TY - JOUR
T1 - Pitting corrosion resistance of martensite of AISI 1045 steel and the beneficial role of interstitial carbon
AU - Kadowaki, Mariko
AU - Muto, Izumi
AU - Sugawara, Yu
AU - Doi, Takashi
AU - Kawano, Kaori
AU - Hara, Nobuyoshi
N1 - Funding Information:
This research was supported by the New Energy and Industrial Technology Development Organization (NEDO) and JSPS KAK-ENHI grant Numbers JP15K14175 and JP17H01331. This research was also supported by the Program for Leading Graduate Schools, “Interdepartmental Doctoral Degree Program for Multi-dimensional Materials Science Leaders”, by the Ministry of Education, Culture, Sports, Science and Technology.
Funding Information:
This research was supported by the New Energy and Industrial Technology Development Organization (NEDO) and JSPS KAKENHI grant Numbers JP15K14175 and JP17H01331. This research was also supported by the Program for Leading Graduate Schools, "Interdepartmental Doctoral Degree Program for Multi-dimensional Materials Science Leaders", by the Ministry of Education, Culture, Sports, Science and Technology.
Publisher Copyright:
© The Author(s) 2017. Published by ECS. All rights reserved.
PY - 2017
Y1 - 2017
N2 - The pitting corrosion resistance of AISI 1045 carbon steel with as-quenched, tempered, and low-carbon martensitic microstructures was investigated in boric-borate buffer solutions with and without NaCl. Analysis by micro-scale polarization found that tempering and decarburizing treatments decreased the pitting corrosion resistance of as-quenched martensite. The high corrosion resistance of the as-quenched martensite was likely due to the large amount of interstitial carbon. The pitting corrosion resistances of asquenched martensite, primary ferrite, and pearlite were compared using micro-scale polarization measurements. It was determined that the pitting corrosion resistances of the typical steel structures were ordered as follows: (high) as-quenched martensite > tempered martensite ∼ primary ferrite > pearlite (low). The pitting corrosion resistance of steel was shown to depend on its microstructure.
AB - The pitting corrosion resistance of AISI 1045 carbon steel with as-quenched, tempered, and low-carbon martensitic microstructures was investigated in boric-borate buffer solutions with and without NaCl. Analysis by micro-scale polarization found that tempering and decarburizing treatments decreased the pitting corrosion resistance of as-quenched martensite. The high corrosion resistance of the as-quenched martensite was likely due to the large amount of interstitial carbon. The pitting corrosion resistances of asquenched martensite, primary ferrite, and pearlite were compared using micro-scale polarization measurements. It was determined that the pitting corrosion resistances of the typical steel structures were ordered as follows: (high) as-quenched martensite > tempered martensite ∼ primary ferrite > pearlite (low). The pitting corrosion resistance of steel was shown to depend on its microstructure.
UR - http://www.scopus.com/inward/record.url?scp=85040765690&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85040765690&partnerID=8YFLogxK
U2 - 10.1149/2.0541714jes
DO - 10.1149/2.0541714jes
M3 - Article
AN - SCOPUS:85040765690
SN - 0013-4651
VL - 164
SP - C962-C972
JO - Journal of the Electrochemical Society
JF - Journal of the Electrochemical Society
IS - 14
ER -
