Title : ( High temperature oxidation behaviour of AISI 321 stainless steel with an ultrafine-grained surface at 800 °C in Ar–20 vol.% O2 )
Authors: Sadegh PourAli , Martin Weiser , Nhat Truong Nguyen , Ali Reza Kiani Rashid , Abolfazl Babakhani , Sannakaisa Virtanen ,
Full TextAbstract
Oxidation behaviour of surface nanocrystallized 321 austenitic stainless steel (SN–321ASS) and its conventional polycrystalline counterpart (CP–321ASS) in Ar + 20% O2 at 800 °C is comparatively investigated. Severe breakaway oxidation sets in for the CP–321ASS after 100 h, while the SN–321ASS shows a higher oxidationresistance. Surface nanocrystallization increases the diffusion and flux of Cr towards the oxidation front, and can consequently promote the kinetics of early oxidation and accelerate the formation of a thicker Cr-rich inner oxide layer, which aids in prohibiting the enhanced formation of Fe-rich oxides.
Keywords
A. Stainless steel B. TEM B. XRD C. Oxidation
@article{paperid:1083229,
author = {PourAli, Sadegh and Martin Weiser and Nhat Truong Nguyen and Kiani Rashid, Ali Reza and Babakhani, Abolfazl and Sannakaisa Virtanen},
title = {High temperature oxidation behaviour of AISI 321 stainless steel with an ultrafine-grained surface at 800 °C in Ar–20 vol.% O2},
journal = {Corrosion Science},
year = {2020},
volume = {163},
number = {1},
month = {February},
issn = {0010-938X},
pages = {108282--109614},
numpages = {1332},
keywords = {A. Stainless steel
B. TEM
B. XRD
C. Oxidation},
}
%0 Journal Article
%T High temperature oxidation behaviour of AISI 321 stainless steel with an ultrafine-grained surface at 800 °C in Ar–20 vol.% O2
%A PourAli, Sadegh
%A Martin Weiser
%A Nhat Truong Nguyen
%A Kiani Rashid, Ali Reza
%A Babakhani, Abolfazl
%A Sannakaisa Virtanen
%J Corrosion Science
%@ 0010-938X
%D 2020
