Correlation of in-situ transmission electron microscopy and microchemistry analysis of radiation-induced precipitation and segregation in ion irradiated advanced ferritic/martensitic steels. (15th March 2019)

• Record Type: Journal Article
• Authors: Zheng, Ce; Ke, Jia-Hong; Maloy, Stuart A.; Kaoumi, Djamel
• Is Part Of: Scripta materialia. Number 162(2019)
• Page Start: 460
• Page End: 464
• Publication Date: 2019-03-15
• Subjects: Ferritic/martensitic steels -- Ion irradiation -- In-situ transmission electron microscopy -- Energy dispersive X-ray spectroscopy -- Precipitation; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2018.12.018
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract: This article presents a novel method combining ion irradiation, in-situ transmission electron microscopy (TEM), and microchemistry analysis before/after irradiation, which allows to examine same microstructural areas throughout ion irradiation. A 12 wt% Cr Ferritic/Martensitic steel (HT9) was irradiated in the TEM to 1.17 × 10 20 ions·m −2 at 440 °C using 1 MeV Kr 2+ ions, and the in-situ characterization focused on radiation-induced precipitation and segregation. Results of in-situ experiments were compared with those obtained from ex-situ experiments, to showcase how this method helps to better understand precipitation kinetics in the irradiated material examined ex-situ, for which only snapshots are available at limited doses. Graphical abstract: Unlabelled Image