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Characterizing a Mechanically Alloyed Austenitic Steel with High-Purity Zr Addition

Presenter

Date: February 19, 2019 8:00am - 9:00am

Abstract

The speaker will discuss research in which a mechanically alloyed austenitic stainless steel (MA304LZ) was characterized as a candidate accident-tolerant fuel cladding material. The chemical composition of MA304LZ is similar to that of 304L SS with a 0.7% wt addition of high-purity Zr for refining grain size and forming Zr-oxide precipitates to enhance mechanical properties, corrosion resistance, and irradiation tolerance. MA304LZ was found to have improved mechanical properties and corrosion resistance compared with those of 304L SS; however, void swelling remains an issue.