W.H. Tian
,
S.L. Hu and M. Nemoto(1) Department of Materials Physics
,
University of Science and Technology Beijing
,
Beijing 100083
,
China 2) Department of Materials Forming
,
University of Science and Technology Beijing
,
Beijing 100083
,
China 3) Department of Materials Science and Engineering
,
Faculty of Engineering
,
Kyushu University
,
Fukuoka 812
,
Japan)Manuscript received in revised form 12 October 1998
金属学报(英文版)
The effect of Cr addition on the microstructures and mechanical properties of NiAl inermetallic alloys containing 4 to 8 mol% Cr has been characterized. It is shown that Cr is not only an efficient soild solution strengthener in NiAl, it is also an efficient precipitation Strengthener by fine disper...
关键词:
NiAl
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W.H. Tian
,
A.L. Fan and M. Nemoto (Department of Materials Physics and Chemistry
,
University of Science and Technology Beijing
,
Beijing 100083
,
China
,
Sasebo National College of Technology
,
Okishin 1-1
,
Sasebo 857-1193
,
Japan)
金属学报(英文版)
The microstructures of B2-ordered NiA1 containing α-Fe precipitates have been investigated in terms of transmission electron microscopy. Fine precipitation of α-Fe (bcc structure) occurs in NiA1 by aging around 973K. The aging behavior was investigated by microhandness measurements and the temperat...
关键词:
nickel aluminide
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W.H. Tian
金属学报(英文版)
The microstructures of Cr modified Al3 Ti containing Al2 Ti and L10-AlTi precipitateshave been investigated in terms of transmission electron microscopy ( TEM). Fine pre-cipitation of Al2 Ti (Ga2Hf type structure) and L 1o-AlTi(Cr) occurs in L l2-Al3 Ti(Cr)by aging around 973K. The aging behavior wa...
关键词:
titanium aluminide
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W.H. Tian
,
A.L. Fan
金属学报(英文版)
The precipitation behavior of Co phases in B2-ordered (Ni, Co)Al has been investigatedin terms of transmission electron microscopy. Fine precipitation off cc-Co occurs in(Ni, Co)Al by aging at temperature over 973K. The orientation relationship betweenthe fcc-Co precipitates and the B2-(Ni, Co)Al ma...
关键词:
nickel aluminides
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W.H. Tian
金属学报(英文版)
Microstructural variations and correlated hardness changes in B2-ordered NiAl containing fine precipitation of Ni2AlTi have been investigated by means of transmission electron microscopy (TEM) and hardness tests. The amount of age hardening is not large as compared to the large microstructural varia...
关键词:
NiAl intermetallics
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