Role of niobium and oxygen concentration on glass forming ability and crystallization behavior of Zr-Ni-Al-Cu-Nb bulk metallic glasses with low copper concentration

We developed novel Ti-Zr-Be-Co bulk metallic glasses through Co addition based on a ternary Ti45Zr20Be35 alloy. By altering the alloying routes and alloying contents, the influence of Co alloying on glass-forming ability, thermal stability, thermoplastic formability, crystallization behavior, and corrosion resistance has been investigated systematically. It was found that the best alloying route for enhancing the glass-forming ability, thermoplastic formability, compressive plasticity, and corrosion resistance is to replace Be by Co. Ti45Zr20Be23Co12 possesses the largest critical diameter of 15 mm for glass formation. Ti45Zr20Be27Co8 possesses the highest thermoplastic formability which is comparable to that of Vitreloy alloys. Ti45Zr20Be25Co10 exhibits the largest room temperature plasticity of 15.7% together with a high specific strength of 3.90 × 105 Nm/kg. The addition of Co also strongly affects the crystallization behavior of the base alloy, resulting in a more complex crystallization process. The corrosion resistance of Ti-Zr-Be alloy in 1 mol/L HCl solution can also be enhanced by Co alloying. The related mechanisms have been explained in detail, which provide guidance for the composition design of Ti-based metallic glasses with improved properties.

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The role of open spaces to glass-forming ability in bulk metallic glasses

Intermetallics ◽

10.1016/j.intermet.2018.06.011 ◽

2018 ◽

Vol 100 ◽

pp. 112-115 ◽

Cited By ~ 4

Author(s):

Y. Zhao ◽

P.F. Liu ◽

L. Wu ◽

B. Zhang ◽

K. Sato

Keyword(s):

Metallic Glasses ◽

Bulk Metallic Glasses ◽

Glass Forming Ability ◽

Open Spaces ◽

Glass Forming

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Crystallization behavior of Fe- and Co-based bulk metallic glasses and their glass-forming ability

Materials Chemistry and Physics ◽

10.1016/j.matchemphys.2015.05.058 ◽

2015 ◽

Vol 162 ◽

pp. 197-206 ◽

Cited By ~ 21

Author(s):

D.V. Louzguine-Luzgin ◽

A.I. Bazlov ◽

S.V. Ketov ◽

A. Inoue

Keyword(s):

Metallic Glasses ◽

Crystallization Behavior ◽

Bulk Metallic Glasses ◽

Glass Forming Ability ◽

Glass Forming

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The outstanding effect and mechanism of non-inert casting atmospheres on glass forming ability of P-containing Fe-based soft magnetic bulk metallic glasses

Journal of Alloys and Compounds ◽

10.1016/j.jallcom.2021.158991 ◽

2021 ◽

Vol 866 ◽

pp. 158991

Author(s):

Jianhua Zhang ◽

Chengzhong Zhang ◽

Xiaoxiong Zhang ◽

Zhien Li ◽

Aina He ◽

...

Keyword(s):

Metallic Glasses ◽

Bulk Metallic Glasses ◽

Glass Forming Ability ◽

Soft Magnetic ◽

Glass Forming

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Effects of Al replacement on glass forming ability and mechanical properties of Zr-based bulk metallic glasses

Journal of Non-Crystalline Solids ◽

10.1016/j.jnoncrysol.2021.120962 ◽

2021 ◽

Vol 568 ◽

pp. 120962

Author(s):

Y. Tan ◽

Y.W. Wang ◽

X.W. Cheng ◽

Q. Fu ◽

Z.H. Xin ◽

...

Keyword(s):

Mechanical Properties ◽

Metallic Glasses ◽

Bulk Metallic Glasses ◽

Glass Forming Ability ◽

Glass Forming

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On Glass Forming Ability of Bulk Metallic Glasses by Relating the Internal Friction Peak Value

Metals ◽

10.3390/met10060767 ◽

2020 ◽

Vol 10 (6) ◽

pp. 767

Author(s):

Xianfeng Zhang ◽

Xiao Cui ◽

Zhuotong Du ◽

Fangqiu Zu ◽

Jinjing Li ◽

...

Keyword(s):

Internal Friction ◽

Metallic Glasses ◽

Bulk Metallic Glasses ◽

Glass Forming Ability ◽

Liquid Region ◽

Internal Friction Peak ◽

Glass Forming ◽

Constituent Elements ◽

Valid Criterion ◽

Peak Value

The internal friction (IF) behaviors of a series of LaCe-, Zr-, and La-based bulk metallic glasses (BMGs) were studied by a computer-controlled, conventional inverted torsion pendulum. The results indicate that with an increasing temperature, the IF also increases gradually in the supercooled liquid region, followed by a decrease caused by crystallization. BMGs with a good glass forming ability (GFA) usually possess a high IF peak value for an alloy system with the same constituent elements. Furthermore, the magnitude of the IF value (Qi−1) of the inflection point is an efficient criterion of GFA. The Qi−1 value is a valid criterion under the conditions of identical constituent elements and different element contents. However, Qi−1 and GFA have no relationship among different alloy systems.

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