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

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Tuning the glass forming ability and mechanical properties of Ti-based bulk metallic glasses by Ga additions. / Bera, Supriya; Ramasamy, Parthiban; Sopu, Daniel; Sarac, Baran; Zalesak, Jakub; Gammer, Christoph; Stoica, Mihai; Calin, Mariana; Eckert, Jürgen.

in: Journal of alloys and compounds, Jahrgang 793.2019, Nr. 15 July, 15.07.2019, S. 552-563.

Publikationen: Beitrag in FachzeitschriftArtikelForschung(peer-reviewed)

Harvard

Bera, S, Ramasamy, P, Sopu, D, Sarac, B, Zalesak, J, Gammer, C, Stoica, M, Calin, M & Eckert, J 2019, 'Tuning the glass forming ability and mechanical properties of Ti-based bulk metallic glasses by Ga additions', Journal of alloys and compounds, Jg. 793.2019, Nr. 15 July, S. 552-563. https://doi.org/10.1016/j.jallcom.2019.04.173

APA

Bera, S., Ramasamy, P., Sopu, D., Sarac, B., Zalesak, J., Gammer, C., Stoica, M., Calin, M., & Eckert, J. (2019). Tuning the glass forming ability and mechanical properties of Ti-based bulk metallic glasses by Ga additions. Journal of alloys and compounds, 793.2019(15 July), 552-563. https://doi.org/10.1016/j.jallcom.2019.04.173

Author

Bera, Supriya ; Ramasamy, Parthiban ; Sopu, Daniel ; Sarac, Baran ; Zalesak, Jakub ; Gammer, Christoph ; Stoica, Mihai ; Calin, Mariana ; Eckert, Jürgen. / Tuning the glass forming ability and mechanical properties of Ti-based bulk metallic glasses by Ga additions. in: Journal of alloys and compounds. 2019 ; Jahrgang 793.2019, Nr. 15 July. S. 552-563.

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@article{84881535c8764cfe9598b5efa6315f43,
title = "Tuning the glass forming ability and mechanical properties of Ti-based bulk metallic glasses by Ga additions",
abstract = "A new series of Ti 40 Zr 10 Cu 36−x Pd 14 Ga x (x = 2, 4, 8 and 10)alloys with improved plasticity and glass-forming ability (GFA)are produced. The strategy is to create local structural heterogeneity in Ti-based bulk metallic glasses (BMGs)by alloying with a soft element which has high negative enthalpy of mixing with Ti-atoms. The GFA of Ti 40 Zr 10 Cu 36−x Pd 14 Ga x rods increases with increasing Ga content up to 4 at.%, and for more Ga it decreases. Minor addition of Ga (x = 2)is beneficial to improve the strength and ductility of the TiZrCuPd-based BMG due to the formation of local structural heterogeneities which facilitate the formation of a highly organized pattern of multiple shear bands under quasi-static compression. Ti 40 Zr 10 Cu 34 Pd 14 Ga 2 BMG shows the best combination of compressive global strain and maximum compressive strength of ∼4.5% and ∼2000 MPa, respectively. Comparing the Young's modulus of Ga-containing alloys in amorphous and crystalline state we find that the amorphous state shows significant elastic softening (40–48% smaller)which is useful to reduce stress shielding effect for biomedical applications. The alloys show a remarkable thermoplastic formability as the viscosity decreases sharply by an order of magnitude in the supercooled liquid region. ",
author = "Supriya Bera and Parthiban Ramasamy and Daniel Sopu and Baran Sarac and Jakub Zalesak and Christoph Gammer and Mihai Stoica and Mariana Calin and J{\"u}rgen Eckert",
year = "2019",
month = jul,
day = "15",
doi = "10.1016/j.jallcom.2019.04.173",
language = "English",
volume = "793.2019",
pages = "552--563",
journal = "Journal of alloys and compounds",
issn = "0925-8388",
publisher = "Elsevier BV",
number = "15 July",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - Tuning the glass forming ability and mechanical properties of Ti-based bulk metallic glasses by Ga additions

AU - Bera, Supriya

AU - Ramasamy, Parthiban

AU - Sopu, Daniel

AU - Sarac, Baran

AU - Zalesak, Jakub

AU - Gammer, Christoph

AU - Stoica, Mihai

AU - Calin, Mariana

AU - Eckert, Jürgen

PY - 2019/7/15

Y1 - 2019/7/15

N2 - A new series of Ti 40 Zr 10 Cu 36−x Pd 14 Ga x (x = 2, 4, 8 and 10)alloys with improved plasticity and glass-forming ability (GFA)are produced. The strategy is to create local structural heterogeneity in Ti-based bulk metallic glasses (BMGs)by alloying with a soft element which has high negative enthalpy of mixing with Ti-atoms. The GFA of Ti 40 Zr 10 Cu 36−x Pd 14 Ga x rods increases with increasing Ga content up to 4 at.%, and for more Ga it decreases. Minor addition of Ga (x = 2)is beneficial to improve the strength and ductility of the TiZrCuPd-based BMG due to the formation of local structural heterogeneities which facilitate the formation of a highly organized pattern of multiple shear bands under quasi-static compression. Ti 40 Zr 10 Cu 34 Pd 14 Ga 2 BMG shows the best combination of compressive global strain and maximum compressive strength of ∼4.5% and ∼2000 MPa, respectively. Comparing the Young's modulus of Ga-containing alloys in amorphous and crystalline state we find that the amorphous state shows significant elastic softening (40–48% smaller)which is useful to reduce stress shielding effect for biomedical applications. The alloys show a remarkable thermoplastic formability as the viscosity decreases sharply by an order of magnitude in the supercooled liquid region.

AB - A new series of Ti 40 Zr 10 Cu 36−x Pd 14 Ga x (x = 2, 4, 8 and 10)alloys with improved plasticity and glass-forming ability (GFA)are produced. The strategy is to create local structural heterogeneity in Ti-based bulk metallic glasses (BMGs)by alloying with a soft element which has high negative enthalpy of mixing with Ti-atoms. The GFA of Ti 40 Zr 10 Cu 36−x Pd 14 Ga x rods increases with increasing Ga content up to 4 at.%, and for more Ga it decreases. Minor addition of Ga (x = 2)is beneficial to improve the strength and ductility of the TiZrCuPd-based BMG due to the formation of local structural heterogeneities which facilitate the formation of a highly organized pattern of multiple shear bands under quasi-static compression. Ti 40 Zr 10 Cu 34 Pd 14 Ga 2 BMG shows the best combination of compressive global strain and maximum compressive strength of ∼4.5% and ∼2000 MPa, respectively. Comparing the Young's modulus of Ga-containing alloys in amorphous and crystalline state we find that the amorphous state shows significant elastic softening (40–48% smaller)which is useful to reduce stress shielding effect for biomedical applications. The alloys show a remarkable thermoplastic formability as the viscosity decreases sharply by an order of magnitude in the supercooled liquid region.

UR - http://www.scopus.com/inward/record.url?scp=85064653343&partnerID=8YFLogxK

U2 - 10.1016/j.jallcom.2019.04.173

DO - 10.1016/j.jallcom.2019.04.173

M3 - Article

VL - 793.2019

SP - 552

EP - 563

JO - Journal of alloys and compounds

JF - Journal of alloys and compounds

SN - 0925-8388

IS - 15 July

ER -