Critical cooling rate and thermal stability of Fe-Co-Zr-Y-Cr-Mo-B amorphous alloy

被引：34
作者：
Chen, QJ
Fan, HB
Shen, J [1 ]
Sun, JF
Lu, ZP
机构：
[1] Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150001, Peoples R China
[2] Oak Ridge Natl Lab, Met & Ceram Div, Oak Ridge, TN 37831 USA
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2006年 / 407卷 / 1-2期
关键词：
bulk metallic glasses; glass-forming ability; thermal stability; critical cooling rates; activation energy;
D O I：
10.1016/j.jallcom.2005.06.031
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The critical cooling rate of the Fe61Co5Zr8Y2Cr2Mo7B15 bulk amorphous alloy was determined to be 37 K/s, providing an indication that this alloy has a high glass-forming ability. The non-isothermal crystallization kinetics of the Fe61Co5Zr8Y2Cr2Mo7B15 amorphous alloy prepared by using the copper-mold casting or melt-spinning were also investigated. It is found that the activation energies in the non-isothermal crystallization process show a strong dependence on the cooling rates for glass formation, revealing that the melt-spun amorphous alloy has a higher thermal stability. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：125 / 128
页数：4
相关论文
共 12 条
[1]   CONTINUOUS COOLING APPROXIMATION FOR THE FORMATION OF A GLASS [J].
BARANDIARAN, JM ;
COLMENERO, J .
JOURNAL OF NON-CRYSTALLINE SOLIDS, 1981, 46 (03) :277-287
[2]   FORMATION AND MECHANICAL-PROPERTIES OF AMORPHOUS AL-NI-ND ALLOYS [J].
INOUE, A ;
OCHIAI, T ;
HORIO, Y ;
MASUMOTO, T .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1994, 179 :649-653
[3]  
KISSINGER HE, 1957, ANAL CHEM, V29, P32
[4]   Role of yttrium in glass formation of Fe-based bulk metallic glasses [J].
Lu, ZP ;
Liu, CT ;
Porter, WD .
APPLIED PHYSICS LETTERS, 2003, 83 (13) :2581-2583
[5]  
Luborsky F. E., 1983, AMORPHOUS METALLIC A, DOI DOI 10.1016/B978-0-408-11030-3.50006-6
[6]   NANOCRYSTALLINE SOFT-MAGNETIC FE-M-B (M=ZR, HF, NB) ALLOYS PRODUCED BY CRYSTALLIZATION OF AMORPHOUS PHASE (OVERVIEW) [J].
MAKINO, A ;
INOUE, A ;
MASUMOTO, T .
MATERIALS TRANSACTIONS JIM, 1995, 36 (07) :924-938
[7]   Microstructural studies of crystallization of a Zr-based bulk metallic glass [J].
Pekarskaya, E ;
Löffler, JF ;
Johnson, WL .
ACTA MATERIALIA, 2003, 51 (14) :4045-4057
[8]   Dynamic mechanical properties in a Zr46.8Ti13.8Cu12.5Ni10Be27.5 bulk metallic glass [J].
Pelletier, JM .
JOURNAL OF ALLOYS AND COMPOUNDS, 2005, 393 (1-2) :223-230
[9]   Primary crystallization in amorphous Al-based alloys [J].
Perepezko, JH ;
Hebert, RJ ;
Wu, RI ;
Wilde, G .
JOURNAL OF NON-CRYSTALLINE SOLIDS, 2003, 317 (1-2) :52-61
[10]   Glass forming ability of multi-component metallic systems [J].
Shao, G ;
Lu, B ;
Liu, YQ ;
Tsakiropoulos, P .
INTERMETALLICS, 2005, 13 (3-4) :409-414
12