TY - GEN
T1 - Electrochemical characteristics of 410 stainless steel produced by MIM process through EIS method under SSRT test
AU - Sunada, Satoshi
AU - Nunomura, Norio
AU - Majima, Kazuhiko
PY - 2012
Y1 - 2012
N2 - In this experiment two kinds of 410L stainless steel, i.e., the first one is prepared by the I/M process and the second one is prepared by MIM process were used, and their corrosion behavior under stress in deionized water and the aqueous solution of 0.01kmol·m-3HCl+1.72mol m -3MgCl2 (pH=2.33) has been investigated by Electrochemical Impedance Spectroscopy (hereafter shortened as EIS) under Slow Strain Rate Tensile (hereafter shortened as SSRT) test. The charge transfer resistance (Rct) of the I/M specimen is larger than that of the MIM specimen irrespective of under stress or non-stress, which means that the I/M specimen has the better corrosion resistance than the MIM specimen in the 0.01kmol m -3HCl+1.72mol·m-3MgCl2 (pH=2.33) solution. It was also confirmed from the fracture surface observation that hydrogen embrittlement occurred on the MIM specimen in the aqueous solution of 0.01kmol m-3HCl+1.72mol m-3MgCl2 (pH=2.33). This result would be confirmed to be due to the existing impurities and defects in the MIM specimen.
AB - In this experiment two kinds of 410L stainless steel, i.e., the first one is prepared by the I/M process and the second one is prepared by MIM process were used, and their corrosion behavior under stress in deionized water and the aqueous solution of 0.01kmol·m-3HCl+1.72mol m -3MgCl2 (pH=2.33) has been investigated by Electrochemical Impedance Spectroscopy (hereafter shortened as EIS) under Slow Strain Rate Tensile (hereafter shortened as SSRT) test. The charge transfer resistance (Rct) of the I/M specimen is larger than that of the MIM specimen irrespective of under stress or non-stress, which means that the I/M specimen has the better corrosion resistance than the MIM specimen in the 0.01kmol m -3HCl+1.72mol·m-3MgCl2 (pH=2.33) solution. It was also confirmed from the fracture surface observation that hydrogen embrittlement occurred on the MIM specimen in the aqueous solution of 0.01kmol m-3HCl+1.72mol m-3MgCl2 (pH=2.33). This result would be confirmed to be due to the existing impurities and defects in the MIM specimen.
KW - Corrosion resistance
KW - Electrochemical impedance spectroscopy
KW - Hydrogen embrittlement
KW - Metal injection molding
KW - SUS410
KW - Slow strain rate tensile
UR - http://www.scopus.com/inward/record.url?scp=84856196271&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/MSF.706-709.2008
DO - 10.4028/www.scientific.net/MSF.706-709.2008
M3 - 会議への寄与
AN - SCOPUS:84856196271
SN - 9783037853030
T3 - Materials Science Forum
SP - 2008
EP - 2013
BT - THERMEC 2011
PB - Trans Tech Publications Ltd
T2 - 7th International Conference on Processing and Manufacturing of Advanced Materials, THERMEC'2011
Y2 - 1 August 2011 through 5 August 2011
ER -