球磨ZrCuAl、NiTiZrCu和熔纺ZrNiTiCuAl合金的结构研究。

Structure studies of ball-milled ZrCuAl, NiTiZrCu and melt-spun ZrNiTiCuAl alloys.

作者信息

Dutkiewicz J, Kubícek M, Pastrnák M, Maziarz W, Lejkowska M, Czeppe T, Morgiel J

机构信息

Institute of Metallurgy and Materials Science of the Polish Academy of Sciences, Kraków, ul. Reymonta 25, Poland.

出版信息

J Microsc. 2006 Sep;223(Pt 3):268-71. doi: 10.1111/j.1365-2818.2006.01643.x.

DOI:10.1111/j.1365-2818.2006.01643.x

PMID:17059547

Abstract

ZrNiTiCu and ZrNiTiCuAl alloys were amorphized using either a melt-spinning or ball-milling process in a high-energy planetary mill. The elemental powders were initially blended to the desired composition (in at.%) of Zr, 65; Cu, 27.5; Al, 7.5 and of Ti, 25; Zr, 17; Cu, 29; Ni, 29, respectively. The composition of alloys was chosen to be the same as for the bulk amorphous ZrCuAl and easy glass-forming ZrNiTiCu alloys. An almost fully amorphous structure was obtained after 80 h of milling in the case of both compositions. Transmission electron microscopy studies of ball-milled powders revealed the presence of nano-crystallites [2-5 nm for ZrCuAl and smaller (1-3 nm) for the ZrTiNiCu alloy]. High-resolution transmission electron microscopy of melt-spun ZrNiTiCuAl ribbons provided evidence of the amorphous structure.

摘要

ZrNiTiCu和ZrNiTiCuAl合金通过在高能行星式球磨机中采用熔体纺丝或球磨工艺非晶化。首先将元素粉末混合至所需的成分（原子百分比），ZrNiTiCuAl合金中Zr为65%、Cu为27.5%、Al为7.5%，ZrNiTiCu合金中Ti为25%、Zr为17%、Cu为29%、Ni为29%。合金的成分选择与块状非晶ZrCuAl和易形成玻璃的ZrNiTiCu合金相同。两种成分在球磨80小时后均获得了几乎完全非晶的结构。对球磨粉末的透射电子显微镜研究表明存在纳米微晶（ZrCuAl为2 - 5纳米，ZrTiNiCu合金更小，为1 - 3纳米）。对熔体纺丝的ZrNiTiCuAl薄带进行的高分辨率透射电子显微镜研究证实了其非晶结构。