Lightweight Ti–Zr–Be–Al bulk metallic glasses with improved glass-forming ability and compressive plasticity

Gong, Pan; Yao, Kefu; Shao, Yang

doi:10.1016/j.jnoncrysol.2012.06.011

Cited by 31 publications

(19 citation statements)

References 38 publications

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“…Based on experimental results, the best glass former was located at Ti 41 Zr 25 Be 34 , which is close to the predicted composition by binary-eutectic rule (Ti 41 Zr 32 Be 27 ). Then, a series of Ti-Zr-Be-(Fe, Al, Ag, Cu, Ni, V, Cr) BMGs [79][80][81][87][88][89][90][91][92][93][94] with improved GFA was reported, and some of the developed quaternary alloys were found to possess a larger critical size up to a centimeter scale. A pseudo Ti-Zr-Cu-Ni-Be system, which possesses a much higher GFA, was discovered based on the Ti-Zr-Be system.…”

Section: Be-containing Ti-bmgsmentioning

confidence: 99%

“…In this section, we will focus on the effect of alloying on the GFA of Ti-based BMGs. Table 3 summarizes the effects of different alloying elements on the thermal stability (reflected by ∆Tx) and GFA of Ti-based BMGs [39,49,52,54,57,79,87,[90][91][92]99,[105][106][107][108]110,117,[125][126][127][128][129][130]. …”

Section: Role Of Alloying Elements On Gfamentioning

confidence: 99%

“…For Ti-based BMGs, this argument is supported by some examples listed in Table 3. For example, in order to improve the GFA of a Ti 41 Zr 25 Be 34 alloy, the alloying quantities of Fe, Al, Cu, Ni, or Cr have to be over 5 atom % [79,[87][88][89][90][91][92]. However, there are contrary examples.…”

Section: The Additions Of Metallic Elementsmentioning

confidence: 99%

“…Much research shows that atomic size differences between the constituent elements and the heat of mixing play important roles on the glass formation of BMGs [135][136][137]. Recently, it has been found that the electronegativity difference also influences the GFA of Al- [138,139], Fe- [140], and Ti-based BMGs [90][91][92][93]. In order to evaluate the GFA of Ti-based BMGs, Zhao et al [93] calculated the parameters including the atomic size difference δ, electronegativity difference ∆x, and the enthalpy of mixing ∆H mix for typical Ti-based BMGs.…”

Section: Prediction Of Gfa Of Ti-based Bmgsmentioning

confidence: 99%

“…A simple but effective way is replacing one of the constituent elements with alloying elements that possess a higher Poisson's ratio. Gong et al investigated the alloying effect on the compressive plasticity of Ti-Zr-Be BMGs [87][88][89][90][91][92][93][94]. Among the constituent elements in the Ti-Zr-Be system, Be possesses a very low Poisson's ratio of 0.032, while Zr possesses a high Poisson's ratio of 0.34.…”

Section: Poisson's Ratio Control Strategymentioning

confidence: 99%

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Review on the Research and Development of Ti-Based Bulk Metallic Glasses

Gong

Deng

Jin

et al. 2016

Metals

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Abstract:Ti-based bulk metallic glasses (BMGs) are very attractive for applications because of their excellent properties such as high specific strength and high corrosion resistance. In this paper, we briefly review the current status of the research and development of Ti-based bulk metallic glasses. Emphasis is laid on glass-forming ability, mechanical properties, corrosion resistance, and biocompatibility.

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Section: Be-containing Ti-bmgsmentioning

confidence: 99%

Section: Role Of Alloying Elements On Gfamentioning

confidence: 99%

Section: The Additions Of Metallic Elementsmentioning

confidence: 99%

Section: Prediction Of Gfa Of Ti-based Bmgsmentioning

confidence: 99%

Section: Poisson's Ratio Control Strategymentioning

confidence: 99%

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Review on the Research and Development of Ti-Based Bulk Metallic Glasses

Gong

Deng

Jin

et al. 2016

Metals

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A New Centimeter‐Sized Ti‐Based Quaternary Bulk Metallic Glass with Good Mechanical Properties

et al. 2013

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Ti-based bulk metallic glasses (BMGs) have attracted much attention due to their outstanding properties such as high specific strength and good anti-corrosion properties. [1,2] Among the typical light-metal-based BMGs, Al-based BMGs possess poor glass-forming ability (GFA) with a maximum size of only 1 mm, [3,4] while most Mg-based BMGs are highly brittle even under compression. [5,6] By contrast, Ti-based BMGs have a higher probability for practical application than Mg-based and Al-based BMGs. In recent years, a number of new Ti-based BMGs have been discovered and some of them exhibit superior GFA with a critical size larger than 1 cm, such as Ti-Zr-Cu-Ni-Be [7][8][9] and Ti-Zr-Cu-Pd-Sn. [10] However, the developed centimeter-sized Ti-based alloys have complicated composition with at least five constituent elements. Then it is meaningful to explore Ti-based alloys with high GFA and fewer constituent elements, just like these in Pd-based glassy alloys (e.g., Pd-Si, [11] Pd-Cu-Si, [12] and Pd-Ni-Cu-P [13] BMGs) despite of that it would be difficult. According to our knowledge, Ti 45 Zr 20 Be 35 and Ti 40 Zr 25 Be 35 glassy alloys [14] with a critical diameter of 6 mm, may possess the best GFA in Ti-based ternary systems. The largest size of Ti-based quaternary BMGs is also only 8 mm obtained in Ti-Zr-Be-Cr [14] and Ti-Zr-Be-V [15] alloy systems. So further COMMUNICATIONWe report a new Ti 40 Zr 26 Be 28 Fe 6 bulk metallic glass designed by slightly decreasing Ti/Zr concentration ratio based on the newly developed Ti 41 Zr 25 Be 28 Fe 6 bulk metallic glass. The Ti 40 Zr 26 Be 28 Fe 6 glassy alloy exhibits high thermal stability and the width of the supercooled liquid region for this alloy is up to 100 K. By conventional copper mold suction casting method, Ti 40 Zr 26 Be 28 Fe 6 fully glassy rod with a diameter of 10 mm can be successfully obtained. Ti 40 Zr 26 Be 28 Fe 6 glassy alloy also possesses excellent mechanical properties such as a high specific strength of 4.03 Â 10 5 Nm kg À1 and an obvious compressive plastic strain of 7.4%, which make it possible to be used as novel aerospace materials.ADVANCED ENGINEERING MATERIALS 2013, 15, No. 8

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Low‐Density High‐Strength Bulk Metallic Glasses and Their Composites: A Review

et al. 2014

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This review gives an overview of the field of low-density (<6 g cm À3 ) bulk metallic glasses/composites and their potential engineering and space applications. The review focuses on four systems, Al-, Mg-, Ca-, and Ti-based metallic glass-forming systems. In the following sections, glass forming ability, mechanical properties, thermal stability, and corrosion resistance of the four metallic glass systems and their composites are presented.

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Lightweight Ti–Zr–Be–Al bulk metallic glasses with improved glass-forming ability and compressive plasticity

Cited by 31 publications

References 38 publications

Review on the Research and Development of Ti-Based Bulk Metallic Glasses

Review on the Research and Development of Ti-Based Bulk Metallic Glasses

A New Centimeter‐Sized Ti‐Based Quaternary Bulk Metallic Glass with Good Mechanical Properties

Low‐Density High‐Strength Bulk Metallic Glasses and Their Composites: A Review

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