Effects of metastable austenite and martensite on the susceptibility to hydrogen embrittlement of TBF steels, The
A series of four experimental TRIP-aided bainitic ferrite (TBF) sheet steels was used to investigate the influence of microstructure (in particular secondary phase austenite) on hydrogen absorption and hydrogen embrittlement susceptibility. The TBF steels were designed to have similar carbon equivalent values (≈ 0.6) and similar tensile strengths (950-1150 MPa), allowing the effects of microstructure to be isolated. Quasi-static tensile tests were performed on the TBF steels after various durations of electrochemical hydrogen charging in order to characterize susceptibility to hydrogen embrittlement. ...
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Bollinger, Andrea L.
Speer, J. G.