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Ti6Al4V表面丝粉同步激光熔覆制备复合材料层工艺研究

Compound Layer Fabricated by Coincident Wire-Powder Laser Cladding on Ti-6Al-4V Surface

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摘要

Ti-6Al-4V具有比强度高的优点,在航空航天、石油化工等领域得到了应用。但Ti-6Al-4V耐摩性差,限制了其应用。针对Ti-6Al-4V耐磨性差的问题,采用激光熔覆技术在Ti-6Al-4V基材表面通过旁轴添加与基材同质的Ti-6Al-4V丝材,同轴送入WC颗粒作为强化相的方式制备表面WC颗粒增强钛基复合材料层。研究了激光功率、扫描速度、送丝速度、送粉量等工艺参数对于表面复合材料层的影响。采用SEM、EDS以及XRD对复合材料层的显微组织进行了观察研究,发现复合材料层中主要包括α-Ti、WC、W2C、TiC、W、(W,Ti)C1-x相。

Abstract

Due to its high specific strength, Ti-6Al-4V has been widely used. However, the application of titanium alloy is restricted due to its poor tribological properties such as high friction coefficient and low hardness. In this paper, cladding of metal matrix composites(MMC)layer on Ti-6Al-4V substrate by coincident wire-powder laser deposition was conducted. During experiment, powder was fed from a coaxial nozzle and wire was fed from a lateral nozzle into the deposition melt pool. Influence of laser power, scan speed, wire feeding speed and powder feeding rate was investigated. Microstructure of composites layer was analyzed by SEM, EDS, XRD. It has shown that composite layer mainly comprises α-Ti、WC、W2C、TiC、W、(W,Ti)C1-xphase.

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中图分类号:TG174.453

DOI:10.3788/al20143406.471

基金项目:国家自然科学基金资助项目(项目编号:51175114)

收稿日期:2014-07-29

修改稿日期:2014-10-20

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李福泉:哈尔滨工业大学 先进焊接与连接国家重点实验室,黑龙江 哈尔滨 150001
高振增:哈尔滨工业大学 先进焊接与连接国家重点实验室,黑龙江 哈尔滨 150001
李俐群:哈尔滨工业大学 先进焊接与连接国家重点实验室,黑龙江 哈尔滨 150001
陈彦宾:哈尔滨工业大学 先进焊接与连接国家重点实验室,黑龙江 哈尔滨 150001
乔亮:哈尔滨工业大学 先进焊接与连接国家重点实验室,黑龙江 哈尔滨 150001

联系人作者:李福泉(lifuquan@hit.edu.cn)

备注:李福泉(1972-),男,博士,副教授,主要从事激光表面工程及增材制造领域的研究。

【1】BOYER R R.An overview on the use of titanium in the aerospace industry [J].Materials Science and Engineering A,2006(213): 103-114.

【2】李梁,孙健科,孟祥军.钛合金的应用现状及发展前景[J].钛工业进展,2004,21(5): 19-24.

【3】ELIAS C N.Biomedical application of titanium and its alloys[J].Biological Materials Science,2008,7(3): 46-49.

【4】赵玉涛,戴起勋,陈刚.金属基复合材料[M].北京: 机械工业出社,2007: 22.

【5】FARAYIBI P K,FOLKES J A,CLARE A T.Laser deposition of Ti-6Al-4V wire with WC powder for functionally graded components[J].Materials and Manufacturing Processes,2013,28(5): 514-518.

【6】LI L,LIU D,CHEN Y,et al.Electron microscopy study of reaction layers between single-crystal WC particle and Ti-6Al-4V after laser melt injection[J].Acta Materialia,2009,57(12): 3606-3614.

【7】SYED W U H,Pinkerton A J, LIU Z,et al.Single-step Laser Deposition of Functionally Coating by Dual ‘Wire-Powder’ or ‘Powder-Powder’ Feeding—A Comparative Study[J].Applied Surface Science, 2007, 253(19): 7926-7931.

【8】SYED W U H,PINKERTON A J,LIU Z,et al.Coincident wire and powder deposition by laser to form compositionally graded material[J].Surface and Coatings Technology,2007,201(16): 7083-7091.

【9】WANG F,MEI J,JIANG H,et al.Laser fabrication of Ti-6Al-4V/TiC composites using simultaneous powder and wire feed[J].Materials Science and Engineering A,2007(445): 461-466.

【10】WANG F,MEI J,WU X.Microstructure study of direct laser fabricated Ti alloys using powder and wire [J].Applied Surface Science,2006,253(3): 1424-1430.

【11】武万良,黄问荣,杨德庄,等.Ti-6Al-4V激光熔覆材料合金体系与熔覆工艺研究[J].新技术新工艺,2003(9): 41-43.

【12】刘德健.激光熔注单晶颗粒增强WCp/Ti-6Al-4V梯度复合材料层的界面反应机理[D].哈尔滨: 哈尔滨工业大学,2009.

引用该论文

Li Fuquan,Gao Zhenzeng,Li Liqun,Chen Yanbin,Qiao Liang. Compound Layer Fabricated by Coincident Wire-Powder Laser Cladding on Ti-6Al-4V Surface[J]. APPLIED LASER, 2014, 34(6): 471-476

李福泉,高振增,李俐群,陈彦宾,乔亮. Ti6Al4V表面丝粉同步激光熔覆制备复合材料层工艺研究[J]. 应用激光, 2014, 34(6): 471-476

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