TY - JOUR
T1 - Comparative study of the behavior of API 5L-X65 grade steel and ASTM A53-B grade steel against corrosion in seawater
AU - Vera, Rosa
AU - Vinciguerra, Fabrizio
AU - Bagnara, Margarita
N1 - Publisher Copyright:
© 2015 The Authors.
PY - 2015
Y1 - 2015
N2 - Low freshwater availability in northern Chile means that many mining companies use seawater for several different processes. The present study analyzes the corrosion behavior of API 5L X65 steel and ASTM 53-B steel in seawater taken from the coast of northern Chile. Electrochemistry (polarization curves) and mass loss (flow simulation) techniques are used. The results obtained from the (static) electrochemical testing give the corrosion potential, corrosion current, corrosion rate, passivity current and pitting potential. All measurements show improved corrosion behavior in seawater for the API 5L X65 steel. The total corrosion rate, which includes the corrosion and erosion processes for the materials in the flow simulation system, was 0.41 μm year-1 at day 10 for the API 5L X65 steel and 0.59 μm year-1 at day 10 for the ASTM A53-B steel. Scanning microscopy observations show the presence of pitting, more so for the ASTM A53-B steel.
AB - Low freshwater availability in northern Chile means that many mining companies use seawater for several different processes. The present study analyzes the corrosion behavior of API 5L X65 steel and ASTM 53-B steel in seawater taken from the coast of northern Chile. Electrochemistry (polarization curves) and mass loss (flow simulation) techniques are used. The results obtained from the (static) electrochemical testing give the corrosion potential, corrosion current, corrosion rate, passivity current and pitting potential. All measurements show improved corrosion behavior in seawater for the API 5L X65 steel. The total corrosion rate, which includes the corrosion and erosion processes for the materials in the flow simulation system, was 0.41 μm year-1 at day 10 for the API 5L X65 steel and 0.59 μm year-1 at day 10 for the ASTM A53-B steel. Scanning microscopy observations show the presence of pitting, more so for the ASTM A53-B steel.
KW - API 5L X65 carbon steel
KW - ASTM A53-B carbon steel
KW - Corrosion
KW - Mining
KW - Seawater
UR - http://www.scopus.com/inward/record.url?scp=84941312356&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:84941312356
SN - 1452-3981
VL - 10
SP - 6187
EP - 6198
JO - International Journal of Electrochemical Science
JF - International Journal of Electrochemical Science
IS - 8
ER -
