[1]付娅琦,杨海强,罗芷晴,等.doi: 10.3969/j.issn.1001-3849.2026.05.010Cr12MoV模具钢的激光熔覆涂层性能[J].电镀与精饰,2026,(05):65-72.
　FU Yaqi,YANG Haiqiang,LUO Zhiqing,et al.Properties of laser cladding coating for Cr12MoV die steel[J].Plating & Finishing,2026,(05):65-72.
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doi: 10.3969/j.issn.1001-3849.2026.05.010Cr12MoV模具钢的激光熔覆涂层性能()

《电镀与精饰》[ISSN:1001-3849/CN:12-1096/TG]

卷:
期数:
2026年05
页码:
65-72
栏目:
出版日期:
2026-05-31

文章信息/Info

Title:
Properties of laser cladding coating for Cr12MoV die steel
作者:
付娅琦1; 杨海强1; 罗芷晴2; 安熙偌2
(1. 安阳职业技术学院 机电工程学院,河南 安阳 4 55000;2. 郑州大学 材料科学与工程学院,河南 郑州 450001)
Author(s):
FU Yaqi1;  YANG Haiqiang1;  LUO Zhiqing2;  AN Xiruo2
(1. School of Mechanical and Electrical Engineering, Anyang Vocational and Technical College, Anyang 455000, China; 2. School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China)
关键词:
模具钢; 激光熔覆; 增强颗粒; 耐磨性能
Keywords:
die steel;  laser cladding;  enhanced particles;  wear resistance
分类号:
TQ110；TG174.4
文献标志码:
A
摘要:
为了提升Cr12MoV模具钢的表面综合性能，采用预置式激光熔覆方式对Cr12MoV模具钢进行表面激光熔覆处理，对比分析了Fe基熔覆层以及添加SiC、La2O3和B4C后的增强熔覆层的物相组织、显微形貌、硬度、断裂韧性和耐磨性能。结果表明：当在Fe基熔覆层中添加SiC、La2O3和B4C后，熔覆层中出现了更多的硬质相颗粒，且熔覆层中都未见明显裂纹、孔洞等缺陷，熔覆层与Cr12MoV模具钢基体实现了良好的冶金结合；Fe基和增强熔覆层的平均硬度从高至低顺序为：熔覆层>基体>过渡区；3种增强熔覆层的断裂韧性都高于Fe基熔覆层。相同载荷条件下，La2O3、B4C和SiC增强熔覆层的平均摩擦系数都要小于Fe基熔覆层，La2O3增强熔覆层由于具有较高的硬度、最高的断裂韧性和均匀的组织特征，耐磨性能最佳。
Abstract:
In order to improve the surface comprehensive performance of Cr12MoV die steel, a pre-set laser cladding method was used for surface laser cladding treatment on Cr12MoV die steel. The phase structure, microstructure, hardness, fracture toughness, and wear resistance of Fe-based cladding layer and reinforced cladding layers doped with SiC, La2O3, and B4C were compared and analyzed. The results show that the addition of SiC, La2O3, and B4C to the Fe-based cladding layer resulted in the formation of more hard phase particles in the cladding layer. No significant defects such as cracks or holes were observed in the cladding layer. The cladding layer achieves better metallurgical bonding with the Cr12MoV mold steel substrate. The average hardness of Fe-based and enhanced cladding layers are in the following order from highest to lowest: cladding layer>substrate>transition zone. The fracture toughness of the three reinforced cladding layers is higher than that of the Fe-based cladding layer. Under the same loading conditions, the average friction coefficient of La 2O3, B4C, and SiC reinforced cladding layers were lower than that of Fe-based cladding layer. The La 2O3 reinforced cladding layer demonstrated the best wear resistance due to its high hardness, highest fracture toughness, and uniform microstructure.

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更新日期/Last Update: 2026-05-12