TY - JOUR
T1 - Isothermal section at 1100 °c of the Fe-Ni-Ta system
AU - Tang, Chengying
AU - Tong, Minmin
AU - Xu, Honghui
AU - Du, Yong
AU - Lee, Joonho
AU - Yao, Qingrong
AU - He, Yuehui
AU - Zhou, Huaiying
N1 - Funding Information:
The financial support from the National Natural Science Foundation of China ( 50861006 , 50971049 ), the Natural Science Foundation of Guangxi ( 0991002Z ) and the Open Project Program of State Key Lab of Powder Metallurgy ( 2008112039 ) are greatly acknowledged.
PY - 2010/8/31
Y1 - 2010/8/31
N2 - The isothermal section of the Fe-Ni-Ta system at 1100 °C was constructed using 6 diffusion couples and 10 alloys, the compositions of which were selected on the basis of the experimental results of the (Fe-Ni alloy)/Ta diffusion couples. The samples were examined by means of optical microscopy, scanning electron microscopy, and electron probe microanalysis. Experimental results showed no existence of ternary compounds at 1100 °C. The following five three-phase equilibria were observed: (1) (Ta) + Ta2Ni + Ta(Fe, Ni), (2) Fe2Ta + Ta (Fe, Ni) + TaNi2, (3) Fe2Ta + TaNi2 + TaNi3, (4) Fe2Ta + TaNi3 + (Fe, Ni), (5) TaNi3 + TaNi8 + (Fe, Ni). The compounds FeTa and NiTa formed continuous solid solution. The solubility of Fe in TaNi2 and TaNi3 was determined to be 18 and 7.8 at.%, respectively, while the solubility of Ni in Fe2Ta was estimated to be 40 at.%.
AB - The isothermal section of the Fe-Ni-Ta system at 1100 °C was constructed using 6 diffusion couples and 10 alloys, the compositions of which were selected on the basis of the experimental results of the (Fe-Ni alloy)/Ta diffusion couples. The samples were examined by means of optical microscopy, scanning electron microscopy, and electron probe microanalysis. Experimental results showed no existence of ternary compounds at 1100 °C. The following five three-phase equilibria were observed: (1) (Ta) + Ta2Ni + Ta(Fe, Ni), (2) Fe2Ta + Ta (Fe, Ni) + TaNi2, (3) Fe2Ta + TaNi2 + TaNi3, (4) Fe2Ta + TaNi3 + (Fe, Ni), (5) TaNi3 + TaNi8 + (Fe, Ni). The compounds FeTa and NiTa formed continuous solid solution. The solubility of Fe in TaNi2 and TaNi3 was determined to be 18 and 7.8 at.%, respectively, while the solubility of Ni in Fe2Ta was estimated to be 40 at.%.
KW - Diffusion
KW - Electron microprobe
KW - Phase diagrams
KW - Scanning electron microscopy
KW - Ternary alloy systems
UR - http://www.scopus.com/inward/record.url?scp=77955472388&partnerID=8YFLogxK
U2 - 10.1016/j.jallcom.2010.05.084
DO - 10.1016/j.jallcom.2010.05.084
M3 - Article
AN - SCOPUS:77955472388
VL - 504
SP - 181
EP - 185
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
SN - 0925-8388
IS - 1
ER -