QIN Bin, SHENG Guang-min, GONG Shi-hong. TESTING AND ANALYSING FOR DUCTILE-BRITTLE TRANSITION TEMPERATURE OF HRB400 ANTI-SEISMIC STEEL BAR[J]. IRON STEEL VANADIUM TITANIUM, 2003, 24(4): 59-63.
Citation:
QIN Bin, SHENG Guang-min, GONG Shi-hong. TESTING AND ANALYSING FOR DUCTILE-BRITTLE TRANSITION TEMPERATURE OF HRB400 ANTI-SEISMIC STEEL BAR[J]. IRON STEEL VANADIUM TITANIUM, 2003, 24(4): 59-63.
QIN Bin, SHENG Guang-min, GONG Shi-hong. TESTING AND ANALYSING FOR DUCTILE-BRITTLE TRANSITION TEMPERATURE OF HRB400 ANTI-SEISMIC STEEL BAR[J]. IRON STEEL VANADIUM TITANIUM, 2003, 24(4): 59-63.
Citation:
QIN Bin, SHENG Guang-min, GONG Shi-hong. TESTING AND ANALYSING FOR DUCTILE-BRITTLE TRANSITION TEMPERATURE OF HRB400 ANTI-SEISMIC STEEL BAR[J]. IRON STEEL VANADIUM TITANIUM, 2003, 24(4): 59-63.
Series of impact test for HRB400 anti-seismic steel bars with diameters of Ø25 mm and Ø32 mm dedicate the ductile-brittle transition temperature of big size steel bars are higher than small ones. Light microscope observation reveals the Ø32 mm steel bar has coarse grain, SEM show brittle fracture take place at 12℃. TEM was used to analyze the form and distribution of vanadium, then vanadium-nitrogen alloying and controlled rolling was brought forward as a suggest to enhance the impact property of HRB400 steel bars at low temperature.
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