采用组合设计策略高效开发新型低成本耐磨fe481 mn18.0 ni9.8 v9.1 al6.7 cr5.3 ti3.0多组分合金

IF 5.7 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Research Bulletin Pub Date : 2025-07-18 DOI:10.1016/j.materresbull.2025.113669

Qing-Xiao Wu , Qun Zou , Bo Li , Ge-Mei Cai

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引用次数: 0

摘要

目前的耐磨HEAs一般都是在CrFeCoNi的基础上进行探索，而Co的价格昂贵且存在环境风险，阻碍了其商业化。本工作通过结合经验准则的扩散策略，高效地开发出了一种成分为Fe48.1Mn18.0Ni9.8V9.1Al6.7Cr5.3Ti3.0的新型低成本耐磨多组分合金（MCA）。经1000℃固溶处理、700℃时效处理后，为晶粒细小、分布均匀的双bcc复合组织。该合金具有优异的硬度和耐磨性，硬度和磨损率分别为790.2 HV和1.106 × 10-5 mm³/N·m，优于市产SKH51。其磨损机理为脱层磨损和磨粒磨损。该研究为高熵耐磨合金的发展提供了新的思路，展示了高熵耐磨合金的巨大工程应用潜力。

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Efficient development of new low-cost and wear-resistant Fe48.1Mn18.0Ni9.8V9.1Al6.7Cr5.3Ti3.0 multi-component alloy via combinatorial design strategy

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Efficient development of new low-cost and wear-resistant Fe48.1Mn18.0Ni9.8V9.1Al6.7Cr5.3Ti3.0 multi-component alloy via combinatorial design strategy

Current wear-resistant HEAs are generally explored on the base of CrFeCoNi, in which Co is expensive and poses environmental risks, hindering their commercialization. Via diffusion strategy combining the empirical criteria, this work efficiently developed a new type of low-cost and wear-resistant multi-component alloy (MCA) with the composition of Fe_48.1Mn_18.0Ni_9.8V_9.1Al_6.7Cr_5.3Ti_3.0. After solution treatment at 1000 ° C and then aged at 700 ° C, it indicates a dual bcc composite structure with fine and uniformly distributed grains. This alloy exhibits excellent hardness and wear resistance, with the hardness and wear rate of 790.2 HV and 1.106 × 10^-5 mm ³/N · m, respectively, superior to commercial SKH51. Its wear mechanism is ascribed to delamination wear and abrasive wear. This study provides a new idea for the development of wear-resistant high entropy alloys and demonstrates their enormous potential in engineering applications.

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来源期刊

Materials Research Bulletin 工程技术-材料科学：综合

CiteScore

9.80

自引率

5.60%

发文量

372

审稿时长

42 days

期刊介绍： Materials Research Bulletin is an international journal reporting high-impact research on processing-structure-property relationships in functional materials and nanomaterials with interesting electronic, magnetic, optical, thermal, mechanical or catalytic properties. Papers purely on thermodynamics or theoretical calculations (e.g., density functional theory) do not fall within the scope of the journal unless they also demonstrate a clear link to physical properties. Topics covered include functional materials (e.g., dielectrics, pyroelectrics, piezoelectrics, ferroelectrics, relaxors, thermoelectrics, etc.); electrochemistry and solid-state ionics (e.g., photovoltaics, batteries, sensors, and fuel cells); nanomaterials, graphene, and nanocomposites; luminescence and photocatalysis; crystal-structure and defect-structure analysis; novel electronics; non-crystalline solids; flexible electronics; protein-material interactions; and polymeric ion-exchange membranes.