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Title: Incorporation of Yttria particles into 410L stainless steel by a power metallurgy route
Authors: Zeybek, A
Pirfo Barroso, S
Chong, KB
Edwards, L
Fitzpatrick, ME
Keywords: Creep
Mechanical properties
Stainless steels
Optical microscopy
Powder metallurgy
Issue Date: 11-Apr-2014
Publisher: Springer
Citation: Zeybek, A., Pirfo Barroso, S., Chong, K. B., Edwards, L., & Fitzpatrick, M. E. (2014). Incorporation of Yttria particles into 410L stainless steel by a power metallurgy route. Journal of Materials Engineering and Performance, 23(6). doi:10.1007/s11665-014-0988-6
Abstract: Addition of yttria to steels has been proposed for the fabrication of oxide-dispersion-strengthened materials for nuclear power applications. We have investigated materials prepared from 12 Cr martensitic stainless steel, AISI 410L, produced by powder metallurgy. Materials were produced with and without yttria addition, and two different sizes of yttria were used, 0.9 µm and 50 nm. Tensile and mini-creep tests were performed to determine mechanical properties. Optical microscopy, SEM, TEM, and EDX analysis were used to investigate the microstructures and deformation mechanisms and to obtain information about non-metallic inclusion particles. SiO2, MnS, and Y2Si2O7 inclusion particles were observed. An SiO2 and Y2O3 interaction was seen to have occurred during the ball milling, which impaired the final mechanical properties. Small-angle neutron scattering experiments showed that the matrix chemistry prevented effective dissolution of the yttria. © The Author(s) 2014
Gov't Doc #: 7554
ISSN: 1059-9495
Appears in Collections:Journal Articles

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