Manufacturing method of high-toughness TiC particle enhanced martensite wear-resistant steel plate

• Main Authors: FU TIANLIANG, LIU DAN, ZHANG QINGXUE, ZHANG YONGWEI, WANG QI, LI YANMEI, LUO DENG, WANG ZHAODONG, ZHENG JIAN, DENG XIANGTAO
• Format: Patent
• Language: Chinese; English
• Published: 07.11.2023
• Subjects: ALLOYS; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS; METALLURGY; METALLURGY OF IRON; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention belongs to the field of engineering materials, and provides a manufacturing method of a high-toughness TiC particle reinforced martensite wear-resistant steel plate. Based on the steps of converter smelting, external refining, protective casting, continuous casting billet heating, rolling and heat treatment, casting temperature reduction, high-permeability rolling and rolling compression ratio setting are adopted, and the size of high-toughness TiC particles is controlled to be 1.0-2.5 microns. By means of the method, the high-toughness TiC particle enhanced martensite wear-resisting steel plate can be stably produced, the hardness of the steel plate is 400-450 HB, the tensile strength is 1200-1350 MPa, the ductility is 10%-13%, the impact absorbing energy at the temperature of-20 DEG C can reach 35 J or above, and the wear resistance is 1.5 times or above that of traditional wear-resisting steel with the same hardness. 本发明属于工程材料领域，提出了一种高韧性TiC粒子增强型马氏体耐磨钢板制造方法。基于转炉冶炼、炉外精炼、保护浇铸、连铸坯加热、轧制及热处理步骤，采取降低