Equivalent hydrogen fugacity during electrochemical charging of some martensitic advanced high-strength steels
Author(s)
Venezuel, Jeffrey
Gray, Evan
Liu, Qinglong
Zhou, Qingjun
Tapia-Bastidas, Clotario
Zhang, Mingxing
Atrens, Andrej
Griffith University Author(s)
Year published
2017
Metadata
Show full item recordAbstract
A new thermal desorption spectroscopy apparatus was used to study hydrogen in four martensitic advanced high-strength steels (designated MS980, MS1180, MS1300 and MS1500) after gaseous hydrogen charging, and after hydrogen charging electrochemically in 0.1 M NaOH and in 3.5 wt.% NaCl. The hydrogen concentration did not correlate strongly with steel strength. For MS1500, a relationship was derived between equivalent hydrogen fugacity and the applied charging overpotential. Also for MS1500, the trap binding energies were evaluated to be 26.4 kJ mol−1 and 61.0 kJ mol−1, which were interpreted as dislocation and interface hydrogen ...
View more >A new thermal desorption spectroscopy apparatus was used to study hydrogen in four martensitic advanced high-strength steels (designated MS980, MS1180, MS1300 and MS1500) after gaseous hydrogen charging, and after hydrogen charging electrochemically in 0.1 M NaOH and in 3.5 wt.% NaCl. The hydrogen concentration did not correlate strongly with steel strength. For MS1500, a relationship was derived between equivalent hydrogen fugacity and the applied charging overpotential. Also for MS1500, the trap binding energies were evaluated to be 26.4 kJ mol−1 and 61.0 kJ mol−1, which were interpreted as dislocation and interface hydrogen traps.
View less >
View more >A new thermal desorption spectroscopy apparatus was used to study hydrogen in four martensitic advanced high-strength steels (designated MS980, MS1180, MS1300 and MS1500) after gaseous hydrogen charging, and after hydrogen charging electrochemically in 0.1 M NaOH and in 3.5 wt.% NaCl. The hydrogen concentration did not correlate strongly with steel strength. For MS1500, a relationship was derived between equivalent hydrogen fugacity and the applied charging overpotential. Also for MS1500, the trap binding energies were evaluated to be 26.4 kJ mol−1 and 61.0 kJ mol−1, which were interpreted as dislocation and interface hydrogen traps.
View less >
Journal Title
Corrosion Science
Volume
127
Subject
Civil engineering
Materials engineering
Materials engineering not elsewhere classified
Mechanical engineering