Development of advanced Fe–Al–O ODS alloy microstructure and properties due to heat treatment

Fintová, Stanislava; Kuběna, Ivo; Luptáková, Natália; Jarý, Milan; Šmíd, Miroslav; Stratil, Ludek; Siska, Filip; Svoboda, Jiřı́

doi:10.1557/jmr.2020.278

Cited by 7 publications

(4 citation statements)

References 13 publications

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“…The increase of the area fraction of the particles was observed; the particles occupied nearly 9.5 % of the microstructure area fraction. The reason for the measured increase is discussed in detail in [14].…”

Section: Microstructural Analysismentioning

confidence: 96%

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Creep properties of heat-treated Fe-Al-O ODS alloy

Fintová¹,

Kuběna²,

Jarý³

et al. 2021

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Three different heat treatment regimens were used to modify the microstructure of Fe-Al-O ODS alloy prepared via powder metallurgy. Creep testing at 60 % of alloy state proof stress revealed the highest time to fracture for the bimodal coarse-grained microstructure of the batch heat-treated at 1200 • C for 24 h. Heat treatment at 1100 • C did not significantly influence the creep resistance of the alloy at 60 % of proof stress creep loading. However, the highest creep resistance was achieved by the strongest hindering of dislocations motion, which can be achieved by decreasing the grain size and increasing the density of dispersed particles, which was the case of the basic state material. Creep damage occurred in the specimens' whole volume, and it was characterized by the growth and coalescence of intergranular cavities. K e y w o r d s : creep, mechanical alloying, powder consolidation, scanning electron microscopy (SEM), electron backscattering diffraction (EBSD)

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Section: Microstructural Analysismentioning

confidence: 96%

“…PS and UTS decrease with time and tempe-rature of heat treatment. More details are provided in [14].…”

Section: Microstructural Analysismentioning

confidence: 99%

Creep properties of heat-treated Fe-Al-O ODS alloy

Fintová¹,

Kuběna²,

Jarý³

et al. 2021

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“…Unfortunately, studies regarding the heat-treated IN718/Y 2 O 3 material system have not been presented. There are only a handful of studies related to the heat treatment of oxide-reinforced Ni-based alloys [17,18] while most of the studies are for Fe-based alloys [19][20][21] . As such, this study will provide a comprehensive comparison of the microstructures and mechanical properties between the Y 2 O 3 -reinforced IN718 Ni-based alloys and the monolithic IN718 in the as-printed state as well as after each stage of the heat treatment.…”

Section: Introductionmentioning

confidence: 99%

A survey of additive manufacturing reviews

Zhai¹,

Jin²,

Jiang³

2022

Mater Sci Add Manuf

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Nowadays, additive manufacturing (AM) technologies have been widely used in construction, medical, military, aerospace, fashion, etc. The advantages of AM (e.g., more design freedom, no restriction on the complexity of parts, and rapid prototyping) have attracted a growing number of researchers. Increasing number of papers are published each year. Until now, thousands of review papers have already been published in the field of AM. It is, therefore, perhaps timely to perform a survey on AM review papers so as to provide an overview and guidance for readers to choose their interested reviews on some specific topics. This survey gives detailed analysis on these reviews, divides these reviews into different groups based on the AM techniques and materials used, highlights some important reviews in this area, and provides some discussions and insights.

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“…Powder metallurgy processes very convenient to incorporate the required amount of oxides into the ODS material. In the first step, powders are prepared by mechanical alloying [7]. Then in the second step, they can be consolidated by several methods such as forging or hot rolling.…”

Section: Introductionmentioning

confidence: 99%

Processing and Properties of Fe-10al-4cr-4y2o3 Oxide Dispersion Strengthened (Ods) Alloy Consolidated by Hot Rotary Swaging

Krátká

Benč

2022

METAL 2022 Conference Proeedings

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This study deals with new generation of ODS alloys strengthened with a high-volume fraction of Y-nanooxides of 4 %. The ODS alloy is produced using powder metallurgy consisting of mechanical alloying of input powders followed by hot consolidation of canned powder using rotary swaging technology and secondary recrystallization to provoke coarse-grained microstructure. We focus on the microstructure characterization after individual processing steps and measurement of mechanical properties after consolidation and after secondary recrystallization at room temperature and 1100 °C. The mechanical properties of the studied ODS alloy are compared with those of a conventionally produced alloy as INCONEL718.

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Development of advanced Fe–Al–O ODS alloy microstructure and properties due to heat treatment

Abstract: Abstract

Cited by 7 publications

References 13 publications

Creep properties of heat-treated Fe-Al-O ODS alloy

Creep properties of heat-treated Fe-Al-O ODS alloy

A survey of additive manufacturing reviews

Processing and Properties of Fe-10al-4cr-4y2o3 Oxide Dispersion Strengthened (Ods) Alloy Consolidated by Hot Rotary Swaging

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