, the chain of (usually lenticular) precipitates with a certain non-zero contact angle. In the latter case, it forms in the GB continuous layers between matrix grains which completely separate the matrix crystallites. The GB wetting by the second solid phase can be observed in HEAs produced by all solidification-based technologies. The particle chains or continuous layers of a second solid phase form in GBs also without the mediation of a liquid phase, for example by solid-phase sintering or coatings deposition. To describe the GB wetting by the second solid phase, the new GB tie-lines should be considered in the two- or multiphase areas in the multicomponent phase diagrams for HEAs. The GB wetting by the second solid phase can be used to improve the properties of HEAs by applying the so-called grain boundary engineering methods.

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“…Gurel et al [36] explored the TiTaHfNb, TiTaHfNbZr, and TiTaHfMoZr systems in terms of mechanical properties and fracture behavior under impact loading (Charpy Vnotch test). All three BCC-structured alloys show a relatively lower Young's modulus when compared to more conventional implants.…”

Section: Comparison Of Mechanical Properties For Bone Implantsmentioning

confidence: 99%

An Overview of High-Entropy Alloys as Biomaterials

Castro

Rocha

Baptista

et al. 2021

Metals

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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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Fracture behavior of novel biomedical Ti-based high entropy alloys under impact loading

Cited by 28 publications

References 75 publications

The Grain Boundary Wetting Phenomena in the Ti-Containing High-Entropy Alloys: A Review

The Grain Boundary Wetting Phenomena in the Ti-Containing High-Entropy Alloys: A Review

Grain Boundary Wetting by a Second Solid Phase in the High Entropy Alloys: A Review

An Overview of High-Entropy Alloys as Biomaterials

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