Effect of Hot Rolling Practice on Microstructure and Mechanical Properties of Fire-resistant Steel
Trials to develop a C-Mn-Mo-Nb type fire-resistant steel have been carried out by adopting recrystallization rolling (RCR)+air cooling (AC), two-stage rolling (TSR)+AC and RCR+water cooling (WC). Both RCR and TSR followed by AC resulted in polygonal ferrite (F)+pearlite (P) microstructure, while F+bainite (B) microstructure was formed by RCR+WC. The plates with F+P microstructure show tensile strengths ≥490MPa, while those with F+B exhibit tensile strengths ≥590MPa. All the plates show favorable low yield ratios≤0.75, good charpy v-notch impact property >101J at 0℃ and satisfactory high temperature strength (≥2/3 of room temperature yield strength retained at 600℃).
fire-resistant steel molybdenum solid solution high temperature strength
ZHANG Yu PAN Xin GUO Hui-ying
Institute of Research of Iron and Steel (IRIS), Sha-steel, Zhangjiagang, Jiangsu 215625, China
国际会议
The 6th International Conference on High Strength Low Alloy Steels(第六届高强度低合金钢国际会议HSLA Steels2011)
北京
英文
516-520
2011-05-31（万方平台首次上网日期，不代表论文的发表时间）