In situ formation of two amorphous phases by liquid phase separation in Y-Ti-Al-Co alloy

被引：157

作者：

Park, BJ ^{[1
]}

Chang, HJ

Kim, DH

Kim, WT

机构：

[1] Yonsei Univ, Dept Met Engn, Seoul 120749, South Korea

[2] Chongju Univ, Div Appl Sci, Chonju 360764, South Korea

来源：

APPLIED PHYSICS LETTERS | 2004年 / 85卷 / 26期

关键词：

D O I：

10.1063/1.1842360

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The Y28Ti28Al24Co20 alloy undergoes metastable liquid phase separation in the under-cooled liquid state and subsequently solidifies into two different Y-rich and Ti-rich amorphous phases. Secondary phase separation occurs due to the supersaturation of the primary separated liquids as the temperature decreases. Depending on the degree of local undercooling, a wide range of length scale of the microstructure is observed. The characteristic length scale of the two amorphous phases is similar to250 nm near the air side of the ribbon, and similar to25 nm near the wheel side of the ribbon. (C) 2004 American Institute of Physics.

引用

页码：6353 / 6355

页数：3

共 14 条

[1] DECOMPOSITION AND PRIMARY CRYSTALLIZATION IN UNDERCOOLED ZR41.2TI13.8 CU12.5NI10.0BE22.5 MELTS [J].