Thermodynamics of iron-aluminum alloys at 1573 K

Retraction: Representation of Reaction Ability for Structural Units in Fe–Al Binary Melts

“…1(b). The calculated mass action concentration NAl of Al has a very excellent agreement with the reported activity aR, Al of Al by different researchers [5][6][7][8]21) in Fe-Al binary melts as shown in Fig. 1(a).…”

“…The comparison between the calculated mass action concentration NAl of Al and the reported activity aR, Al of Al by different researchers [5][6][7][8]21) relative to pure liquid Al(l) as standard state in Fe-Al binary melts with changing mole fraction xAl of Al from 0 to 1 in a temperature range from 1 573 K to 1 873 K was illustrated in Fig. 1(a).…”

“…1) For these reasons, the reaction abilities of elements, especially activity coefficient γAl of Al and γFe of Fe in Fe-Al binary melts have attracted tremendous attention in the past several decades. [2][3][4][5][6][7][8][9][10] Chipman and Floridis 2) measured the distribution of aluminum between liquid iron and silver, and combined these data to extrapolate activate coefficient γAl of . Using Knudsen cell-mass spectrometry, Belton and Fruhan 6) directly measured the activity of aluminum in liquid Fe-Al alloys up to 20.29 mass% Al at 1 873 K. Ichise et al 7) also used the same experimental technique to determine the activity of aluminum in liquid Fe-Al alloys up to 8.21 mass% Al in the temperature range from 1 673 K to 1 873 K. They reported the values of , , and in liquid iron as 0.049, 6.4, 0.017 and 8.2 at 1 873 K, respectively.…”

“…Using Knudsen cell-mass spectrometry, Belton and Fruhan 6) directly measured the activity of aluminum in liquid Fe-Al alloys up to 20.29 mass% Al at 1 873 K. Ichise et al 7) also used the same experimental technique to determine the activity of aluminum in liquid Fe-Al alloys up to 8.21 mass% Al in the temperature range from 1 673 K to 1 873 K. They reported the values of , , and in liquid iron as 0.049, 6.4, 0.017 and 8.2 at 1 873 K, respectively. Jacobson and Mehrotra 8) determined the activities of Fe and Al in Fe-Al alloys at 1 573 K using the ion-currentratio technique in a high-temperature Knudsen cell-mass spectrometry, and reported the values of and at 1 573 K as 0.016 and 0.019. In 2007, Kim et al 9) investigated the thermodynamics of aluminum in liquid iron in the temperature range of 1 873 K-1 973 K and reported the values of as 0.066, 0.069 and 0.071 at 1 873 K, 1 923 K and 1 973 K. Recently, Zaitsev et al 10) reported that three associative molecules as FeAl, FeAl2, and Fe2Al5 could exist in Fe-Al binary melts based on the experimental results using Knudsen cell-mass spectrometer and an integral variant of the effusion method under the condition of super high oil-free vacuum.…”

Relative Partial Molar Gibbs Energy of Magnesium Component Substituted into Zinc Site in the Mg-Zn Binary Compounds

“…Regading nonstoichimetric intermetallic compounds, the activities of components, a i , for PbTe, 2) PdTe 2 , 2) NiSb, 3) RhTe 2Àx 4) and FeAl 5) were measured by the vapor pressure method. Also, the formation energy of the vacancy in FeAl was measured by the positron annihilation spectroscopy.…”