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Thermal Stability of Amorphous Ti- Cu- Ni- Sn Prepared by Mechanical Alloying

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Abstract:

Ti-Cu-Ni-Sn quaternary amorphous alloys of Ti50Cu32Ni15Sn3, Ti50Cu25Ni20Sn5, and Ti50Cu23Ni20Sn7 composition were prepared by mechanical alloying in a planetary high-energy ballmill (AGO-2). The amorphization of all three alloys was found to set in after milling at 300rpm speed for 2h. A complete amorphization was observed for Ti50Cu32Ni15Sn3 and Ti50Cu25Ni20Sn5 after 30h and 20h of milling, respectively. Differential scanning calorimetry analyses revealed that the thermal stability increased in the order of Ti50Cu32Ni15Sn3, Ti50Cu25Ni20Sn5, and Ti50Cu23Ni20Sn7.

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Periodical:

Materials Science Forum (Volumes 534-536)

Pages:

233-236

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.534-536.233

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Online since:

January 2007

Authors:

N.T.H. Oanh, Pyuck Pa Choi, Ji Soon Kim, Dae Hwan Kwon, Young Soon Kwon

Keywords:

Amorphous, Mechanical Alloying (MA), Ti-Based Alloys

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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