Thin wall tubes with Fe3Al/SS316L graded structure obtained by using laser engineered net shaping technology

Durejko, T.; Ziętala, Michał; Polkowski, Wojciech; Czujko, Tomasz

doi:10.1016/j.matdes.2014.07.011

Cited by 97 publications

(37 citation statements)

References 16 publications

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“…In recent years intermetallic based alloys from transition metals -aluminum binary systems (e.g. Ni-Al [12][13][14][15][16][17][18] or Fe-Al [19][20][21][22][23][24][25]), so called aluminides, have gathered a lot of attention from both scientific and industrial environments in terms of their high temperature applications. Fe-Al intermetallic alloys exhibit a high resistance towards oxidation, carbonization and corrosion at elevated temperature, that make them competitive to conventional high temperature materials.…”

Section: Introductionmentioning

confidence: 99%

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The Effect of Nanometric α-Al2O3 Addition on Structure and Mechanical Properties of Feal Alloys Fabricated by Lens Technique

Łazińska¹,

Durejko²,

Polkowski³

2017

Archives of Metallurgy and Materials

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Results of the first principle study on a fabrication of FeAl intermetallic based alloy with an addition of nanometric αAl 2 O 3 (n-Al 2 O 3 ) particles by the LENS method and a subsequent characterization of the as received materials' structure and properties, are shown in the present work. A series of samples were manufactured using LENS technique while a control of temperature and the size of melted metal pool.The presence of ceramics nanoparticles was not directly confirmed by microscopy observations. Neither aluminum nor oxygen content was not elevated in the material with n-Al 2 O 3 content. Although, indirect methods revealed influence of n-Al 2 O 3 addition on the manufactured elements structure. Analyses of porosity has shown that addition of 2% vol. n-Al 2 O 3 significantly decreases this feature (~1%), as compared to the reference material made of pure FeAl intermetallic alloy (~5%). The addition of n-Al 2 O 3 causes an increase of grain size in Fe40Al intermetallic alloy. An oxidation resistance has been also improved what was associated to the n-Al 2 O 3 addition. Four times lower increase of samples mass was noticed for sample with the n-Al 2 O 3 addition as compared to the pure Fe40Al intermetallic alloy.

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Section: Introductionmentioning

confidence: 99%

“…[5,[13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31]37]. However, these methods are complex, inefficient, energy-consuming and generates high production costs.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Nanometric α-Al2O3 Addition on Structure and Mechanical Properties of Feal Alloys Fabricated by Lens Technique

Łazińska¹,

Durejko²,

Polkowski³

2017

Archives of Metallurgy and Materials

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“…Hence, the idea of using LENS technology to produce some parts of the radiator heating device from the Fe-Al alloy and to cover their surfaces with thin layers of Al 2 O 3 in high-temperature oxidation (Figure 2) was proposed [23]. It is important to investigate the behavior of materials formed in this manner in high-temperature oxidation conditions.…”

Section: Introductionmentioning

confidence: 99%

High-Temperature Oxidation of Fe3Al Intermetallic Alloy Prepared by Additive Manufacturing LENS

Łyszkowski

2015

Materials

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The isothermal oxidation of Fe-28Al-5Cr (at%) intermetallic alloy microalloyed with Zr and B (<0.08 at%) in air atmosphere, in the temperature range of 1000 to 1200 °C, was studied. The investigation was carried out on the thin-walled (<1 mm) elements prepared by Laser Engineered Net Shaping (LENS) from alloy powder of a given composition. Characterization of the specimens, after the oxidation, was conducted using X-ray diffraction (XRD) and scanning electron microscopy (SEM, with back-scatter detector (BSE) and energy-dispersive X-ray spectroscopy (EDS) attachments). The investigation has shown, that the oxidized samples were covered with a thin, homogeneous α-Al2O3 oxide layers. The intensity of their growth indicates that the material lost its resistance to oxidation at 1200 °C. Structural analysis of the thin-walled components’ has not shown intensification of the oxidation process at the joints of additive layers.

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“…heat resistant steels or superalloys), intermetallics have been considered as potential substitutes in many high temperature applications. After many years of research the problematic ductility of aluminides has been improved (mainly by a proper selection of alloying elements [1,2]) to the level that makes them suitable for both conventional and non-conventional successive processing including a powder metallurgy [3,4,5,6], a hot deformation [7], a thermal spraying [8,9] or a laser assisted additive manufacturing techniques [10]. Nevertheless, specific structure and properties of aluminides generate special technological requirements that usually results with inevitable problems upon a fabrication and a processing of these materials.…”

Section: Introductionmentioning

confidence: 99%

Differential speed rolling of Ni3Al based intermetallic alloy – Effect of applied processing on structure and mechanical properties anisotropy

Polkowski¹,

Pęczek²,

Zasada³

et al. 2015

Materials Science and Engineering: A

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Thin wall tubes with Fe3Al/SS316L graded structure obtained by using laser engineered net shaping technology

Cited by 97 publications

References 16 publications

The Effect of Nanometric α-Al2O3 Addition on Structure and Mechanical Properties of Feal Alloys Fabricated by Lens Technique

The Effect of Nanometric α-Al2O3 Addition on Structure and Mechanical Properties of Feal Alloys Fabricated by Lens Technique

High-Temperature Oxidation of Fe3Al Intermetallic Alloy Prepared by Additive Manufacturing LENS

Differential speed rolling of Ni3Al based intermetallic alloy – Effect of applied processing on structure and mechanical properties anisotropy

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