Isochronal and isothermal crystallization kinetics of Zr–Al–Fe glassy alloys: Effect of high–Zr content

Hua, Nengbin; Chen, Wenzhe; Liu, Xiaoli; Feng, Yan

doi:10.1016/j.jnoncrysol.2014.01.013

Cited by 29 publications

(18 citation statements)

References 37 publications

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“…However, due to the existence of grains inside the ordinary crystalline materials, the application of microdevices has been restricted by the grain size, and ordinary crystalline materials have not been able to meet the needs of miniaturized parts. Zr-based bulk metallic glasses (BMGs) do not display the graininduced scale effect and have excellent properties such as high strength, high hardness, low Young's modulus and high abrasion resistance [1][2][3][4][5][6]. They also have good thermoplastic properties in the supercooled liquid region [7,8], making them ideal materials for MEMS applications.…”

Section: Introductionmentioning

confidence: 99%

Effect of rare earth Y on properties of Zr-based bulk metallic glasses

Li¹,

Li²,

Wang³

et al. 2021

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In this work, ø 3 mm × 70 mm (Zr63.36Cu14.52Ni10.12Al12)1−xYx (x = 0, 0.2, 0.5, 0.6, 1, 1.2, 1.5, 2, and 3 at.%) rod-shaped bulk metallic glasses (BMGs) were fabricated using the copper mold suction casting method and the effects of the addition of Y on the properties of Zr-based BMGs were studied. The results indicate that the properties of Zr-based BMGs can be enormously improved by the addition of an appropriate amount of the rare earth Y element. The values of the supercooled liquid region width (ΔTx), glass-forming ability (GFA) parameter (γ), thermoplastic forming (TPF) ability parameter (S), and plastic strain (εp) for the alloy with x = 0.6 reach 115 K, 0.390, 0.228, and 16.5 %, respectively, and are much higher than those of the alloy with x = 0, indicating that the alloy with x = 0.6 exhibits excellent thermal stability, glass-forming ability, thermoplastic forming ability, and compressive plasticity. It was also found that the alloy with x = 1.5 has the minimum corrosion current (icorr = 1.12 × 10 −9 A cm −2 ), showing excellent corrosion resistance. Overall, the alloy with the Y content of x = 0.6 demonstrates excellent thermal stability, GFA, TPF ability, mechanical properties, and corrosion resistance, thus displaying improved comprehensive properties.

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Section: Introductionmentioning

confidence: 99%

Effect of rare earth Y on properties of Zr-based bulk metallic glasses

Li¹,

Li²,

Wang³

et al. 2021

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“…Recently, lots of works have been performed for Al-Fe and Al-Fe-Zr systems [4][5][6][7][8][9][10][11][12][13]. Especially, the FeAl alloys offer a combination of attractive properties such as a high specific strength, good strength at intermediate temperature and an excellent corrosion resistance at elevated temperature under oxidizing, carburizing and sulfidizing atmospheres [12].…”

Section: Introductionmentioning

confidence: 99%

Formation enthalpies of Al–Fe–Zr–Nd system calculated by using geometric and Miedema's models

Zhang

Wang

Tao

et al. 2015

Physica B: Condensed Matter

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“…[15][16][17][18][19] Therefore, it is essential to investigate the crystallization behaviors and crystallization kinetics of MGs at various heating conditions, which is significant for tuning the structures and properties of MGs. Among them, the nonisothermal crystallization behaviors and crystallization kinetics for MGs with various compositions, that is, multicomponent Zr-Cu-Fe-Al MG, 15 Fe-Co-Cr-Ni-Zr MG, 16 Zr-(CuAg)-Al MG, 17 Fe-Ni-P-B MG, 18 Zr-Co-Al-Cu MG, 24 Fe-Ni-Mo-P-C-B-Cu MG, 25 Ti-Zr-Ni-Cu-Be MG, 26 Co-Fe-Ta-B MG, 29 Ni-Nb-Ti-Zr-Co-Ta MG, 31 Fe-Cr-P-C-B MG, 32 and Fe-Co-Cr-Mo-Y-C-B MG 33 ; ternary U-Co-Al MG, 19 La-Al-Co MG, 27 Zr-Al-Fe MG, 30 Zr-Co-Al MGs, 24,35 Fe-P-C MG, 36 Fe-B-C MG, 37 La-Al-Ni MG, 38 and Pd-Ni-P MG 39 ; and binary Cu-Zr MG, 40 have been extensively researched by Kissinger, Ozawa, Kissinger-Akahira-Sunose (KAS), Ozawa-Flynn-Wall (OFW), and Vogel-Fulcher-Tammann (VFT) approaches using differential scanning calorimeter (DSC). Under nonisothermal crystallization conditions, MGs were continuously heated up to complete crystallization by different heating rates.…”

