TY - JOUR
T1 - Effect of passive film on mechanical properties of martensitic stainless steel 15-5PH in a neutral NaCl solution
AU - Guo, Qiang
AU - Liu, Jianhua
AU - Yu, Mei
AU - Li, Songmei
N1 - Publisher Copyright:
© 2014 Elsevier B.V. All rights reserved.
PY - 2015/2/1
Y1 - 2015/2/1
N2 - The effect of passive film on mechanical properties of the martensitic stainless steel 15-5PH in neutral 3.5 wt% NaCl solution was investigated, using surface analysis techniques, electrochemical measurements and slow strain rate technique. In neutral 3.5 wt% NaCl solution, the passive film formed at passivity potential is mainly divided into iron oxides-rich outer layer (FeO, Fe 2 O 3 ) and chromium oxides-rich inner layer (Cr 2 O 3 , Cr(OH) 3 ). During crack propagation, the passive film reduced formation of micro-cracks and micro-cleavages around the crack tip, and as a consequence, remarkably increased the fracture ductility of the martensitic stainless steel.
AB - The effect of passive film on mechanical properties of the martensitic stainless steel 15-5PH in neutral 3.5 wt% NaCl solution was investigated, using surface analysis techniques, electrochemical measurements and slow strain rate technique. In neutral 3.5 wt% NaCl solution, the passive film formed at passivity potential is mainly divided into iron oxides-rich outer layer (FeO, Fe 2 O 3 ) and chromium oxides-rich inner layer (Cr 2 O 3 , Cr(OH) 3 ). During crack propagation, the passive film reduced formation of micro-cracks and micro-cleavages around the crack tip, and as a consequence, remarkably increased the fracture ductility of the martensitic stainless steel.
KW - Martensitic stainless steel
KW - Mechanical properties
KW - NaCl solution
KW - Passive film
UR - https://www.scopus.com/pages/publications/84921666006
U2 - 10.1016/j.apsusc.2014.11.154
DO - 10.1016/j.apsusc.2014.11.154
M3 - 文章
AN - SCOPUS:84921666006
SN - 0169-4332
VL - 327
SP - 313
EP - 320
JO - Applied Surface Science
JF - Applied Surface Science
ER -