Lightweight Ti-based bulk metallic glasses excluding late transition metals

Dong, Gang; Wiest, Aaron; Lind, Mary Laura; Kahl, Annelen; Johnson, William L.

doi:10.1016/j.scriptamat.2007.10.040

Cited by 94 publications

(67 citation statements)

References 20 publications

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“…Therefore, Be-bearing Ti-based BMGs exhibit relatively low density and high specific strength compared with Be-free Ti-based BMGs. Moreover, as the atomic radius of Be is much smaller than that of most metallic atoms (as shown in Table 1), it has been found that the addition of Be significantly improves the GFA of Zr- [118,119], Cu- [120], and Ti-based BMGs [79][80][81]. Except for the Ti-Cu-Ni system mentioned in Section 2.1.1, the Ti-Zr-Be system is another important Ti-based ternary system with bulk glass-forming ability.…”

Section: Be-containing Ti-bmgsmentioning

confidence: 99%

“…Except for the Ti-Cu-Ni system mentioned in Section 2.1.1, the Ti-Zr-Be system is another important Ti-based ternary system with bulk glass-forming ability. In 2008, Duan et al firstly reported a series of lightweight Ti-Zr-Be BMGs with critical diameters larger than 6 mm [79]. Without containing heavy late transition metals (e.g., Cu, Ni, and Fe), the density of these alloys was lower than 5 g/cm 3 , resulting in a high specific strength larger than 400 J/g, which is more than twice that of the commercial Ti-6Al-4V (the most widely used crystalline titanium alloy).…”

Section: Be-containing Ti-bmgsmentioning

confidence: 99%

“…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 ∆T x ) 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%

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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: Be-containing Ti-bmgsmentioning

confidence: 99%

Section: Be-containing Ti-bmgsmentioning

confidence: 99%

Section: Role Of Alloying Elements On Gfamentioning

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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“…Ti-based bulk metallic glasses (BMGs), as promising lightweight structural materials, have attracted more and more attention during recent years [3][4][5][6][7][8][9][10][11][12]. Ti 40 Zr 25 Ni 8 Cu 9 Be 18 BMG, as one of the best Ti-based BMGs known today, was found to exhibit a good combination of glass forming ability (GFA, the maximum diameter could be 8 mm) and mechanical properties (high compressive strength and large compressive plastic strain) [9,13,14], which could be a potential structural material.…”

Section: Introductionmentioning

confidence: 99%

Structural relaxation of Ti40Zr25Ni8Cu9Be18 bulk metallic glass

Mei

Soubeyroux

Blandin

et al. 2011

Journal of Non-Crystalline Solids

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The enthalpy relaxation behavior of Ti 40 Zr 25 Ni 8 Cu 9 Be 18 bulk metallic glass follows the general characteristics of that for amorphous materials although its unique quenched-in nuclei/amorphous matrix structure: the annealing time dependence of recovery enthalpy follows a stretched exponential function with the mean relaxation time obeying an Arrhenius law, which may be due to the longer incubation time for crystallization τ inc than the relaxation time τ leading to the enthalpy relaxation Two parameters, β g and τ g , representing the stretching exponent and the mean structural relaxation time at the calorimetric glass transition temperature, respectively, are correlated with glass forming ability and thermal stability, respectively. The high value of β g for Ti 40 Zr 25 Ni 8 Cu 9 Be 18 BMG that is much higher than 0.84 and approaches unity reveals its good glass forming ability; however, its low value of τ g indicates a worse thermal stability compared with typical BMGs.

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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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Lightweight Ti-based bulk metallic glasses excluding late transition metals

Cited by 94 publications

References 20 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

Structural relaxation of Ti40Zr25Ni8Cu9Be18 bulk metallic glass

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

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