Paper Title:

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

Periodical Materials Science Forum (Volumes 534 - 536)
Main Theme Progress in Powder Metallurgy
Edited by Duk Yong Yoon, Suk-Joong L. Kang, Kwang Yong Eun and Yong-Seog Kim
Pages 233-236
DOI 10.4028/www.scientific.net/MSF.534-536.233
Citation N.T.H. Oanh et al., 2007, Materials Science Forum, 534-536, 233
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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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.