Tuning the glass forming ability and mechanical properties of Ti-based bulk metallic glasses by Ga additions

Bera, Supriya; Ramasamy, Parthiban; Şopu, Daniel; Sarac, Baran; Zálešák, Jakub; Gammer, Christoph; Stoica, M.; Calin, Mariana; Eckert, J.

doi:10.1016/j.jallcom.2019.04.173

Cited by 23 publications

(19 citation statements)

References 54 publications

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“…Moreover, a slight decrease in the broad peak angle and shoulder position is detected with the increase in Cr content; however, the shoulder angle again increases at the 4% Cr content. Using Bragg law and following equations, it is possible to QUALITAVELY evaluate the structure of glassy alloys [20]. Bragg law equation is established for peak intensities in crystalline materials as follow:…”

Section: Resultsmentioning

confidence: 99%

“…As an illustrated, Zai et al [19] added Ga element into the MgZnCa system and found that the 1 at.% Ga microalloying led to the significant improvement of casting critical diameter and fracture strength. Bera et al [20] revealed that Ga element also enhanced the plasticity properties of TiZrCuPd amorphous system by inducing local structural heterogeneity in the atomic configuration of BMG. In another study, it is reported that the Ni microalloying provide significant constraint on the crystallization initiation of a Cu-based BMG [21].…”

Section: Introductionmentioning

confidence: 99%

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RETRACTED ARTICLE: Effects of Cr Microalloying on Structural Evolution, Crystallization Behavior and Micromechanical Properties of ZrCoAlCr Bulk Metallic Glass

Supriyono

Aravindhan

Thangavelu

et al. 2021

Trans Indian Inst Met

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This paper deals with the role of minor addition of Cr on the atomic rearrangement and crystallization evolution in a Zr-based bulk metallic glass. For this purpose, Cr elements with 1-4% atomic percentage were added into the alloying composition. The X-ray diffraction results indicated that the trace element led to the increase in disordered structures in the glassy alloy and the decline in population of short and medium scale orders. This event was due to the intensification of structural heterogeneity which was manifested in the change of enthalpy relaxation. The differential scanning calorimetry analysis also showed that all ZrCoAlCr BMG samples included two distinct crystallization peaks during the heating process. However, the increase in Cr content led to the intensification of low temperature peak. This result was consistent with viscosity analysis, in which the viscosity decrement was intensified at the range of low temperature crystallization peak with the rise in Cr content. Moreover, it was found that although the plasticity improved in samples with Cr-content, the strength showed a slight decrease.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

RETRACTED ARTICLE: Effects of Cr Microalloying on Structural Evolution, Crystallization Behavior and Micromechanical Properties of ZrCoAlCr Bulk Metallic Glass

Supriyono

Aravindhan

Thangavelu

et al. 2021

Trans Indian Inst Met

View full text Add to dashboard Cite

show abstract

“…Bulk metallic glasses (BMGs) are relative newcomers in materials science, showing unique behavior due to the absence of crystallinity and the associated lack of microstructural features such as grain and phase boundaries [ 1 , [12] , [13] , [14] ]. Among advanced glassy multicomponent systems, Ti-based BMGs are exploited as biomedical materials mainly owing to low Young's modulus, high processability, good biocompatibility, and bioactivity of the Ti element [ [15] , [16] , [17] , [18] , [19] ]. Besides, they have a higher oxidation resistance, corrosion passivity, and lower corrosion current density than conventionally used Ti– 6Al–4V alloys, indicating a better corrosion resistance [ 20 ].…”

Section: Introductionmentioning

confidence: 99%

Antibacterial activity, cytocompatibility, and thermomechanical stability of Ti40Zr10Cu36Pd14 bulk metallic glass

Rezvan¹,

Sharifikolouei²,

Lassnig³

et al. 2022

Materials Today Bio

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“…[25] Furthermore, studies on metallic glass coatings reported low cytotoxicity upon exposure to C2C12 myoblasts, [26] L929 fibroblast cells, [27][28][29] MC3T3-E1 cells, [30] human mesenchymal stem cells (hMSC), [31] and murine (MC3T3-E1) and human osteoblastlike cells (SaOS-2), [32] as well as hydroxyapatite formation [33] and ensuring the minimal adhesion of cancer cells. [34] However, in all these studies, the Cu, Ni or Al used to improve the glass-forming ability (GFA) have the risk of being released as ions from metal implant particles into the body tissue, [35][36][37] which could even kill sensitive cells in other parts of the body. Furthermore, studies have shown that a large fraction of Cu in the alloy (≥30 at%) can initiate pronounced pitting events and hence must be avoided.…”

Section: Introductionmentioning

confidence: 99%

Magnetron Sputtered Non‐Toxic and Precious Element‐Free TiZrGe Metallic Glass Nanofilms with Enhanced Biocorrosion Resistance

Sarac

Mičušík

Pütz

et al. 2022

Adv Materials Inter

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The chemical composition and structural state of advanced alloys are the decisive factors in optimum biomedical performance. This contribution presents unique Ti-Zr-Ge metallic glass thin-film compositions fabricated by magnetron sputter deposition targeted for nanocoatings for biofouling prevention. The amorphous nanofilms with nanoscale roughness exhibit a large relaxation and supercooled liquid regions as revealed by flash differential scanning calorimetry. Ti68Zr8Ge24 shows the lowest corrosion (0.17 µA cm -2 ) and passivation (1.22 µA cm -2 ) current densities, with the lowest corrosion potential of -0.648 V and long-range stability against pitting, corroborating its excellent performance in phosphate buffer solution at 37 °C. The oxide layer is comprised of TiO2, TiOx and ZrOx, as determined using X-ray photoelectron spectroscopy by short-term ion-etching of the surface layer. The two orders of magnitude increase in the oxide and interface resistance (from 14 to 1257 Ω cm 2 ) along with an order of magnitude decrease in the capacitance parameter of the oxide interface (from 1.402  10 -5 to 1.677  10 -6 S s n cm -2 ) of the same composition is linked to the formation of carbonyl groups and reduction of the native oxide layer during linear sweep voltammetry. 4(21-25 at.%) were produced using magnetron sputter deposition and examined thoroughly using structural, thermal, morphological, compositional and electrochemical methods. Results and Discussion Structural, Thermal, and Optical PropertiesThe amorphous nature of the as-sputtered samples was checked using grazing incidence Xray diffraction (Figure 1a). The broad amorphous diffraction maximum shifts from ~37.8° to ~38.6° as the amount of Ti in the TiNFs increases. Although the second broad hump is barely distinguishable for all the samples (between 65° and 85°), the determination of the peak

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Tuning the glass forming ability and mechanical properties of Ti-based bulk metallic glasses by Ga additions

Cited by 23 publications

References 54 publications

RETRACTED ARTICLE: Effects of Cr Microalloying on Structural Evolution, Crystallization Behavior and Micromechanical Properties of ZrCoAlCr Bulk Metallic Glass

RETRACTED ARTICLE: Effects of Cr Microalloying on Structural Evolution, Crystallization Behavior and Micromechanical Properties of ZrCoAlCr Bulk Metallic Glass

Antibacterial activity, cytocompatibility, and thermomechanical stability of Ti40Zr10Cu36Pd14 bulk metallic glass

Magnetron Sputtered Non‐Toxic and Precious Element‐Free TiZrGe Metallic Glass Nanofilms with Enhanced Biocorrosion Resistance

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