High-toughness wear-resistant high-manganese steel material and method for manufacturing same

By optimizing the elemental composition and preparation process of high-manganese steel, adding rare earth elements and tungsten carbide, and adopting core-shell structure and pulsed micro-hole injection molding technology, the problem of insufficient toughness in modified high-manganese steel was solved, and the high toughness and wear resistance were improved.

CN116695004BActive Publication Date: 2026-06-12CHANGZHOU YIFUTAI SPECIAL STEEL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHANGZHOU YIFUTAI SPECIAL STEEL CO LTD
Filing Date
2023-04-14
Publication Date
2026-06-12

AI Technical Summary

⚠Technical Problem

While existing modified high-manganese steel materials improve wear resistance, their toughness and strength are reduced, resulting in insufficient toughness.

⚗Method used

By optimizing the elemental composition of high-manganese steel, adding rare earth elements and tungsten carbide, and using wettable modified alloys and core-shell structured composite core-shell particles, combined with pulse micro-hole injection molding technology, the preparation process and heat treatment process are optimized to improve the toughness and wear resistance of the material.

🎯Benefits of technology

It significantly improves the toughness and wear resistance of high manganese steel, enhances the structural strength and dimensional stability of the material, and solves the problem of insufficient toughness.

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Abstract

This application relates to the field of alloy steel materials, and more specifically, to a high-toughness, wear-resistant high-manganese steel material and its preparation method. A high-toughness, wear-resistant high-manganese steel material comprises the following components by weight: 1.15–1.68 parts C, 12.3–15.5 parts Mn, 0.25–1.18 parts Si, 0.02–0.05 parts P, 75–80 parts Fe, and 0.005–0.0125 parts rare earth elements, wherein the rare earth elements include one or more of La, Ce, Eu, and Y. The technical solution of this application further defines the elemental composition of the steel material. The optimized steel material composition effectively controls the Mn content, resulting in a steel material with good wear resistance and high toughness strength. Furthermore, this application further improves the toughness strength of the steel material by adding rare earth elements.
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