The influence of hydrogen charged cathodically on the tensile behavior of pressure vessel steel SA508 C1.3 has been investigated in the temperature range 200 - 350 degreesC. It was found that the charged hydrogen induced a marked softening and a decrease in ductility at these temperatures, especially in the dynamic strain aging (DSA) region. Correspondingly, some flat or brittle-like areas appeared on the fracture surfaces locally and the dimples became smaller and shallower. Moreover, the presence of hydrogen moved the critical temperature at which DSA takes place to a higher temperature. The possible interactions between hydrogen and DSA at relatively high temperatures and the related mechanisms are also discussed according to the above experimental results.
部门归属
inst met sci & technol, state key lab corros & protect, shenyang 110016, peoples r china. korea adv inst sci & technol, taejon 305701, south korea.;wu, xq (reprint author), inst met sci & technol, state key lab corros & protect, 62 wencui rd, shenyang 110016, peoples r china;wxq_imr@yahoo.com
X. Q. Wu,I. S. Kim. Influence of charged hydrogen on tensile behavior of a pressure vessel steel at relatively high temperatures[J]. Zeitschrift Fur Metallkunde,2003,94(9):1017-1020.
APA
X. Q. Wu,&I. S. Kim.(2003).Influence of charged hydrogen on tensile behavior of a pressure vessel steel at relatively high temperatures.Zeitschrift Fur Metallkunde,94(9),1017-1020.
MLA
X. Q. Wu,et al."Influence of charged hydrogen on tensile behavior of a pressure vessel steel at relatively high temperatures".Zeitschrift Fur Metallkunde 94.9(2003):1017-1020.
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