TY - JOUR
T1 - Effects of tempered microstructure and hydrogen concentration on hydrogen-induced embrittlement susceptibility of 10B21 screws at low temperature
AU - Chen, Kuan Jen
AU - Hung, Fei Yi
AU - Lui, Truan Sheng
AU - Tseng, Chien Hao
N1 - Funding Information:
The authors acknowledge Dr. Kuan-Jen Chen for assistance in technical services (SIMS) by Ministry of Science and Technology (MOST) Instrument Center at National Cheng Kung University (NCKU) and MOST, Taiwan for financially supporting this study under Grant No. MOST 105-2628-E-006-001-MY2.
Publisher Copyright:
© 2018 The Japan Institute of Metals and Materials.
Copyright:
Copyright 2018 Elsevier B.V., All rights reserved.
PY - 2018
Y1 - 2018
N2 - Secondary ion mass spectroscopy (SIMS) was used to examine the hydrogen atoms in low-carbon boron (10B21) steel screws. The effects of baking and tempering treatments on the hydrogen-induced embrittlement (HIE) susceptibility of the screws were investigated. SIMS results confirmed that hydrogen concentration decreased with increasing baking duration, and thus increased the engineering reliability of the screws. For low-temperature applications, 10B21 screws must be baked for a longer duration to prevent HIE. The observed tempered martensite was composed of ferrite and cementite, which could limit the movement of hydrogen atoms. At higher tempering temperature, the structure of the screw matrix became finer, reducing the HIE susceptibility. 10B21 screws tempered at a high temperature thus had good ability to resist low-temperature HIE.
AB - Secondary ion mass spectroscopy (SIMS) was used to examine the hydrogen atoms in low-carbon boron (10B21) steel screws. The effects of baking and tempering treatments on the hydrogen-induced embrittlement (HIE) susceptibility of the screws were investigated. SIMS results confirmed that hydrogen concentration decreased with increasing baking duration, and thus increased the engineering reliability of the screws. For low-temperature applications, 10B21 screws must be baked for a longer duration to prevent HIE. The observed tempered martensite was composed of ferrite and cementite, which could limit the movement of hydrogen atoms. At higher tempering temperature, the structure of the screw matrix became finer, reducing the HIE susceptibility. 10B21 screws tempered at a high temperature thus had good ability to resist low-temperature HIE.
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U2 - 10.2320/matertrans.M2017342
DO - 10.2320/matertrans.M2017342
M3 - Article
AN - SCOPUS:85049213960
VL - 59
SP - 1124
EP - 1129
JO - Materials Transactions
JF - Materials Transactions
SN - 0916-1821
IS - 7
ER -