期刊
FUSION ENGINEERING AND DESIGN
卷 112, 期 -, 页码 460-467出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.fusengdes.2016.06.025
关键词
ODS-CLAM; Milling parameters; Mechanical alloying; Microstructure
资金
- National Magnetic Confinement Fusion Science Program of China [2013GB108005, 2014GB112003]
Oxide dispersion strengthened Ferritic/Martensitic steel is considered as one of the most potential structural material for future fusion reactor, owing to its high mechanical properties and good irradiation resistance. The oxide dispersion strengthened China Low Activation Martensitic (ODS-CLAM) steel was fabricated by mechanical alloying (MA) and hot isostatic pressing (HIP). The microstructural evolutions during the process of ball milling and subsequent consolidation were investigated by SEM, XRD and TEM. The results showed that increasing the milling time during the first 36 h milling could effectively decrease the grain size to a value of around 30 nm, over which grain sized remained nearly constant. Increasing the rotation speed promoted the solution of tungsten (W) element obviously and decreased the grain size to a certain degree. Observation on the consolidated and further heat-treated ODS-CLAM steel samples indicated that a martensite microstructure with a high density of nano-particles was achieved. (C) 2016 Elsevier B.V. All rights reserved.
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