热处理温度对IF钢板第二相粒子和力学性能的影响
Influences of Heat Treatment Temperatures on Mechanical Properties and Secondary-phase Particles of IF Steel Sheets
摘 要
对退火态IF钢板进行了不同温度的热处理,研究了热处理温度对IF钢板显微组织和力学性能的影响.结果表明:IF钢板中弥散分布着含碳第二相粒子;随着热处理温度的升高,显微组织中的含碳第二相粒子减少,IF钢板屈服强度和抗拉强度逐渐增加,塑性应变比r值和拉伸应变硬化指数n值则逐渐减小,即钢板深冲压性能降低.
热处理温度
第二相粒子
力学性能
IF steel sheet
heat treatment temperature
secondary-phase particle
mechanical property
Abstract
Different temperatures heat treatment was carried out on annealing IF steel sheets and the influences of heat treatment temperatures on microstructure and mechanical properties of the IF steel sheets were studied.The results show that the carbonaceous secondary-phase particles distributed dispersedly in grains of the IF steel sheets.With the increase of heat treatment temperature,the amount of secondary-phase particles decreased,the yield strength and tensile strength of the steel increased,and the value of r (plastic strain ratio) and n (tensile strain hardening exponent) decreased.That is to say,the deep drawability of the IF steel sheets decreased with the increase of heat treatment temperature.
中图分类号 TG161 TG142.1
所属栏目 试验与研究
基金项目
收稿日期 2014/12/20
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备注吴益文(1967-),男,研究员,硕士.
引用该论文: WU Yi-wen,ZHU Zi-heng,XU Ling-yun,JI Jing,WANG Biao. Influences of Heat Treatment Temperatures on Mechanical Properties and Secondary-phase Particles of IF Steel Sheets[J]. Physical Testing and Chemical Analysis part A:Physical Testing, 2015, 51(2): 87～91
吴益文,朱子恒,徐凌云,吉静,王彪. 热处理温度对IF钢板第二相粒子和力学性能的影响[J]. 理化检验－物理分册, 2015, 51(2): 87～91
被引情况:
【1】张 赛,孟庆振,谢书港,方 锐,孟宪春,孟宪明, "B250P1低合金钢的动态力学行为及其本构模型",理化检验－物理分册 52, 370-374(2016)
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参考文献
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【2】马衍伟,王先进.超深冲IF钢研究的最新进展[J].钢铁,1998,33(4):65-69.
【3】康永林.现代汽车板的质量控制与成型性[M].北京:冶金工业出版社,1999:34-39.
【4】关小军,周家娟,朱学钢.终轧温度对Ti+Nb处理的高强IF钢板织构的影响[J].钢铁研究,2001(1):16-19.
【5】邱昱斌,贾旭.热轧出炉温度对IF钢r值的影响[J].宝钢技术,2004(S):36-39.
【6】MARTINE V J,VERDEJA J I,PERO-SANZ J A.Interstitial free steel influence of a phase hot-rolling and cold-rolling reduction to obtain extra-deep drawing quality[J].Materials Characterization,2001,46(1):45-53.
【7】PERO-SANZ J,RUIZ-DELGADO M,MARTINE V,et al.Annealing textures for drawability:Influence of the degree of cold rolling reduction for low-carbon and extra low-carbon ferritic steels[J].Materials Characteri-zation,1999,43(5):303-309.
【8】SATOH S.Effect of precipitate dispersion on recrystallization texture of Nb steel sheet[J].Transactions of the ISIJ,1986,26:737-743.
【9】KATON H.Proceedings of the international sympo-sium on technology of continuously annealed cold-rolled sheet steel[C]//Detroit:TMS-AIME,1984:37-58.
【10】HUA M,GARCIAL C I,DEARDO A J.Multi-phase precipitates in interstitial-free steels[J].Scrita Meta-llurgica et Materialia,1993,28(8):973-978.
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