Enhanced corrosion resistance of ultrafine-grained fe-cr alloys with subcritical cr contents for passivity

20Citations
Citations of this article
24Readers
Mendeley users who have this article in their library.

Abstract

This work presents an experimental validation that an ultrafine grained (UFG) structure of binary Fe-Cr alloys fabricated by severe plastic deformation (SPD) can bring about dramatic improvements in the corrosion resistance. More specifically, UFG Fe-Cr alloys with subcritical chromium content for passivation (8% and 10% Cr) was found to exhibit passivity, and was resistant to corrosion in an aqueous 0.6 mol/L NaCl solution whereas coarse-grained Fe-12% Cr, which are known as a stainless steel and passive in most dilute aerated solution, was degraded by corrosion. The findings indicated that the critical threshold of Cr content required for establishing a protective layer by self-passivation in binary Fe-Cr alloy is microstructure dependent, and can be reduced by grain size reduction to a sub-micron scale by SPD.

Cite

CITATION STYLE

APA

Rifai, M., Yuasa, M., & Miyamoto, H. (2018). Enhanced corrosion resistance of ultrafine-grained fe-cr alloys with subcritical cr contents for passivity. Metals, 8(3). https://doi.org/10.3390/met8030149

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free