TY - JOUR
T1 - Corrosion properties of phase reversion induced nano/ultrafine grained AISI 304 metastable austenite stainless steel
AU - Lv, Yang
AU - Luo, Hongyun
AU - Tang, Jun
AU - Guo, Jingjing
AU - Pi, Jinliang
AU - Ye, Kanglin
N1 - Publisher Copyright:
© 2018 Elsevier Ltd
PY - 2018/11
Y1 - 2018/11
N2 - AISI 304 metastable austenite stainless steel was cold rolled under cryogenic temperature and transformed into martensite completely, after reverse transformation by annealing, bulk nano/ultrafine grained material was obtained. The material's microstructure was observed by TEM, and the corrosion resistance was studied by polarization curve, EIS, and Mott-Schottky plot. Results showed that samples cold rolled at −120 °C had an equiaxed microstructure and displayed the best corrosion performance. The distinctive polarization curve shape indicated that its passive film had a peculiar feature, and the M-S plot showed its abnormal semiconductor character. XPS measurements are used to directly characterize the composition of passive film formed on specimens. Heterogeneous microstructures might help with the improvement on corrosion resistance of the nano/ultrafine grained stainless steel.
AB - AISI 304 metastable austenite stainless steel was cold rolled under cryogenic temperature and transformed into martensite completely, after reverse transformation by annealing, bulk nano/ultrafine grained material was obtained. The material's microstructure was observed by TEM, and the corrosion resistance was studied by polarization curve, EIS, and Mott-Schottky plot. Results showed that samples cold rolled at −120 °C had an equiaxed microstructure and displayed the best corrosion performance. The distinctive polarization curve shape indicated that its passive film had a peculiar feature, and the M-S plot showed its abnormal semiconductor character. XPS measurements are used to directly characterize the composition of passive film formed on specimens. Heterogeneous microstructures might help with the improvement on corrosion resistance of the nano/ultrafine grained stainless steel.
KW - 304 Austenite stainless steel
KW - Corrosion resistance
KW - Cryogenic temperature
KW - Passive film
KW - Reverted martensite-austenitic transformation
UR - https://www.scopus.com/pages/publications/85051492312
U2 - 10.1016/j.materresbull.2018.04.024
DO - 10.1016/j.materresbull.2018.04.024
M3 - 文章
AN - SCOPUS:85051492312
SN - 0025-5408
VL - 107
SP - 421
EP - 429
JO - Materials Research Bulletin
JF - Materials Research Bulletin
ER -