Thermal Expansion of Alloys from the Al-Fe System

Śmiglewicz, A.; Jabłońska, Magdalena

doi:10.4028/www.scientific.net/ddf.326-328.587

Cited by 4 publications

(4 citation statements)

References 3 publications

(4 reference statements)

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“…• C) [6]. The recorded thermal effects on the dilatometric curve are inconsistent with the anticipated transformations in the Fe-Al phase equilibrium system.…”

Section: Discussionmentioning

confidence: 77%

“…Experimental as well as theoretical studies [1][2][3][4][5] suggest that knowledge about degree and type of order and defects in iron aluminides is very important. The knowledge on the phase transformations in these alloys including the information about order-disorder transition is very valid from the point of view of obtained mechanical and physical properties of alloys of the Fe-Al system [6]. The results are the valid supplement for development knowledge of these alloys.…”

Section: Introductionmentioning

confidence: 80%

“…The investigated material containing 58 at.% Al is characterized by a lower (while compared to the alloys with lower aluminum contents [6]) average linear thermal expansion coefficient, equal to 15.90 × 10 The dilatometric curve for the alloy 58Al is shown in Fig. 2.…”

Section: Resultsmentioning

confidence: 99%

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Study of the Structure and Thermal Properties of Intermetallics from Fe-Al System

2016

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Selected alloys from the Fe-Al system are included into a group of materials on a matrix of intermetallic phases, and characteristic properties result from it and they constitute a resultant between properties of superalloys and ceramic materials. These materials are characterized, inter alia, by capacity for operating at elevated temperatures, as well as good strength related properties and resistance to oxidation and corrosion at an increased temperature. In addition, a low cost of alloy components and low density caused by aluminium content are their advantages. The basic reasons limiting application of alloys from Fe-Al system as construction materials are current: their low plasticity at room temperature, propensity for brittle cracking, low resistance at elevated temperature, and insufficient creep resistance. This unfavorable characteristics may be improved by adding to alloys such elements as molybdenum, zirconium, carbon, and boron, reducing the size of grains, increasing their purity, stabilizing the solid solution, and causing changes in phase transition temperatures. These alloys may be successfully manufactured by classic melting accompanied with refinement remelting, and ingot casting. In spite of additions and microadditions, grain refining of the initial structure of ingots manufactured in that way is rarely achieved, mainly because of low castability and high casting contraction. In this work we presented the results of structure analysis and investigations of the dilatometric study alloys on the base Fe-Al system. The alloys were obtained by classic casting technique. The studies were carried out on samples after casting and annealing. The phase transformation and thermal expansion investigations of the alloys from Fe-Al system with concentration of Fe-58Al were presented. The linear thermal expansion α was calculated by standard method. The α coefficient was noticed as a temperature function.

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“…• C) [6]. The recorded thermal effects on the dilatometric curve are inconsistent with the anticipated transformations in the Fe-Al phase equilibrium system.…”

Section: Discussionmentioning

confidence: 77%

Section: Introductionmentioning

confidence: 80%

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Study of the Structure and Thermal Properties of Intermetallics from Fe-Al System

2016

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“…causes that the brittleness phenomenon becomes limited. It allows to achieve the beneficial effect of hardening and to elevate the plasticity at the same time decreasing the level of ordering and protecting against corrosion in hydrogen atmosphere [6][7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Structural Characterization of FeAl28Cr5 Alloy Deformed in the Hot Torsion Process

Bednarczyk

Jabłońska

2016

SSP

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Current research in the field of iron aluminides are directed towards to understand the structural phenomena occurring during plastic deformation of these alloys. The obtained results of the study and collected informations will be used to determine the description of the structural changes taking place during hot deformation of Fe ̶Al alloys. The article presents the results of the study of the alloy FeAl28Cr5 deformed by hot torsion in temperature range of 800÷1100°C and a strain rate of 0.1 s-1. The analysis of the structure of the alloy FeAl28Cr5 allowed to reveal changes caused by dynamic processes of deformation. The results of torsion tests show the possibility to obtain a fine-grained structure with of parameters of the processes (T=1000°C, 1100°C) and strain of ε=40. After deformation at strain of (ε=40) the structure consists of fine grains with a misorientation angle higher than 15°, and the average grain size diameter D=28.5 micrometers. Deformation at a temperature of T=1000°C and 1100°C is accompanied by superplastic flow effect.

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Dissipative properties of Al-(Fe, Cr) vacuum coatings with different composite structures

Skorodzievskii

Ustinov

Поліщук

et al. 2019

Surface and Coatings Technology

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Thermal Expansion of Alloys from the Al-Fe System

Cited by 4 publications

References 3 publications

Study of the Structure and Thermal Properties of Intermetallics from Fe-Al System

Study of the Structure and Thermal Properties of Intermetallics from Fe-Al System

Structural Characterization of FeAl28Cr5 Alloy Deformed in the Hot Torsion Process

Dissipative properties of Al-(Fe, Cr) vacuum coatings with different composite structures

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