Ion-induced spinodal-like decomposition of Fe-Ni-Cr invar alloys

Garner, F.А.; Brager, H.R.; Dodd, R.A.; Lauritzen, T.

doi:10.1016/0168-583x(86)90020-0

Cited by 40 publications

(7 citation statements)

References 11 publications

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“…For example, the ferrite can decompose into a series of meta-stable and thermodynamically stable phases, whilst the austenite has often been stated to be unaffected [2,4,6]. However, phase reactions can also occur in the austenite, increasing the volume fraction of secondary phase products in the microstructure [7][8][9][10][11][12][13]. Components made with large wall thicknesses, therefore, usually contain intermetallic phases due to variations in cooling rates after high temperature treatments, with the core of components typically containing large volume fractions [14,15].…”

Section: Introductionmentioning

confidence: 99%

Correlative EBSD and SKPFM characterisation of microstructure development to assist determination of corrosion propensity in grade 2205 duplex stainless steel

Örnek

Engelberg

2015

J Mater Sci

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Correlative electron backscatter diffraction (EBSD) and scanning Kelvin probe force microscopy (SKPFM) analysis has been carried out to characterise microstructure development and associated corrosion behaviour of as-received and 750°C heat-treated grade 2205 duplex stainless steel. High-resolution EBSD analysis revealed the presence of r-and v-phase, secondary austenite, Cr 2 N, and CrN after ageing treatment. SKPFM Volta potential measurements confirmed the formation of discrete reactive sites, indicating local corrosion propensity in the microstructure. Cr 2 N, r-phase, and inter-granular v-phase had the largest net cathodic activity, followed by CrN and intra-granular v-phase showing medium electrochemical activity, with ferrite and austenite (including secondary austenite) showing net anodic activity. Corrosion screening confirmed selective corrosion of ferrite in the as-received and 750°C-aged conditions with the corrosion propensity of secondary phases staying in-line with SKPFM observations. Stress corrosion micro-cracks were also observed and are discussed in light of microstructure corrosion propensity.

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Section: Introductionmentioning

confidence: 99%

Correlative EBSD and SKPFM characterisation of microstructure development to assist determination of corrosion propensity in grade 2205 duplex stainless steel

Örnek

Engelberg

2015

J Mater Sci

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“…However, the Zr-Sn binary phase diagram does not exhibit spinodal decomposition and so further research is necessary to determine if spinodal decomposition is possible in more complex Sn-containing Zr alloys, both during exposure to irradiation (where the diffusion rates of solute species will be hugely accelerated) and during very long-term thermal ageing. However, spinodal decomposition is well known to make an important contribution to the properties of other nuclear alloys [28][29][30][31], and so this observation in these Zr alloys should be investigated as it can have important implications for the prediction of the mechanical properties in-service.…”

Section: Main Textmentioning

confidence: 99%

APT and TEM study of behaviour of alloying elements in neutron-irradiated zirconium-based alloys

et al. 2022

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“…Екс-периментально встановлено модуляцію густини композитного складу та виникнення періодичних структур під опроміненням [31,[47][48][49]. Мікроосциляції складу стопів Fe-Ni, Fe-Ni-Cr, що було виявлено під час опромінення 5 Мев-йонами Ni + [48,49], вказують на можливість поширення дефектної структури на великі віддалі (ефект далекосяжности).…”

Section: експериментальні дослідження явища просторово-періодичного вunclassified

Physical Kinetics of Redistribution of Point Defects in Irradiated Crystals

Oliinyk

Tatarenko

2012

Usp. Fiz. Met.

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Дано огляд літературних даних експериментальних спостережень самоор-ганізації дисипативних структур у кристалах під опроміненням. Розгляну-то вплив опромінення на стійкість однорідного розподілу густини точкових дефектів та утворення ними дисипативних модульованих структур на по-верхні та в об'ємі твердого тіла. Зазначено теоретичні підходи щодо опису умов утворення таких структур.Literary review of experimental data concerned with the observation of the self-organization of dissipative structures in crystals under irradiation is presented. An influence of irradiation on the stability of the homogeneous distribution of density of point defects and the formation of their dissipative modulated structures on the surface and in the bulk of a solid is considered. Theoretical approaches to the describing of the conditions of formation of such structures are mentioned.Обозреваются литературные данные экспериментальных наблюдений са-моорганизации диссипативных структур в кристаллах при облучении. Рас-смотрено влияние облучения на устойчивость однородного распределения плотности точечных дефектов и образования ими диссипативных модули-рованных структур на поверхности и в объёме твёрдого тела. Отмечены теоретические подходы к описанию условий образования таких структур.Ключові слова: опромінення, вакансії, нестійкість, самоорганізація, диси-пативна структура, модульована структура, нанопори, надґратниця.

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Ion-induced spinodal-like decomposition of Fe-Ni-Cr invar alloys

Cited by 40 publications

References 11 publications

Correlative EBSD and SKPFM characterisation of microstructure development to assist determination of corrosion propensity in grade 2205 duplex stainless steel

Correlative EBSD and SKPFM characterisation of microstructure development to assist determination of corrosion propensity in grade 2205 duplex stainless steel

APT and TEM study of behaviour of alloying elements in neutron-irradiated zirconium-based alloys

Physical Kinetics of Redistribution of Point Defects in Irradiated Crystals

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