王泽旺,张寰,赵程.氩弧熔覆 TiC 颗粒增强 Fe 基涂层组织性能研究[J].表面技术,2014,43(5):51-54,75.
WANG Ze-wang,ZHANG Huan,ZHAO Cheng.Study on Microstructure and Properties of TiC-Fe45-based Composite Coating by Argon Tungsten-arc Cladding[J].Surface Technology,2014,43(5):51-54,75 |
| 氩弧熔覆 TiC 颗粒增强 Fe 基涂层组织性能研究 |
| Study on Microstructure and Properties of TiC-Fe45-based Composite Coating by Argon Tungsten-arc Cladding |
| 投稿时间：2014-04-17 修订日期：2014-05-10 |
| DOI： |
| 中文关键词: 氩弧熔覆 铁基自 熔性合金粉末 TiC 增强 复合涂层 耐磨性 |
| 英文关键词:argon tungsten-arc cladding Fe-base self-fluxing alloy powder TiC reinforcement composite coating wear resistance |
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| 中文摘要: |
| 目 的 研究氩弧熔覆条件下 TiC 颗粒增强 Fe 基涂层的组织和性能。 方法 在 Fe45 自 熔性合金粉末中添加 TiC 颗粒, 利 用 氩弧熔覆技术在 Q235 钢基材表面制备出 含 TiC 颗粒增强的 Fe 基合金复合涂层, 并对熔覆层的显微组织结构、硬度分布及耐磨性能进行分析研究。 结果 复合涂层是由( Fe, Ni) 形成的枝晶和枝晶间 的( Fe, Cr)23( C, B) 6, Fe3( C, B) 共晶组织以及 TiC 增强颗粒组成, TiC 颗粒细小弥散分布在基体金属内 , 部分 TiC 颗粒聚集生长为 棒状、 十字状和放射状。 结论 熔覆层的 显微硬度最高 可达980HV, 较 Q235 钢提高了 4 倍, 耐磨性提高了 约 11 倍。 |
| 英文摘要: |
| Objective To study the microstructure and properties of TiC-Fe45-based composite coating by argon tungsten-arc cladding. Methods Through addition of Tic particles into the Fe45 self-fluxing alloy powder, the composite coating of Fe-based alloy reinforced by TiC particles was prepared by argon tungsten-arc cladding process. The microstructure, microhardness distribution and wear resistance of the coating were analyzed. Results The composite coating was composed of the dendritic ( Fe, Ni) -based matrix, interdendritic ( Fe, Cr)23( C, B) 6, Fe3( C, B) eutectic structure and TiC reinforcement particles. The TiC particles were dispersedly embedded into the matrix, and part of the particles were congregated into virgate, cross and radial shapes. Conclusion The microhardness of the composite coating could reach 980 HV, which was more than four times that of the substrate and the wear resistance was increased by nearly 11 times. |
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