Calculation of Magnetization and Phase Equilibrium in Fe-C Binary System under a Magnetic Field

2005 ◽  
Vol 105 ◽  
pp. 187-194 ◽  
Author(s):  
Yu Dong Zhang ◽  
Chang Shu He ◽  
X. Zhao ◽  
Yan Dong Wang ◽  
Liang Zuo ◽  
...  

The Weiss model is extended by substituting the molecular field coefficient lwith a short-range-ordering coefficient g valid around and above Tc. The temperature variations of susceptibility of fcc Fe are calculated with a band model. Based on the above models, the phase equilibrium diagram of Fe-C binary system under a magnetic field is calculated.

2009 ◽  
Vol 49 (8) ◽  
pp. 1212-1219 ◽  
Author(s):  
Ikuo Ohnuma ◽  
Toshiyuki Gendo ◽  
Ryosuke Kainuma ◽  
Gerhard Inden ◽  
Kiyohito Ishida

Author(s):  
Yu Dong Zhang ◽  
Chang Shu He ◽  
X. Zhao ◽  
Yan Dong Wang ◽  
L. Zuo ◽  
...  

1975 ◽  
Vol 30 (5) ◽  
pp. 645-655
Author(s):  
Peter Brill

Abstract The paramagnetic susceptibility of four PdAgFe alloy series containing 1, 3, 5 and 7 at. % Fe have been measured between 20° and 150 °C. On the basis of a band filling model the local moment contribution to the susceptibility has been evaluated according to a Curie -Weiss law. Assuming that the iron atoms donate 3 electrons and the silver atoms 1 electron to the Pd 4d band, the effective magnetic moments and the paramagnetic Curie temperatures of all the alloys can be represented by a single curve against the electron concentration. The effective magnetic moment is consistent with an Fe moment of 5.92 μB localized on the iron sites and a Pd moment varying with electron concentration and temperature. The same turns out to be true for the ferromagnetic region where the saturation moment, obtained on PdFe alloys and a PdAgFe alloy by different authors, is considered to arise from a localized Fe moment of 5 μB and a concentration dependent Pd moment. The molecular field coefficient for the interaction between the Fe moments and the Pd 4d electrons is found to be 850 mol/cm3 at 385 K and 1200 mol/cm3 at 0 K. Finally, the iron moment suggested in this work is contrasted with the moment derived from neutron diffraction measurements.


Calphad ◽  
2019 ◽  
Vol 64 ◽  
pp. 115-125 ◽  
Author(s):  
Xin Liu ◽  
Victor L. Vinograd ◽  
Sergii Nichenko ◽  
Dmitrii A. Kulik ◽  
Xiancai Lu ◽  
...  

1984 ◽  
Vol 40 (3) ◽  
pp. 208-213 ◽  
Author(s):  
J. O. Thomas ◽  
M. Aldén ◽  
G. J. McIntyre ◽  
G. C. Farrington

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