原位合成(Ti,V)C增强铁基耐磨复合材料的研制
Investigation on wear resistance of insitu (Ti,V)C reinforced Fe-based composite material
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摘要: 采用激光熔覆技术，通过调节钒含量制备多组Fe-Ti-V-C合金系统. 借助金相、SEM和XRD等分析手段对熔覆层组织和碳化物形貌进行分析. 结果表明，熔覆层中随着钒含量的提高，基体组织由F向F+M转变；颗粒状复合碳化物(Ti,V)C的数量逐渐增多，当加入钒含量超过13.3%时，初生(Ti,V)C形态由颗粒状转变为花瓣状. 此外湿砂磨粒磨损试验表明,适量钒显著改善了熔覆层的耐磨性，当钒含量为13.3%时，大量颗粒状复合碳化物(Ti,V)C均匀弥散分布在铁素体及针状马氏体基体上，使得熔覆层具有最佳的耐磨性.
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关键词:
- 耐磨性 /
- 组织 /
- Fe-Ti-V-C系
Abstract: A series of Fe-Ti-V-C hardfacing alloys with different vadium contents were prepared by laser cladding. The microstructure and carbides morphology were investigated by means of optical microscope(OM) scanning electron microscopy(SEM) and X-ray diffraction(XRD). The results shows that the matrix transforms from ferrite to ferrite plus martensite, the volume fraction of primary (Ti,V)C complex carbides increase as the V content increase, the morphology of primary (Ti,V)C changes from globular to exploded shape when the V content is higher than 13.3%. In addition, the results of wet sand rubber wear tests indicate that proper V content significantly improves the abrasion resistance of hardfacing alloys. when V content is 13.3%, the microstructure characteristic with a high volume fraction of globular(Ti,V)C complex carbides are distributed uniformly and dispersly in the ferrite and lath martensite matrix, which suggests that the cladding layer has a excellent wear resistance.-
Keywords:
- wear resistance /
- microstructure /
- Fe-Ti-V-C alloy system
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[1] Hsieh C C， Liu Y C， Wang J S，etal. Microstructural evolution with various Ti contents in Fe-based hardfacing alloys using a GTAW technique[J]. Metals and Materials International， 2014， 20(4)： 701-712.[2] 王智慧， 赵雪飞， 贺定勇， 等. 等离子熔覆超细碳化铌颗粒增强铁基复合材料中碳化物尺寸的控制[J]. 焊接学报， 2014， 35(4)： 29-32. Wang Zhihui， Zhao Xuefei， He Dingyong，etal. Size control of carbide in plasma cladding Fe-based composite materials strengthened by superfine NbC[J]. Transactions of the China Welding Institution， 2014， 35(4)： 29-32.[3] 龚建勋， 丁 芬， 唐天顺， 等. 硅对自保护明弧堆焊合金Fe-Cr-C-B的显微组织及性能的影响[J]. 焊接学报， 2013， 34(7)： 17-20. Gong Jianxun， Ding Fen， Tang Tianshun，etal. Effect of Si on microstructure and properties of Fe-Cr-C-B self-shielded open arc hardfacing alloys[J]. Transactions of the China Welding Institution， 2013， 34(7)： 17-20.[4] Jilleh A， Babu N K， Thota V，etal. Microstructural and mechanical properties investigation of TiC reinforced hardface alloy deposited on mild steel substrate[J]. Transactions of Indian Institute of Metals， 2013， 66(4)： 433-436.[5] 张 辉， 邹 勇， 邹增大， 等. 石墨添加量对Fe-Ti-V-C熔覆层组织及耐磨性的影响[J]. 摩擦学学报， 2014， 34(3)： 319-323. Zhang Hui， Zou Yong， Zou Zengda，etal. Effect of graphite addition on microstructure and wear resistance of Fe-Ti-V-C cladding layers[J]. Tribology， 2014， 34(3)： 319-323.[6] 尉法兵， 刘海云， 孟庆森， 等. TiB2强化高硬度高耐磨堆焊自保护药芯焊丝堆焊层性能分析[J]. 焊接学报， 2013， 34(3)： 97-100. Wei Fabing， Liu Haiyin， Meng Qingsen，etal. Performance of self-shielded flux-cored wire hardfacing layer with high hardness and abrasion resistance reinforced with TiB2[J]. Transactions of the China Welding Institution， 2013， 34(3)： 97-100.[7] Efremenko V G， Shimizu K， Cheiliakh A P，etal. Effect of vanadium and chromium on the microstructural features of V-Cr-Mn-Ni spheroidal carbide cast irons[J]. International Journal of Minerals， Metallurgy and Materials, 2014， 21(11)： 1096-1106.[8] 杜宝帅， 李清明， 王新洪， 等. 激光熔覆原位自生TiC-VC颗粒增强Fe基金属陶瓷涂层[J]. 焊接学报， 2007， 28(4)： 65-68. Du Baoshuai， Li Qingming， Wang Xinhong，etal. In situ synthesis of TiC-VC particles reinforced Fe-based metal matrix composite coating by laser cladding[J]. Transactions of the China Welding Institution， 2007， 28(4)： 65-68.[9] 彭 涛， 倪 锋， 魏世忠， 等. 高钒铁碳合金中碳化钒的生长机制及形态控制研究综述[J]. 铸造， 2005， 54(7)： 637-641. Peng Tao， Ni Feng， Wei Shizhong，etal. Review on growth mechanism and morphology control of vanadium cardide in Fe-C alloy with high vanadium content[J]. Foudry， 2005， 54(7)： 637-641. -
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