mentioning

confidence: 99%

Nonisothermal crystallization kinetics of Cr‐rich metallic glass Cr_29.4Fe_29.4Mo_14.7C_14.7B_9.8Y₂ with desirable properties

Jian

Zhuo

et al. 2021

Int J of Chemical Kinetics

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The nonisothermal crystallization kinetics for the first crystallization event of Cr-rich metallic glass (MG) Cr 29.4 Fe 29.4 Mo 14.7 C 14.7 B 9.8 Y 2 with desirable properties was systematically studied by Kissinger, Ozawa, Kissinger-Akahira-Sunose (KAS), Ozawa-Flynn-Wall (OFW), and Vogel-Fulcher-Tammann approaches using differential scanning calorimeter. The apparent activation energy (E) for characteristic temperatures deduced by Kissinger approach is comparable with that deduced by Ozawa approach. The E g for the glass transition temperature is smaller than the E p1 for the peak temperature of the first crystallization event and larger than E for other characteristic temperatures, exhibiting that the glass transition is easier than the growth process of the first crystallization event and more difficult than other processes. The local activation energy estimated by KAS and OFW approaches shows approximate tendency of increasing initially and then gradually decreasing, which indicates that the crystallization process is difficult at first and then gradually becomes easy. The local Avrami exponent (n(x)) changes from n(x) > 2.5 to 1.5 < n(x) < 2.5 for crystallization under low heating rate and from n(x) > 2.5 to 0 < n(x) < 1.5 for crystallization under high heating rate, corresponding to a diffusion-governed crystallization changing from enhancing nucleation rate to reducing nucleation rate under low heating rate and from enhancing nucleation rate to preexisting nuclei under high heating rate, respectively. The kinetic fragility parameter shows that the glass-forming liquid of the present MG is intermediate type with moderate glass-forming ability. The results would provide comprehensive insights to understand the formation of Cr-rich MG.

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Isochronal and isothermal crystallization kinetics of Zr–Al–Fe glassy alloys: Effect of high–Zr content

Cited by 29 publications

References 37 publications

Effect of rare earth Y on properties of Zr-based bulk metallic glasses

Effect of rare earth Y on properties of Zr-based bulk metallic glasses

Formation enthalpies of Al–Fe–Zr–Nd system calculated by using geometric and Miedema's models

Nonisothermal crystallization kinetics of Cr‐rich metallic glass Cr_29.4Fe_29.4Mo_14.7C_14.7B_9.8Y₂ with desirable properties

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Isochronal and isothermal crystallization kinetics of Zr–Al–Fe glassy alloys: Effect of high–Zr content

Cited by 29 publications

References 37 publications

Effect of rare earth Y on properties of Zr-based bulk metallic glasses

Effect of rare earth Y on properties of Zr-based bulk metallic glasses

Formation enthalpies of Al–Fe–Zr–Nd system calculated by using geometric and Miedema's models

Nonisothermal crystallization kinetics of Cr‐rich metallic glass Cr29.4Fe29.4Mo14.7C14.7B9.8Y2 with desirable properties

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Product

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Nonisothermal crystallization kinetics of Cr‐rich metallic glass Cr_29.4Fe_29.4Mo_14.7C_14.7B_9.8Y₂ with desirable properties