Technological plasticity studies of the FeAl intermetallic phase-based alloy

Kupka, M.

doi:10.1016/j.intermet.2003.11.001

Cited by 19 publications

(18 citation statements)

References 23 publications

(19 reference statements)

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“…Similar values of activation energy of plastic flow were obtained in Ref. [36] for FeAl based alloy. However, a recent review by Jordon et al [37] showed that the activation energy of iron aluminides lies in the range of 250 -300 kJ/mol.…”

Section: Thermal Activation Parameterssupporting

confidence: 87%

Indentation creep studies of iron aluminide intermetallic alloy

Sharma¹,

Ramanujan

Kutty³

et al. 2005

Intermetallics

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Indentation creep behaviour of iron aluminide intermetallic (Fe-28Al -3Cr) was studied in the temperature range of 843 -963 K. The hardness and the plasticity parameter were also calculated from room temperature to 1273 K. The variation of hardness with time showed that the stress exponent ðnÞ was weakly dependent on temperature. Thermal activation parameter-activation area and energy were also calculated to identify the creep mechanism. The activation energy for high temperature creep was found to be in good agreement with that for selfdiffusion of pure iron and in excellent agreement with previous studies. These values of n, activation area and activation energy were found to be consistent with dislocation climb as the rate controlling creep mechanism. Conventional creep curves were also derived from hardness values.

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Section: Thermal Activation Parameterssupporting

confidence: 87%

Indentation creep studies of iron aluminide intermetallic alloy

Sharma¹,

Ramanujan

Kutty³

et al. 2005

Intermetallics

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“…2b-d show the occurrence of recrystallized grains in these samples and all flow curves show intensive softening at the end of the final stroke. Furthermore, the oscillating flow stress curves of samples deformed at the highest deformation rate of 20 s K1 are an indication for DRX as proposed by Luton and Sellars [15] and observed in Fe-Al alloys by Kupka [16]. Nevertheless, the oscillations are small and may thus be due to DRX in only a small volume fraction of the sample.…”

Section: Discussionsupporting

confidence: 62%

Hot deformation behavior of a Fe3Al-binary alloy in the A2 and B2-order regimes

et al. 2005

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“…It is even more complicated than casting due to limited plasticity even at the temperatures above 1000 C and due to cracking by thermally-induced stresses built up when a hot material comes into contact with the roll or forging die [9]. There are some successful results showing the possibility of hot forming with the use of a special protective can [9] or superplastic forming of certain FeAl-based alloys at the temperature of 850e950 C and a strain rate of 1 s À1 [10].…”

Section: Introductionmentioning

confidence: 99%