The formation of Mo precipitates in a supersaturated Mo5SiB2 intermetallic phase

被引：45
作者：
Sakidja, R
Sieber, H
Perepezko, JH
机构：
[1] Univ Wisconsin, Dept Mat Sci & Engn, Madison, WI 53706 USA
[2] Dept Mat Sci III Glass & Ceram, D-91058 Erlangen, Germany
来源：
PHILOSOPHICAL MAGAZINE LETTERS | 1999年 / 79卷 / 06期
关键词：
D O I：
10.1080/095008399177192
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Upon annealing a Mo70B20Si10 alloy in the as-cast condition at 1600 degrees C, plate-shaped precipitates of a Mo solid solution (Mo-ss) have been observed to develop within an ordered Mo5SiB2 (T-2) intermetallic phase (D8(l)). The crystallographic orientation of Mo-ss plate-like precipitates within the T-2 matrix has been determined by transmission electron microscopy-selected area electron diffraction studies to show mainly the relations {111}(Mo)parallel to(001)(T2) and [011](Moss)parallel to[110](T2). Upon a prolonged annealing treatment at 1600 degrees C for 150 h, the plate-like morphology was still maintained and the Mo-ss-T2 long interface remained semicoherent as confirmed by high-resolution transmission electron microscopy analysis.
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页码：351 / 357
页数：7
相关论文
共 15 条
[1]  
Aaronson H., 1978, PRECIPITATION PROCES, P31
[2]   APPLICATION OF TERNARY PHASE-DIAGRAMS TO THE DEVELOPMENT OF MOSI2-BASED MATERIALS [J].
BOETTINGER, WJ ;
PEREPEZKO, JH ;
FRANKWICZ, PS .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1992, 155 (1-2) :33-44
[3]   Atomistic simulations of alloying additions to NiAl [J].
Bozzolo, G ;
Noebe, RD ;
Ferrante, J ;
Garg, A .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1997, 240 :769-776
[4]  
Chan K.S., 1994, MATER RES SOC S P, V364, P469
[5]   ON THE TOUGHENING OF INTERMETALLICS WITH DUCTILE FIBERS - ROLE OF INTERFACES [J].
DEVE, HE ;
MALONEY, MJ .
ACTA METALLURGICA ET MATERIALIA, 1991, 39 (10) :2275-2284
[6]  
Meier K., 1979, Z METALLKD, V70, P271
[7]  
Nowotny H., 1957, Plansee Berichte Pulvermetallurgie, V5, P86
[8]  
NUNES CA, 1997, STRUCTURAL INTERMETA, P831
[9]  
PEREPEZKO JH, 1997, MATER RES SOC S P, V460, P1
[10]  
Sakidja R, 1998, MOLYBDENUM AND MOLYBDENUM ALLOYS, P99
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