Investigation of solute/interphase interaction during ferrite growth

Landeghem, H.P. Van; Langelier, Brian; Gault, Baptiste; Panahi, Damon; Korinek, Andreas; Purdy, G.R.; Zurob, Hatem S.

doi:10.1016/j.actamat.2016.11.035

Cited by 34 publications

(27 citation statements)

References 41 publications

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“…The full-width at half-maximum (FWHM) of the carbon peak across the interface is approx. 2.3 nm and is consistent with previous reports (Danoix et al, 2016; Van Landeghem et al, 2017). It is worth noting that carbon can be notoriously difficult to quantify by APT partly because of overlaps between atomic and molecular ions, but also its tendency to be detected as part of multiple hits and lost because of pile-up at the detector (Sha et al, 1992; Thuvander et al, 2011; Peng et al, 2018).…”

Section: Compositional Width Of An Interfacesupporting

confidence: 94%

Reflections on the Analysis of Interfaces and Grain Boundaries by Atom Probe Tomography

et al. 2020

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Interfaces play critical roles in materials and are usually both structurally and compositionally complex microstructural features. The precise characterization of their nature in three-dimensions at the atomic scale is one of the grand challenges for microscopy and microanalysis, as this information is crucial to establish structure–property relationships. Atom probe tomography is well suited to analyzing the chemistry of interfaces at the nanoscale. However, optimizing such microanalysis of interfaces requires great care in the implementation across all aspects of the technique from specimen preparation to data analysis and ultimately the interpretation of this information. This article provides critical perspectives on key aspects pertaining to spatial resolution limits and the issues with the compositional analysis that can limit the quantification of interface measurements. Here, we use the example of grain boundaries in steels; however, the results are applicable for the characterization of grain boundaries and transformation interfaces in a very wide range of industrially relevant engineering materials.

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Section: Compositional Width Of An Interfacesupporting

confidence: 94%

Reflections on the Analysis of Interfaces and Grain Boundaries by Atom Probe Tomography

et al. 2020

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“…); (b) element partitioning between alpha and beta phases following heat treatment of a high‐strength titanium alloy (Devaraj et al ); (c) partitioning of carbon (red dots) between ferrite and martensite phases in a decarburised alloy (figure 3 of Van Landeghem et al . ); (d) V‐pit defect distorting InGaN/GaN quantum well layers (grey dots are Ga atoms and In isoconcentration surfaces are in blue) showing Mg dopant (red spheres) distribution (figure courtesy of Rob Ulfig, Cameca); (e) fine‐scale clustering in an Al‐Cu‐Mg alloy. Full data set (left), Al and Cu atoms forming clusters (middle), 10 × 10 × 10 nm volume containing a single Cu‐Mg cluster (right) (figure 7 of Marceau et al .…”

Section: An Introduction To Atom Probe Tomographymentioning

confidence: 99%

Atom Probe Tomography: Development and Application to the Geosciences

Reddy

Saxey

Rickard

et al. 2020

Geostandard Geoanalytic Res

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Atom probe tomography (APT) is an analytical technique that provides quantitative three‐dimensional elemental and isotopic analyses at sub‐nanometre resolution across the whole periodic table. Although developed and mostly used in the materials science and semiconductor fields, recent years have seen increasing development and application in the geoscience and planetary science disciplines. Atom probe studies demonstrate compositional complexity at the nanoscale and provide fundamental new insights into the atom‐scale mechanisms taking place in minerals over geological time. Here, we provide an overview of APT, including the historical development and technical aspects of the instrumentation, and the fundamentals of data acquisition, data processing and data reconstruction. We also review previous studies and highlight the potential future applications of nanoscale geochemical studies of natural materials.

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“…in Figure 1(a)), carbon could be partitioned between ferrite and austenite and its long-range diffusion is considered to dominate the growth of ferrite. It is worth noting that the interaction between Ni and carbon or moving interfaces is negligible due to the low binding energies between them [25,26]. Thus, possible segregation of Ni in the interface and the solute drag effect, if any, is expected to be small in the present study.…”

mentioning

confidence: 82%

Deformation-assisted diffusion for the enhanced kinetics of dynamic phase transformation

Zhao

Park

Tian

et al. 2018

Materials Research Letters

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Comparison on the kinetics of two different phase transformations, including phase transformation after deformation and phase transformation during deformation (i.e. dynamic transformation, DT), reveals a new discovery that the transformation kinetics can be significantly enhanced in DT even under low driving forces. DT enables continuous generation of defects (e.g. dislocations) near the phase boundary, which can act as short-circuiting diffusion paths for atoms. The diffusivity of atoms is enhanced and the activation energy for the atom jump across the phase boundary is lowered under stress during DT, resulting in more pronounced grain growth as well as accelerated transformation kinetics. IMPACT STATEMENT Deformation-enhanced grain growth is revealed in dynamic phase transformation, which will promote microstructure and property design of structural materials where phase transformations occur.

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Investigation of solute/interphase interaction during ferrite growth

Cited by 34 publications

References 41 publications

Reflections on the Analysis of Interfaces and Grain Boundaries by Atom Probe Tomography

Reflections on the Analysis of Interfaces and Grain Boundaries by Atom Probe Tomography

Atom Probe Tomography: Development and Application to the Geosciences

Deformation-assisted diffusion for the enhanced kinetics of dynamic phase transformation

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