High-temperature oxidation behavior of nano-structured ferritic oxide dispersion-strengthened alloys

Kim, Jeoung Han; Kim, Kyong Min; Byun, Thak Sang; Lee, Jun Young; Park, Chan Hee

doi:10.1016/j.tca.2014.01.010

Cited by 19 publications

(4 citation statements)

References 19 publications

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“…6, adding 0.05 wt% Y2O3 reduced the oxidation rate of the LPBF-processed IN738LC component. The result is consistent with some previous reports for Fe-Cr alloy [35] and austenitic stainless steel [36]. In the study of Stringer et al [37], rare earth element oxide particles such as Y2O3, CeO2, etc., can act as nucleation centers for oxides, especially Cr2O3, thereby promoting the formation of Cr2O3.…”

Section: Effects Of Y2o3 On the Oxidation Behaviorsupporting

confidence: 92%

“…Pérez [29] suggested that fine grains were beneficial for oxidation resistance due to increased nucleation of Al2O3 particles, which led to the formation of a pure Al2O3 scale and accordingly increased the oxidation resistance. Generally, the improvement of oxidation resistance by refined grains is widely reported [30,31], which is primarily due to the acceleration of diffusion of some protective elements to form oxide scales related to more grain boundaries. In the present study, the addition of Y2O3 led to coarse grains, which probably was the cause of the increased oxidation rate, as shown in Fig.…”

Section: Effects Of Y2o3 On the Microstructure Before Oxidationmentioning

confidence: 99%

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Effects of Y2O3 nanoparticles on the high-temperature oxidation behavior of IN738LC manufactured by laser powder bed fusion

Guo

Liu

et al. 2020

Corrosion Science

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Section: Effects Of Y2o3 On the Oxidation Behaviorsupporting

confidence: 92%

Section: Effects Of Y2o3 On the Microstructure Before Oxidationmentioning

confidence: 99%

Effects of Y2O3 nanoparticles on the high-temperature oxidation behavior of IN738LC manufactured by laser powder bed fusion

Guo

Liu

et al. 2020

Corrosion Science

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“…Processing NFA-1 involved an alternative path that involved including Y in the melt prior to gas atomization and rapid solidification. Many small lab heats of precursor NFA, with different processing and compositional variants, were first explored to identify the best practice path [3,10,[13][14][15][16]. This culminated in the final production of an extruded and crossrolled heat known as 14YWT-PM2 (PM2) [17].…”

Section: Introductionmentioning

confidence: 99%

Tensile deformation and fracture properties of a 14YWT nanostructured ferritic alloy

Alam

Pal

Fields

et al. 2016

Materials Science and Engineering: A

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A new larger heat of a 14YWT nanostructured ferritic alloy (NFA), FCRD NFA-1, was synthesized by ball milling FeO and argon atomized Fe-14Cr-3W-0.4Ti-0.2Y (wt.%) powders, followed by hot extrusion, annealing and cross rolling to produce a 12.5mmthick plate. NFA-1 contains a bimodal size distribution of pancake-shaped, mostly very fine scale, grains. The as-processed plate also contains a large population of microcracks running parallel to its broad surfaces. The small grains and large concentration of Y-Ti-O nano-oxides (NOs) result in high strength up to 800°C. The uniform and total elongations range from ≈ 1 to 8%, and ≈ 10 to 24%, respectively. The strength decreases more rapidly above ≈ 400°C and transitions to largely viscoplastic creep by ≈ 600°C. While the local fracture mechanism is ductile-dimple microvoid nucleation, growth and coalescence, perhaps the most notable feature of tensile deformation behavior of NFA-1 is the occurrence of periodic delamination, manifested as fissures on the fracture surfaces.

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“…In the scale substrate system, Z c is not only governed by the composition, mechanical properties of the base metal and the oxide scale, but also by the addition of rare earth elements such as Y, Hf, etc. [52], by dispersing fine particles with the help of mechanically alloying [53] or by internal oxidation and by noble alloying elements, e.g. Pt, Ro, Au, etc [54].…”

Section: Wear Responsementioning

confidence: 99%

Influence of various counter-bodies on the sliding friction and wear response of M50 steel

Toppo

Roy

2022

Ironmaking & Steelmaking

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The primary aim of the present investigation is to evaluate the sliding wear response of M50 steel against three different counter-bodies as function of applied load and sliding velocity. The investigation is essentially undertaken to understand the sliding friction of hybrid bearing and ordinary bearing used in spacecraft and aeroengine. Towards that purpose, M 50 steel was made to slide against three different counter-bodies such as M50 steel, 52100 steel and Si 3 N 4 , at three different applied loads and at three different sliding velocities. The results show that the friction coefficient of M50 steel decreases with the applied load and the sliding velocity against all types of counter-bodies. The wear rate of M50 steel against Si 3 N 4 counter-body increases with the applied load and the sliding velocity. In contrast, the wear rate is generally independent of the applied load and the sliding velocity against 52100 steel and under self-mating condition.

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High-temperature oxidation behavior of nano-structured ferritic oxide dispersion-strengthened alloys

Cited by 19 publications

References 19 publications

Effects of Y2O3 nanoparticles on the high-temperature oxidation behavior of IN738LC manufactured by laser powder bed fusion

Effects of Y2O3 nanoparticles on the high-temperature oxidation behavior of IN738LC manufactured by laser powder bed fusion

Tensile deformation and fracture properties of a 14YWT nanostructured ferritic alloy

Influence of various counter-bodies on the sliding friction and wear response of M50 steel

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