2012
DOI: 10.4028/www.scientific.net/ddf.326-328.573
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Study of Phase Transformation in Alloys of the Al-Fe System

Abstract: In this paper, phase transformation in alloys of the Al-Fe and Al-Fe-Cr systems was investigated. The alloys were prepared by melting and gravity casting. The studies of phase transformation were carried out on samples after casting and annealing, using the differential thermal analysis (DTA) and dilatometric method. The knowledge on the phase transformations in these alloys including the information about order-disorder transition is very important from the point of view of obtained mechanical and physical pr… Show more

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Cited by 9 publications
(6 citation statements)
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“…As it is commented by the author of [16], it indicates the presence of a second-order transition between β and γ. Additional confirmation for this assumption can be the presence of thermal effect occuring also during cooling (570°C) that shows good compatibility with order-disorder transition observed in alloys from Ni-Al-Cr or Fe-Al systems [17][18][19][20].…”
Section: Methodsmentioning
confidence: 65%
“…As it is commented by the author of [16], it indicates the presence of a second-order transition between β and γ. Additional confirmation for this assumption can be the presence of thermal effect occuring also during cooling (570°C) that shows good compatibility with order-disorder transition observed in alloys from Ni-Al-Cr or Fe-Al systems [17][18][19][20].…”
Section: Methodsmentioning
confidence: 65%
“…The work rolls with diameter of 67 mm rotated at the speed from 40 to 150 rpm. After heating to the rolling temperature (ranging from 1160 to 1240 °C), which corresponds to a range ordering decline [14] the material was rolled flatways to 1/3 of the thickness, using the relatively heavy height reductions (approx. 11 -12 -14 -16 -19 -19 -19 %).…”
Section: Methodsmentioning
confidence: 99%
“…In addition, the effect of the ordering process seems to be an important factor as well. According to the phase equilibrium system [19] and results of own studies [20], the annealing was carried out in field of ordered solid solution of DO 3 type, where the ordering process may have dominance over the vacancy eliminated process. After low-temperature annealing for Fe-28Al, formation of dislocation networks has been observed, exposure of which evidences a tendency to lower free energy, connected with the ordering process.…”
Section: Applied Crystallography XXIImentioning
confidence: 99%