Evolution of deformation and annealing textures in Incoloy 800H/HT via different rolling paths and strains

Akhiani, Hamed; Nezakat, Majid; Szpunar, Jerzy A.

doi:10.1016/j.msea.2014.07.035

Cited by 38 publications

(13 citation statements)

References 28 publications

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“…Due to their high temperature oxidation and corrosion resistance combined with their high strength, the HR3C and the IN-800HT austenitic stainless steels (ASS) can be employed in USC units [8,9]. With a density of 8 mg/cm 2 , IN-800HT is a modified version of IN-800 containing more Ni, Si, Mn and Ti [10,11]. This material is well-known to resist to stress corrosion and like for the HR3C steel, the presence of chromium in these alloys allows the formation of a protective oxide layer while the presence of nickel improves the stability of the oxide formed [8,10,12].…”

Section: Introductionmentioning

confidence: 99%

Characterisation of aluminium diffusion coatings elaborated on austenitic stainless steels and on ferritic-martensitic steels

Boulesteix

Pedraza

2018

Surface and Coatings Technology

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Slurry aluminide coatings were elaborated on IN-800HT and HR3C austenitic stainless steels (ASS) and on P92 ferritic-martensitic steels. The thermal treatments conducted in Ar enabled the melting of Al and the high temperature synthesis with the substrate elements to result in an aluminium diffusion coating. Whether for the ferritic-martensitic or the austenitic stainless steels, the coatings were formed by the simultaneous Al inward diffusion into the steel matrix and the outward diffusion of Fe (and Ni for the ASS) on both steel substrates. As a result, the coatings exhibited a B2-(Fe,Ni)Al phase for the ASS and B2-FeAl phase for the P92 substrate. A reduction of the grain size after annealing was noticed for the ASS but their microstructures remained mostly austenitic. However, a significant increase of the grain size occurred in the P92 steel with a transformation from the initial tempered martensitic structure to an austenitic structure. The microhardness of the ASS did not change significantly whereas for P92, a large increase occurred.

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Section: Introductionmentioning

confidence: 99%

Characterisation of aluminium diffusion coatings elaborated on austenitic stainless steels and on ferritic-martensitic steels

Boulesteix

Pedraza

2018

Surface and Coatings Technology

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“…In this regard, this alloy has been widely used in petrochemical processing, industrial heating and nuclear reactor [14]. The high chromium concentration destabilizes the solution by generating complex chromium carbide of type Cr 23 C 6 between 400 and 900 C [15].…”

Section: Introductionmentioning

confidence: 99%

Research on the hot deformation behavior of a Fe–Ni–Cr alloy (800H) at temperatures above 1000 °C

Cao

2015

Journal of Nuclear Materials

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“…These challenges include fluctuations in relative size needed to resolve AGG within a given region of interest [24], full discretization of AGG amidst a population of continuously growing grains within a changing global grain size distribution [25], and the practicality of acquiring a reasonable amount of observations within a limited thermal range to support quantification [20]. Additionally, while texture is not a central emphasis in this work, it is noteworthy that other studies have shown that both grain growth and recrystallization kinetics can be additionally influenced by grain orientation and strain path [26][27][28][29]. In this work, the effect of varying thermal and mechanical strain routes are examined specifically in relation to grain growth.…”

Section: Methodsmentioning

confidence: 99%

“…Additionally, while texture is not a central emphasis in this work, it is noteworthy that other studies have shown that both grain growth and recrystallization kinetics can be additionally influenced by grain orientation and strain path [26][27][28][29]. In this work, the effect of varying thermal and mechanical strain routes are examined specifically in relation to grain growth.…”

Section: Introductionmentioning

confidence: 99%

Emergence and Progression of Abnormal Grain Growth in Minimally Strained Nickel-200

Underwood

Madison

Thompson

2017

Metals

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Grain boundary engineering (GBE) is a thermomechanical processing technique used to control the distribution, arrangement, and identity of grain boundary networks, thereby improving their mechanical properties. In both GBE and non-GBE metals, the phenomena of abnormal grain growth (AGG) and its contributing factors is still a subject of much interest and research. In a previous study, GBE was performed on minimally strained (ε < 10%), commercially pure Nickel-200 via cyclic annealing, wherein unique onset temperature and induced strain pairings were identified for the emergence of AGG. In this study, crystallographic segmentation of grain orientations from said experiments are leveraged in tandem with image processing to quantify growth rates for abnormal grains within the minimally strained regime. Advances in growth rates are shown to vary directly with initial strain content but inversely with initiating AGG onset temperature. A numeric estimator for advancement rates associated with AGG is also derived and presented.

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Evolution of deformation and annealing textures in Incoloy 800H/HT via different rolling paths and strains

Cited by 38 publications

References 28 publications

Characterisation of aluminium diffusion coatings elaborated on austenitic stainless steels and on ferritic-martensitic steels

Characterisation of aluminium diffusion coatings elaborated on austenitic stainless steels and on ferritic-martensitic steels

Research on the hot deformation behavior of a Fe–Ni–Cr alloy (800H) at temperatures above 1000 °C

Emergence and Progression of Abnormal Grain Growth in Minimally Strained Nickel-200

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