固溶C对Nb-Ti微合金化ULC-BH钢板烘烤硬化性能的影响

特殊钢 ›› 2009, Vol. 30 ›› Issue (3): 13-15.

固溶C对Nb-Ti微合金化ULC-BH钢板烘烤硬化性能的影响

崔岩, 王瑞珍, 雍岐龙, 李海昭

1 昆明理匚大学材料与冶金工程学院，昆明650091 ；
2 钢铁研究总院结构材料研究所，北京100081

收稿日期:2008-11-27 出版日期:2009-06-01 发布日期:2022-11-22
作者简介:崔岩(1979-),男，博士研究生，超低碳烘烤硬化钢研究。

Effect of Solution C on Bake Hardening Behavior of Nb-Ti Microalloying ULC-BH Steel Plate

Cui Yan^1,2, Wang Ruizhen², Yong Qilong^{1, 2}, Li Haizhao^{1, 2}

1 Institute of Materials and Metallurgical Engineering, Kunming University of Science and Technology, Kunming 650091:
2 Institute of Structural Materials, Central Iron and Steel Research Institute, Beijing 100081

Received:2008-11-27 Published:2009-06-01 Online:2022-11-22

摘要/Abstract

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BH₂值增大;随冷轧板退火温度(810～850℃)的增加,BH₂值增加;820℃退火时,640℃卷取的钢板BH₂值高于710℃卷取的钢板BH2值。

关键词: Nb-Ti微合金化, 超低碳钢, 烘烤硬化, 固溶C

Abstract: 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 °C ) of cold rolled plate, the BH₂ value increased ；and as annealed at 820 °C , the BH₂ value of plate coiled at 640 °C was higher than that coiled at 710 °C.

Key words: Nb-Ti Microalloying, ULC Steels, Bake Hardening, Solution C

崔岩, 王瑞珍, 雍岐龙, 李海昭. 固溶C对Nb-Ti微合金化ULC-BH钢板烘烤硬化性能的影响[J]. 特殊钢, 2009, 30(3): 13-15.

Cui Yan, Wang Ruizhen, Yong Qilong, Li Haizhao. Effect of Solution C on Bake Hardening Behavior of Nb-Ti Microalloying ULC-BH Steel Plate[J]. Special Steel, 2009, 30(3): 13-15.