Ti811表面激光熔覆原位合成TiC-TiB<sub>2</sub>复合Ti基涂层的微观组织分析

doi:10.11896/j.issn.1005-023X.2018.13.011

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Abstract A multipass TC4 and Ni45 laser cladded layer was prepared on the surface of Ti811 titanium alloy by coaxial powder feeding. Subsequently, the X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS) and microhardness measurment were adopted to analyze the microstructure, phase composition and performance of the obtained coating. The experiment results confirmed the main uniformly-distributed precipitates in the clad layer, including α-Ti substrate, Ti₂Ni intermetallic compound, TiC and TiB₂ reinforcement phase. A large amount of TiC/TiB₂ multi-phase structures distri-bute in the layer, which consist of the heterogeneous nucleation of spherical or subspheroidal TiC particles on the strip TiB₂ surface, and there are numerous nano-TiC particles dispersed in the substrate. The combined action of TiC and TiB₂ benefits significantly the cladded layer’s hardness, as the highest microhardness is about 770HV_0.5, which is almost twice the value of the substrate.

Key words： Ti811 laser cladding titanium carbide titanium diboride microhardness

Published: 01 August 2018

CLC number:	TG174.44
	TG156.99

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	Articles by authors
	ZHANG Tiangang
	SUN Ronglu
	ZHANG Xueyang
	LIU Yanan

Cite this article:

ZHANG Tiangang,SUN Ronglu,ZHANG Xueyang, et al. Microstructure of In-situ Synthesized Ti Based TiC-TiB₂ Composite Coating on Surface of Ti811 Alloy by Laser Cladding[J]. Materials Reports, 2018, 32(13): 2208-2213.

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http://www.mater-rep.com/EN/10.11896/j.issn.1005-023X.2018.13.011 OR http://www.mater-rep.com/EN/Y2018/V32/I13/2208

1 Huang Zhanghong, Qu Henglei, Deng Chao, et al. Development and application of aerial titanium and its alloys[J].Materials Review A: Review Papers,2011(1):102(in Chinese).
黄张洪,曲恒磊,邓超,等.航空用钛及钛合金的发展及应用[J].材料导报:综述篇,2011(1):102.
2 Zhang Lijun, Wang Xingyun, Guo Qiyi, et al. Application of tita-nium alloy in Chinese aircraft fastener[J].Aeronautical Manufactu-ring,2013(16):129(in Chinese).
张利军,王幸运,郭启义,等.钛合金材料在我国航空紧固件中的应用[J].航空制造技术,2013(16):129.
3 Yuan Guosen, Yan Lipeng, Han Yanyan. Application progress of titanium alloy[J].Hot Working Technology,2017(4):13(in Chinese).
原国森,兖利鹏,韩艳艳.钛合金的应用进展[J].热加工工艺,2017(4):13.
4 Wang Dongsheng, Tian Zongjun, Shen Lida, et al. Research status and development of laser cladding technology[J].Applied Laser,2012,32(6):538(in Chinese).
王东生,田宗军,沈理达,等.激光熔覆技术研究现状及其发展[J].应用激光,2012,32(6):538.
5 Fan X G, Yang H, Gao P F, et al. Dependence of microstructure morphology on processing in substransus is othermal local loading forming of TA15 titanium alloy[J].Materials Science and Enginee-ring A,2012,546:46.
6 Wang C. Microstructure and temperature field researches on laser in situ formation of (TiBx+TiC)/TiNi composite coatings[D]. Shen-yang: Northeastern University,2014(in Chinese).
王超.激光诱导原位合成(TiB_x+TiC)/TiNi复合涂层温度场及显微组织性能研究[D].沈阳:东北大学,2014.
7 Sun Ronglu, Lyu Weixin, Yang Xianjin.Microscopic morphology and distribution of TiC phase in laser clad TiC NiCrSi cermet layer[J].Journal of the Chinese Ceramic Society,2005(12):1448(in Chinese).
孙荣禄,吕伟鑫,杨贤金.激光熔覆TiC-NiCrBSi金属陶瓷涂层中TiC相的形态及分布特征[J].硅酸盐学报,2005(12):1448.
8 Qi Jiqiu. Microstructure and high-temperature deformation behavior of TiC reinforced high-temperature titanium alloy matrix composites produced by melting-casting process[D].Harbin: Harbin Institute of Technology,2013(in Chinese).
戚继球.熔铸法制备TiC增强高温钛合金基复合材料组织与高温变形行为[D].哈尔滨:哈尔滨工业大学,2013.
9 Yin Laisheng. Microstructure and mechanical properties of TiC particles reinforced titanium matrix composites[D].Harbin: Harbin Institute of Technology,2010(in Chinese).
尹来胜.TiC颗粒增强高温钛合金基复合材料组织与性能研究[D].哈尔滨:哈尔滨工业大学,2010.
10 吕维洁.原位合成钛基复合材料的制备、微结构及力学性能[M].北京:高等教育出版社,2005.
11 Xu Xiaodan, Niu Cheng. Preparation of Al-TiC composite coating by laser cladding technology[J].Plating & Finishing,2012(4):10(in Chinese).
徐晓丹,牛成.激光熔覆技术制备新型Al-TiC复合涂层的研究[J].电镀与精饰,2012(4):10.
12 Luo Tao, Liu Bowei, Liu Yong, et al. TiC reinforced titanium matrix composites prepared by multi-component in-situ synthesis[J].Materials Science and Engineering of Powder Metallurgy,2013(5):680(in Chinese).
罗涛,刘伯威,刘咏,等.多组元原位合成TiC颗粒增强钛基复合材料[J].粉末冶金材料科学与工程,2013(5):680.
13 王自东.非平衡凝固理论与技术[M].北京:机械工业出版社,2011.