Synthesis and microstructure evaluation of ODS steel 316L with zirconia dispersion

Abstract An Austenitic ODS steel was developed for reactor structural material by dispersed 0.5 wt % of nano powder zirconia (ZrO 2 ) to the AISI 316L steel. The synthesis was carried out by the powder metallurgy process with high energy milling and cooled compacting process. A new apparatus of APS...

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Bibliographic Details
Published inJournal of physics. Conference series Vol. 1912; no. 1; pp. 12002 - 12009
Main Authors Bandriyana, B, Sugeng, B, Salam, R, Hairani, D, Sujatno, A, Shabrina, N, Silalahi, M
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.05.2021
Subjects
Austenitic stainless steels
Compacting
Diamond pyramid hardness
Dispersion hardening steels
Dispersions
Grain boundaries
Hardness measurement
Mechanical alloying
Microstructure
Physics
Plasma sintering
Powder metallurgy
Sintering (powder metallurgy)
Synthesis
Zirconium dioxide
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Summary:Abstract An Austenitic ODS steel was developed for reactor structural material by dispersed 0.5 wt % of nano powder zirconia (ZrO 2 ) to the AISI 316L steel. The synthesis was carried out by the powder metallurgy process with high energy milling and cooled compacting process. A new apparatus of APS (Arc Plasma Sintering) was used for consolidation the sample in the sintering process. Characterizations of the microstructure and elemental composition distribution were performed using the Scanning Electron Microscope (SEM) with X-ray Diffraction Spectroscopy (EDX) and area mapping. Identification for the change of phasesand hardness were analyzed using the XRD-test and Vickers Hardness measurement. Austenitic phase with relatively equiaxed grain and homogeny distribution of the ZrO 2 dispersoid were identified after the sintering process followed by the improvement of hardness due to the pinning effect of the grain boundaries.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1912/1/012002