Oxide Dispersion Strengthened Steels

Ukai, Shigeharu; Oono, Naoko; Ohtsuka, Satoshi

doi:10.1016/b978-0-12-803581-8.11718-7

Cited by 9 publications

(2 citation statements)

References 193 publications

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“…On the other hand, Al-based composites strengthened with ceramic particles prepared by the mechanical alloying process provides a combination of properties of both the metallic matrix and the ceramic reinforcement components resulting in improved physical and mechanical properties of the composite. Alumina particles were chosen as the reinforcement for several reasons, such as the homogeneous properties in various directions and the good formability of these materials [1][2][3][4], chemically inert with Al, applicability at high temperatures and benefits of resistance to creep [5]. Also the presence of Al 2 O 3 particles in a metal matrix improves the hardness of this material at room and at higher temperatures [6].…”

Section: Introductionmentioning

confidence: 99%

Microstructure and mechanical behavior of Al-xMg/5Al₂O₃nanostructured composites

Chermahini

Safari

2022

Mater. Res. Express

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The effect of Mg content and milling time were investigated on the microstructure and microhardness values of Al-xMg/5Al2O3 (x = 0, 4, 8 and 12 wt %) nanostructured composite prepared via high energy milling technique. XRD results showed an acceleration of alloying process and formation of Al (Mg) ss by enhancing percentage of Mg element. Also, by increase in Mg percentage the grain size reduction was more considerable during milling treatment. Additionally, increment of the Mg content up to 12 wt%, causes the increase in micro-strain of the samples (from 0.31 to 0.82%). Increase in Mg concentration accelerates the mechanical milling process. According to SEM results a coaxial and circular morphology with a uniform distribution of powder particles has been formed. Up to 12 wt% (for each milling time), significant increase in microhardness (215 HV) was carried out due to solid solution hardening and crystallite refinement. From 10 to 15 h, a slight increase in microhardness up to 218 HV can be observed.

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Section: Introductionmentioning

confidence: 99%

Microstructure and mechanical behavior of Al-xMg/5Al₂O₃nanostructured composites

Chermahini

Safari

2022

Mater. Res. Express

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“…The distribution of fine oxide particles is the key feature of these materials for controlling the microstructure during processing and service. Generally, recrystallization of ODS alloys has been observed to be affected seriously by fine dispersion of oxide particle and retarded to high temperatures near melting point of the alloy [6,7]. Though previous studies arguing the recrystallization of copper start in a low temperature of ~0.3T m lower than other metals [8,9], recent reports show that copper can recrystallize even at room temperature (~0.2T m ) [10,11].…”

Section: Introductionmentioning

confidence: 99%

Recrystallization of cold rolled oxide dispersion strengthened copper during room temperature annealing

Aghamiri

Ukai

Oono

et al. 2019

Journal of Alloys and Compounds

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Static discontinuous recrystallization was studied during room temperature annealing of a newly designed 80% room temperature rolled oxide dispersion strengthened copper. At early stages of annealing, fine new oriented nanosized/submicron grains were recrystallized in the unique matrix of single brassoriented deformed grain. Upon longer annealing time up to 14 months, the size, area fraction and number density of the recrystallized grains increased significantly along with changing the crystallographic textures. The analysis of misorientation angle distribution of boundaries indicated transformation of low angle boundaries to high angle boundaries results in nucleation of recrystallized grains by significant contribution of static recovery. Furthermore, the constant level of mechanical hardness after recrystallization was interpreted by the balance between grain size hardening, oxide particle hardening and strain hardening.

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Mechanisms of plastic deformation and fracture in coarse grained Fe–10Al–4Cr–4Y2O3 ODS nanocomposite at 20–1300°C

Gamanov¹,

Luptáková²,

Bořil³

et al. 2023

Journal of Materials Research and Technology

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Oxide Dispersion Strengthened Steels

Cited by 9 publications

References 193 publications

Microstructure and mechanical behavior of Al-xMg/5Al₂O₃nanostructured composites

Microstructure and mechanical behavior of Al-xMg/5Al₂O₃nanostructured composites

Recrystallization of cold rolled oxide dispersion strengthened copper during room temperature annealing

Mechanisms of plastic deformation and fracture in coarse grained Fe–10Al–4Cr–4Y2O3 ODS nanocomposite at 20–1300°C

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Oxide Dispersion Strengthened Steels

Cited by 9 publications

References 193 publications

Microstructure and mechanical behavior of Al-xMg/5Al2O3nanostructured composites

Microstructure and mechanical behavior of Al-xMg/5Al2O3nanostructured composites

Recrystallization of cold rolled oxide dispersion strengthened copper during room temperature annealing

Mechanisms of plastic deformation and fracture in coarse grained Fe–10Al–4Cr–4Y2O3 ODS nanocomposite at 20–1300°C

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Microstructure and mechanical behavior of Al-xMg/5Al₂O₃nanostructured composites

Microstructure and mechanical behavior of Al-xMg/5Al₂O₃nanostructured composites