摘要
通过定量相分析研究了Nb-Ti微合金化超低碳烘烤硬化钢(%:0.002C、0.01～0.02Nb、0.01～0.02Ti、0.002 8～0.004 2N)的析出相,建立了试验钢固溶C含量的计算公式。结果表明,随固溶C含量计算值的增加,钢板的烘烤硬化性BH_2值增大;随冷轧板退火温度(810～850℃)的增加,BH_2值增加;820℃退火时,640℃卷取的钢板BH_2值高于710℃卷取的钢板BH_2值。
Precipitates in Nb-Ti microalloying ultra-low carbon bake hardening steel （ % ： 0. 002C, 0. 01- 0.02Nb, 0. 01 -0.02Ti, 0.002 8- 0. 004 2N） have been studied and expressions for solution C content in test steel were established by quantitative phase analysis. Results showed that increasing calculated value of solution C content, the bake hardening BH2 value increased; with increasing annealing temperature （810 - 850 ℃ ） of cold rolled plate, the BH2 value increased; and as annealed at 820 ℃, the BH2 value of plate coiled at 640 ℃ was higher than that coiled at 710℃.
出处
《特殊钢》
北大核心
2009年第3期13-15,共3页
Special Steel
