Publication number: 20250043371
Abstract: A composite additive for forming inclusions with a core-shell structure, a preparation method and a smelting method are provided. The composite additive includes the following chemical components by mass percentage: Fe: 41-59%, Zr: 5-11%, Ti: 14-26%, Mg: 11-19%, and RE: 4-10%, in which the mass percentage content of Zr element, Ti element, Mg element and RE element satisfies a formula: (Ti+Mg+RE)/Zr=4-8. The composite additive for forming inclusions with a core-shell structure has the characteristics of fineness, spheroidization and obvious dispersion effect. This type of inclusions has a bulk modulus similar to that of the iron matrix, which can significantly improve the plasticity, toughness, fatigue resistance, local corrosion resistance, welding performance, cold bending performance, etc. of steel materials, suitable for steel types with strict requirements on the shape of inclusions, such as marine steel, pipeline steel, container steel, cold heading steel, tool and die steel, etc.
Type:
Application
Filed:
February 8, 2024
Publication date:
February 6, 2025
Applicants:
WUHAN UNIVERSITY OF SCIENCE AND TECHNOLOGY, WUKE XINCAI (WUHAN) TECHNOLOGY CO., LTD., WUKE COMPOSITE MATERIALS (HAIKOU) TECHNOLOGY CO., LTD., SINO-ENERGY HUAYUAN FLOATING WIND INSTITUTE
Inventors:
Kaiming WU, Shaoguan XIANG