Chin. Phys. Lett.  2002, Vol. 19 Issue (11): 1721-1723    DOI:
Original Articles |
Thermodynamical Phase Equilibrium of Iron Nitrides at Low Temperatures
LEI Ming-Kai;WANG Xing-Jun
Surface Engineering Laboratory, Department of Materials Engineering, Dalian University of Technology, Dalian 116024
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LEI Ming-Kai, WANG Xing-Jun 2002 Chin. Phys. Lett. 19 1721-1723
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Abstract The presence of α-Fe(N), γ'-Fe4N, and ε-Fe4N1-x phases and the phase equilibrium between α-Fe(N) and γ'-Fe4N, and γ'-Fe4N and ε-Fe4N1-x have been studied at the low temperatures below 350°C, according to the binary Fe-N phase diagram calculated using the sublattice-compound energy model. The α-Fe(N), γ'-Fe4N, and ε-Fe4N1-x phases would be thermodynamically stable at the low temperatures. Thermodynamic phase equilibrium of the iron nitrides is supported by the experimental results, explaining the phase formation and its stability in the Fe-N system at low temperatures.
Keywords: 81.30.-t      81.05.Je     
Published: 01 November 2002
PACS:  81.30.-t (Phase diagrams and microstructures developed by solidification and solid-solid phase transformations)  
  81.05.Je (Ceramics and refractories (including borides, carbides, hydrides, nitrides, oxides, and silicides))  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2002/V19/I11/01721
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