摘要
试验研究了钛含量对Q345A钢(%:0.08～0.10C、1.19～1.46Mn、0.017～0.029Nb、0.02～0.08Ti) 14～20mm热轧板力学性能的影响。结果表明,Ti=0.02%时,钢板的强度无显著变化,Ti为0.02%～0.04%时,钢板强度随Ti含量增加而增加;Ti≥0.04%时,钢板强度随Ti含量增加而下降。控制Nb-Ti微合金化重型汽车板用钢Q345A的Ti含量为0.02%～0.04%,可获得最佳强塑性配合。
The effect of titanium content on mechanical properties of 14 - 20 mm hot rolled plate of Q345A steel （0.08-0. 10C, 1.19 - 1.46Mn, 0.017 - 0.029Nb, 0.02 -0.08Ti） has been studied. Results showed that as Ti = 0. 02%, the strength of steel plate was not obvious change, as Ti content was 0. 02 - 0. 04%, with increasing Ti content the strength of steel plate increased, and as Ti≥0. 04%, with increasing Ti content the strength of steel plate decreased. With controlling Ti content within 0. 02% - 0. 04% in Nb-Ti microalloying Q345A steel for heavy truck plate, the optimum combined strength and plasticity shall be got.
出处
《特殊钢》
北大核心
2007年第6期61-62,共2页
Special Steel
