微量纳米TiC颗粒增强45号钢组织与力学性能研究  

Study on the Microstructure and Mechanical Properties of 45 Steel Reinforced with Trace Nano TiC Particles

作　　者：韩悦 赵树国[1] 王思琪 徐萌 Han Yue;Zhao Shuguo;Wang Siqi;Xu Meng(Department of Mechanical and Electrical Engineering,Handan Polytechnic College,Handan Hebei 056001,China;Cold Rolling Plant,Handan Branch of HBIS Group Co.,Ltd.,Handan Hebei 056000,China)

机构地区：[1]邯郸职业技术学院机电工程系,河北邯郸056001 [2]河钢股份有限公司邯郸分公司冷轧厂,河北邯郸056000

出　　处：《山西冶金》2024年第12期10-13,共4页Shanxi Metallurgy

基　　金：河北省高等学校科学技术研究项目为微量纳米颗粒调控中碳钢组织演变与力学性能研究(QN2023228)。

摘　　要：提出了一种新的工艺路径,采用中间合金作为纳米颗粒的载体制备了微量纳米颗粒增强45号钢组织与力学性能。试验结果表明:微量纳米TiC颗粒的加入能明显细化晶粒、均匀化钢的组织,同时提高45号钢的力学性能。添加w(TiC)为0.030%纳米颗粒的45号钢具有最佳的拉伸性能,屈服强度为600 MPa、抗拉强度为902 MPa、断裂应变为26%,比45号钢基体分别提高15.8%、11.4%和12.7%。添加0.017%纳米颗粒的45号钢冲击性能最佳,冲击韧性为52.05 J/cm^(2),比45号钢基体提高了44.4%。A new process route was proposed to prepare micro nano particle reinforced 45 steel using intermediate alloy as the carrier of nano particles.The experimental results show that the addition of trace nano TiC particles can significantly refine the grain size,homogenize the structure of steel,and improve the mechanical properties of 45 steel.The addition of 0.030%TiC nanoparticles to 45#steel exhibits the best tensile properties,with a yield strength of 600 MPa,tensile strength of 902 MPa,and fracture strain of 26%,which are 15.8%,11.4%,and 12.7%higher than the 45#steel matrix,respectively.The impact toughness of 45 steel with 0.017%nanoparticles added is the best,with an impact toughness of 52.05 J/cm^(2),which is 44.4%higher than that of the 45 steel matrix.

关 键 词：纳米颗陶瓷粒 45号钢 显微组织 力学性能 

分 类 号：TG142.1[一般工业技术—材料科学与工程]