Microalloying reinforced bainite wear-resistant steel

• Main Authors: YAMAIZUMI, HUANG XIEDONG, FU HAO, CHEN PENG, HUANG QINYUAN
• Format: Patent
• Language: Chinese; English
• Published: 31.10.2023
• 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 discloses microalloying reinforced bainite wear-resistant steel, and belongs to the technical field of bainite wear-resistant steel materials. The microalloyed reinforced bainite wear-resistant steel comprises the following chemical components in percentage by weight: 0.2 to 0.3 percent of C, 0.01 to 0.02 percent of N, 0.1 to 0.3 percent of Si, 1 to 3 percent of Mn, 0.4 to 0.6 percent of Ti, 0.1 to 0.6 percent of Mo, 0.8 to 1.0 percent of Cr, 0.5 to 0.6 percent of Ni, Plt and the balance of Fe. 0.03%, Slt; 0.03%, and the balance being Fe and inevitable impurities. Alloy components are optimized, the alloy components interact to promote the types and the number of nanoscale precipitates and submicron precipitates in the bainite steel, and the processes of graded heating, multi-stage water-air alternate quenching, mutual cooperation of hot rolling and warm rolling and tempering treatment are sequentially carried out to refine grains, increase the dislocation number and promote precipitation, so th