强激光与粒子束, 2014, 26 (12): 129001, 网络出版: 2015-01-08   

碳化钨对激光熔覆高熵合金的影响

Effect of wolfram carbide particles on high entropy alloy coating prepared by laser cladding
作者单位
1 贵州大学 材料与冶金学院, 贵阳 550025
2 贵州省材料结构与强度重点实验室, 贵阳 550025
摘要
为了获得高性能的涂层材料,采用激光熔覆的方法,在Q235钢基体上制备了FeSiCrCoMo高熵合金涂层, 并研究了WC对高熵合金涂层的组织和性能的影响。通过金相、X射线衍射、扫描电镜、硬度计、磨损试验机分别研究了添加WC前后涂层的微观形貌、相结构、硬度及磨损性能。结果表明: 高熵合金FeSiCrCoMo涂层组织为粗大枝状晶,主要由BCC相和金属间化合物构成,添加WC后,涂层中形成了致密细小的胞状晶,同时BCC相增多,金属间化合物明显减少;添加WC后涂层的硬度明显增强,平均硬度提升了23%,涂层表面平均硬度达到了687 HV0.2;WC的添加使得涂层的摩擦系数减小,磨损率减小,耐磨性能提高。
Abstract
To obtain the coating with excellent properties, FeSiCrCoMo high entropy alloy(HEA)coatings on Q235 steel were prepared by laser cladding. The effect of adding WC on microstructure and properties of the HEA coatings were investigated. By means of OM, XRD, SEM, microhardness test and hardmeter abrasion tester, the microstructure, phase structure, hardness and wear resistance of the coatings adding WC and without adding WC were studied. The experimental results indicate that the microstructure of the FeSiCrCoMo HEAs coating is dendrite, the coating is mainly composed of body centered cubic(BCC)with intermetallics. The microstructure of the coating with WC is grain cellular crystal, at the same time, the BCC phase increase and intermetallics decrease. The mechanical properties of the coating are also enhanced by adding WC. With WC added, the average hardness of the coating increases by 23%, the average hardness of coating reaches 687HV0.2;on the other hand, the wear rate decreases and wear resistance increases, hence the wear-resisting performance improves.
参考文献

[1] Yeh J W, Chang S Y, Hong Y D, et al. Anomalous decrease in X-ray diffraction intensities of CuNiAlCoCrFe Si alloy systems with muti-principal elements[J]. Materials Chemistry and Physics, 2007, 103: 41-46.

[2] Zhang Yong, Zuo Tingting, Tang Zhi, et al. Microstructures and properties of high-entropy alloys[J]. J Progress Materials Science, 2014,61:1-90

[3] Chen T K, Shun T T, Wei Y J, et al. Nanostructured nitride films of multi-element high entropy alloys by reactive DC sputtering[J]. Surface & Coatings Technology,2005, 200:1361-1365.

[4] 邱星武,张云鹏. 高熵合金的特点及研究现状[J]. 稀有金属及硬质合金,2012, 40(1):44-47.(Qiu Xingwu, Zhang Yunpeng. The characteristics of high-entropy alloys and their latest development. Rare Metals and Cemented Carbides, 2012,40(1): 44-47)

[5] 李亚峰,孔利军,甘章华,等. FeNiMnCuC0. 2Alx 高熵合金结构及性能研究[J]. 武汉科技大学学报,2009, 32(1): 60-63.(Li Yafeng, Kong Lijun,Gan Zhanghua, et al. Preparation and properties of FeNiMnCuC0.2Alx high-entropy alloy. Journal of Wuhan University of Science and Technology, 2009,32(1): 60-63)

[6] 任明星,李邦盛. CrFeCoNiCu多主元高熵合金的相分析[J]. 材料工程,2012(1):9-12.(Ren Mingxing, Li Bangsheng. Phase analysis of CrFeCoNiCu high entropy alloy. Journal of Materials Engineering, 2012(1):9-12)

[7] 蔡建宾,吴宇建,张冬冬,等.Al0.5CoCrFeNiBx多主元高熵合金的组织结构和力学性能[J].稀有金属与硬质合金,2011, 39(4): 37-40.(Cai Jianbin, Wu Yujian, Zhang Dongdong, et al. Microstructure and mechanical property of high entropy alloy with multi-principal elements. Rare Metals and Cemented Carbides, 2011, 39(4): 37-40)

