Ti-based amorphous alloys with a large supercooled liquid region

被引：116
|
作者：
Zhang, T [1 ]
Inoue, A [1 ]
机构：
[1] Tohoku Univ, Mat Res Inst, Sendai, Miyagi 9808577, Japan
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2001年 / 304卷 / 304-306期
关键词：
amorphous alloy system; thermal stability; supercooled liquid;
D O I：
10.1016/S0921-5093(00)01592-6
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A new amorphous alloy system of Ti-eu-Ni-B-Sn-Si with high thermal stability of supercooled liquid was found. The temperature interval of the supercooled liquid region before crystallization was above 70 R. The glass transition temperature (T-g) and the reduced glass transition temperature (T-g/T-m) of the Ti50Cu20Ni24B1Si2Sn3 alloy are 726 K and 0.59. respectively. The high thermal stability of the supercooled liquid as well as the high T-g/T-m leads to the production of bulk amorphous alloy with a diameter up to 1 mm by copper mold casting. The Vickers hardness, Young's modulus and tensile fracture strength of the 1 mm diameter bulk amorphous alloy are 620, 110 GPa and 2100 MPa, respectively. The fracture surface exhibits a vein-like morphology, typical for many ductile amorphous alloys. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：771 / 774
页数：4
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