Plan-view characterization of intergranular precipitates on grain boundaries by combination of FIB lift out method and TEM analyses: A case study in austenitic stainless steel
•A new two-dimensional characterization method was established to study intergranular precipitates in the planar manner.•A dual beam FIB-SEM was applied to fabricate thin FIB lamella with a grain boundary parallel to the lamella to investigate by TEM.•Distributions, microstructures and compositions...
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Veröffentlicht in: | Micron (Oxford, England : 1993) England : 1993), 2020-11, Vol.138, p.102927-102927, Article 102927 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | •A new two-dimensional characterization method was established to study intergranular precipitates in the planar manner.•A dual beam FIB-SEM was applied to fabricate thin FIB lamella with a grain boundary parallel to the lamella to investigate by TEM.•Distributions, microstructures and compositions of intergranular precipitates of austenitic stainless steel were examined.
A new characterization method is proposed to study intergranular precipitates of polycrystalline material in the planar manner. A dual beam focused ion beam (FIB) - scanning electron microscopy (SEM) was applied to fabricate thin FIB lamella with a grain boundary parallel to the lamella to investigate for transmission electron microscopy (TEM). Distributions, microstructures and compositions of intergranular precipitates of austenitic stainless steel were then examined by TEM, scanning transmission electron microscopy (STEM), and energy dispersive X-ray spectroscopy (EDS). This plan-view microstructural characterization methods would play important roles in the case of materials where the intergranular precipitates play key roles for their physical and chemical properties. |
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ISSN: | 0968-4328 1878-4291 |
DOI: | 10.1016/j.micron.2020.102927 |