[8] 姚陈忠,马会宣,童叶翔. 非晶纳米高熵合金薄膜NdFeCoNiMn的电化学制备及磁学性能[J]. 应用化学,2011, 28(10): 1189-1194.(Yao Chenzhong, Ma Huixuan, Tong Yexiang. Electrochemical preparation and magnetic study of amorphous nanostructured NdFeCoNiMn high entropy alloy film. Chinese Journal of Applied Chemistry, 2011, 28(10): 1189-1194)

[9] Laktionova M A, Abchnikova E D, Liaw P K. Mechanical properties of the high-entropy alloy Ag0.5CoCrCuFeNi at temperatures of 4.2-300 K[J]. Low Temperature Physics, 2013, 39(7):814-817.

[10] 张晖,潘冶,何宜柱.激光熔覆FeCoNiCrAl2Si高熵合金涂层[J].金属学报,2011,47(8): 1075-1079.(Zhang Hui, Pan Ye, He Yizhu. Laser cladding FeCoNiCrAl2Si high entropy alloy catting. Acta Metallurgica Sinica, 2011,47(8): 1075-1079)

[11] 张辉,邹勇,邹增大,等. Cr对TIC-VC增强铁基熔覆层耐蚀性及耐磨性的影响[J]. 强激光与粒子束,2014, 26: 031015.(Zhang Hui, Zou Yong, Zou Zengda, et al. Effect of Cr on corrosion and wear resistances of TiC-VC reinforced ferrite-based laser cladding coatings. High Power Laser and Particle Beams, 2014, 26: 031015)

[12] 王东生,田宗军,沈理达,等. 激光表面熔覆制备纳米结构涂层的研究进展[J]. 中国激光,2008, 35(11): 1699-1780.(Wang Dongsheng, Tian Zongjun, Shen Lida, et al. Research development of nanostructured coatings prepared by laser cladding. Chinese Journal of Lasers,2008,35(11): 1699-1780)

[13] 黄祖凤,张冲,唐群华,等. WC颗粒对激光熔覆FeCoCrNiCu高熵合金涂层组织与硬度的影响[J]. 中国表面工程, 2013,26(1):13-19.(Huang Zufeng, Zhang Chong, Tang Qunhua, et al. Effect of WC particles on the microstructure and hardness of FeCoCrNiCu high entropy alloy coating prepared by laser cladding. China Surface Engineering,2013, 26(1):13-19)

[14] 黄伟容,肖泽辉. AZ91D 镁合金表面激光熔覆Ni基+WC合金涂层[J]. 中国激光,2009,36(12): 3267-3271.(Huang Weirong, Xiao Zehui. Laser surface cladding of AZ91D magnesium alloy with Ni-based and WC powders. Chinese Journal of Lasers, 2009,36(12): 3267-3271)

[15] 颜永根,斯松华,张晖. 激光熔覆Co+Ni/WC复合涂层的组织和磨损性能[J]. 焊接学报,2007,28(7): 21-24.(Yan Yonggen, Si Songhua, Zhang Hui, et al. Microstructure and wear resistance of laser cladding Co+Ni/WC alloy composite coating. Transactions of the China Welding Institution, 2007,28(7): 21-24)

[16] 黄雪. 激光熔覆钴基合金加碳化钨混合粉末熔覆层性能的研究[D]. 沈阳: 沈阳工业大学,2012:65-80.(Huang Xue. Research on performance of laser cladding mixed power with Co-based alloy and WC. Shenyang: Shenyang University of Technology,2012:65-80)

[17] 樊增彬. WC/Ni基合金激光熔覆工艺及熔覆层特性研究[D]. 济南: 山东大学,2012:15-20.(Fan Zengbin. The characteristic research of WC/Ni base alloy laser cladding technology and cladding layer. Jinan: Shandong University, 2012:15-20)

安旭龙, 刘其斌, 郑波. 碳化钨对激光熔覆高熵合金的影响[J]. 强激光与粒子束, 2014, 26(12): 129001. An Xulong, Liu Qibin, Zheng Bo. Effect of wolfram carbide particles on high entropy alloy coating prepared by laser cladding[J]. High Power Laser and Particle Beams, 2014, 26(12): 129001.

本文已被 1 篇论文引用
被引统计数据来源于中国光学期刊网
引用该论文: TXT   |   EndNote

相关论文

加载中...

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!