Ti-based amorphous alloys with a wide supercooled liquid region

Inoue, Akihisa; Nishiyama, Nobuyuki; Amiya, Kenji; Zhang, Tao; Masumoto, T.

doi:10.1016/0167-577x(94)90057-4

Cited by 192 publications

(81 citation statements)

References 11 publications

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“…The high glass-forming ability enables us to prepare bulk glassy alloys by copper mold casting or quenching the melt in a quartz tube into stirred water. As a result, a number of bulk glassy alloys have been successfully prepared in multicomponent systems such as Mg-, 2) Zr-, 3) Ti-, 4) Fe-, 5) Pd-, 6) Ni-, 7) Co- 8) and based alloys. Summarizing the features of the above-mentioned multicomponent systems, the following three empirical rules have been proposed, 10) i.e., (1) multi-component systems consisting of more than three kinds of elements, (2) significant difference in atomic size ratios above 12% among the main constituent elements, and (3) suitable negative heats of mixing among their main elements.…”

Section: Introductionmentioning

confidence: 99%

Bulk Glass Formation of Ti-Zr-Hf-Cu-M (M=Fe, Co, Ni) Alloys

Wang²,

Zhang

et al. 2002

Mater. Trans.

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193

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mold casting. The T x and T g of the glassy rod were 711 K and 658 K and T g /T m was 0.57. The bulk glassy alloy can be characterized by equal concentration of constituent elements without distinct host component. It is confirmed that more multicomponent glassy systems have a better glass-forming ability as compared with simpler alloy systems. The glassy alloy rod also exhibits good mechanical properties which are similar to those for ordinary glassy alloys. The finding of this alloy system may provide a new synthesis method of bulk glassy alloys.

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Section: Introductionmentioning

confidence: 99%

Bulk Glass Formation of Ti-Zr-Hf-Cu-M (M=Fe, Co, Ni) Alloys

Wang²,

Zhang

et al. 2002

Mater. Trans.

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193

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“…Since the success of forming bulk glassy alloys with a large supercooled liquid region before crystallization and good mechanical properties in Ln 1) and Mg 2) based systems by a copper mold casting method in late 1980's, a number of bulk glassy alloys have been prepared in multicomponent systems such as Zr-, 3,4) Ti-, 5) Fe-, 6) Pd-Cu-, 7) Ni- 8) and Co- 9) alloys. Among these bulk glassy alloys, high tensile fracture strength comparable to compressive fracture strength has been obtained only in Ln-, Mg-, Zr-and Pd-Cu-based bulk glassy alloys with good ductility.…”

Section: Introductionmentioning

confidence: 99%

Effects of Additional Elements on the Glass Formation and Corrosion Behavior of Bulk Glassy Cu-Hf-Ti Alloys

et al. 2003

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New bulk glassy (Cu 0:6 Hf 0:25 Ti 0:15 ) 98 M 2 (M = Mo, Ta and Nb) alloys with high thermal stability were synthesized and the effects of additional elements Mo, Ta and Nb on the glass formation and corrosion behavior were examined. The maximum diameter for glass formation of the 2 at%Mo, 2 at%Ta and 2 at%Nb alloys was 1.5 mm, 3.5 mm and 4.0 mm, respectively. The corrosion behavior of the Cu-Hf-Ti-(Mo, Ta and Nb) glassy alloys was examined by weight loss and electrochemical measurements. By substitution of 2 at%Mo, Ta or Nb for the Cu 60 Hf 25 Ti 15 alloy, the corrosion rates of the alloys decreased to 1=2 in 1 N HCl and two orders of magnitude in 3% NaCl solution. It was also found that substitution of elements Mo, Ta and Nb for the Cu 60 Hf 25 Ti 15 glassy alloy was effective on decreasing anodic passive current density in 3% NaCl solution.

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“…Ti-rich amorphous alloys showing the undercooled liquid region during heating have been reported in alloy systems such as Ti-Be-Zr, 1) Ti-NiCu, 6) and Ti-Ni-Cu-Al. 7) However, the temperature range of the undercooled liquid region was not large enough to form a bulk amorphous alloy by casting process. Recently, large values of ∆T x (> 50 K) have been reported in Ti-Cu-Ni-Sn amorphous alloys.…”

Section: Introductionmentioning

confidence: 99%

Glass Forming Ability and Crystallization Behavior in Amorphous Ti50Cu32-xNi15Sn3Bex (x=0, 1, 3, 7) Alloys

Kim

Kim²,

Kim

2002

Mater. Trans.

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The thermal stability and crystallization behavior of melt spun Ti 50 Cu 32−x Ni 15 Sn 3 Be x (x = 0, 1, 3, 7) amorphous alloys were investigated by differential scanning calorimetry (DSC), X-ray diffractometry(XRD) and transmission electron microscopy (TEM). With increasing Be content, x from 0 to 7, ∆T x gradually decreased from 73 to 45 K, but T rg increased from 0.53 to 0.57. With increasing Be content, crystallization behavior changes from two exothermic events (x = 0, 1) to three exothermic events (x = 3, 7).

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Ti-based amorphous alloys with a wide supercooled liquid region

Cited by 192 publications

References 11 publications

Bulk Glass Formation of Ti-Zr-Hf-Cu-M (M=Fe, Co, Ni) Alloys

Bulk Glass Formation of Ti-Zr-Hf-Cu-M (M=Fe, Co, Ni) Alloys

Effects of Additional Elements on the Glass Formation and Corrosion Behavior of Bulk Glassy Cu-Hf-Ti Alloys

Glass Forming Ability and Crystallization Behavior in Amorphous Ti<SUB>50</SUB>Cu<SUB>32-x</SUB>Ni<SUB>15</SUB>Sn<SUB>3</SUB>Be<SUB>x</SUB> (x=0, 1, 3, 7) Alloys

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