Research on Zr50Al15−xNi10Cu25Yx amorphous alloys prepared by mechanical alloying with commercial pure element powders
✍ Scribed by Woyun Long; Xueqiong Ouyang; Zhiwei Luo; Jing Li; Anxian Lu
- Publisher
- Elsevier Science
- Year
- 2011
- Tongue
- English
- Weight
- 884 KB
- Volume
- 406
- Category
- Article
- ISSN
- 0921-4526
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✦ Synopsis
Amorphous Zr 50 Al 15 À x Ni 10 Cu 25 Y x alloy powders were fabricated by mechanical alloying at low vacuum with commercial pure element powders. The effects on glass forming ability of Al partial substituted by Y in Zr 50 Al 15 Ni 10 Cu 25 and thermal stability of Si 3 N 4 powders addition were investigated. The as-milled powders were characterized by X-ray diffraction, scanning electron microscopy and differential scanning calorimeter. The results show that partial substitution of Al can improve the glass forming ability of Zr 50 Al 15 Ni 10 Cu 25 alloy. Minor Si 3 N 4 additions raise the crystallization activation energy of the amorphous phase and thus improve its thermal stability.