TY - JOUR
T1 - Grain boundary engineering of 10% Cr ferritic-martensitic steel SUH3
AU - Hirayama, Kyosuke
AU - Yoshii, Yonosuke
AU - Morizono, Yasuhiro
AU - Tsurekawa, Sadahiro
AU - Hidaka, Yasuyosi
N1 - Publisher Copyright:
© 2015 ISIJ.
PY - 2015
Y1 - 2015
N2 - Thermomechanical treatments for manipulating grain boundary microstructure in 10 wt%Cr ferriticmartensitic steel SUH3 have been studied. Material with a high fraction of coincidence site lattice (CSL) boundaries was successfully produced and subjected to steam oxidation tests to demonstrate the utility of grain boundary engineering. Introducing a high fraction of twin boundaries in austenite resulted in a significant increase in the number of CSL boundaries along the prior austenite grain boundaries in martensite. In addition, grain boundary engineering introduced a high density of subblock structures in martensite, which resulted in a homogeneous distribution of fine precipitates in tempered martensite. Steam oxidation tests demonstrated that grain boundary engineering for SUH3 steel can achieve enhanced oxidation resistance.
AB - Thermomechanical treatments for manipulating grain boundary microstructure in 10 wt%Cr ferriticmartensitic steel SUH3 have been studied. Material with a high fraction of coincidence site lattice (CSL) boundaries was successfully produced and subjected to steam oxidation tests to demonstrate the utility of grain boundary engineering. Introducing a high fraction of twin boundaries in austenite resulted in a significant increase in the number of CSL boundaries along the prior austenite grain boundaries in martensite. In addition, grain boundary engineering introduced a high density of subblock structures in martensite, which resulted in a homogeneous distribution of fine precipitates in tempered martensite. Steam oxidation tests demonstrated that grain boundary engineering for SUH3 steel can achieve enhanced oxidation resistance.
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U2 - 10.2355/isijinternational.ISIJINT-2015-057
DO - 10.2355/isijinternational.ISIJINT-2015-057
M3 - Article
AN - SCOPUS:84943141258
SN - 0915-1559
VL - 55
SP - 1973
EP - 1979
JO - Transactions of the Iron and Steel Institute of Japan
JF - Transactions of the Iron and Steel Institute of Japan
IS - 9
ER -