Effect of Laser Power on Macromorphology, Microstructure and Performance of Ti6Al4V/NiCr-Cr3C2 Cladding Coatings
ZHANG Zhiqiang1, YANG Qian1, YU Ziming1, ZHANG Tiangang1,*, LU Xuecheng1, WANG Hao2
1 School of Aeronautical Engineering, University of Civil Aviation University of China, Tianjin 300300, China 2 School of Mechanical Engineering, Tianjin University of Technology and Education, Tianjin 300222, China
Abstract: Laser power is an important factor affecting the quality of the cladding coatings. In order to reveal the influence of laser power on the forming quality, microstructure, and wear resistance of Ti6Al4V/NiCr-Cr3C2 composite coating, multi-track overlapping TiC reinforced composite coatings were prepared on the surface of Ti6Al4V substrate by laser cladding technology with coaxial powder feeding. The surface cracks, cross-section morphology, porosity, dilution rate, geometric characteristics, and microstructure of the cladding coatings were analyzed by penetration detection, optical microscopy, X-ray diffraction, and scanning electron microscopy (SEM) with energy dispersive spectrometer (EDS). Vickers microhardness tester and friction and wear tester were used to measure the microhardness and wear resistance of the cladding coatings. Finally, the quality of the cladding coatings was evaluated based on the influence of forming, microstructure and performance. The results showed that the laser power had a significant effect on the forming quality of the cladding coating. When the laser power was 1 100 W and 1 300 W, there were many defects such as cracks and pores on the surface of the cladding coating. With the increase of laser power, the melting height, melting width, melting depth, and dilution rate of the cladding coating were improved continuously. However, the crack rate and porosity continued to decrease. The laser power had little effect on the types of phases in the coatings, and the main phases were the reinforcement phase TiC and the matrix phase CrTi4. When the laser power was 1 500 W and 1 700 W, the hardness of the cladding coating was high, and the wear rate was low. Considering the influence of laser power on the cladding coatings in many aspects, the optimal laser power was finally determined as 1 500 W. The cladding coating prepared under this laser power had good forming quality and excellent wear resistance.
通讯作者:
*张天刚,中国民航大学航空工程学院副教授、硕士研究生导师。2005年至今一直在中国民航大学工作,于2016年获得天津工业大学博士学位。目前主要从事金属材料激光表面改性与金属材料激光再制造等方面的研究。发表论文50余篇,包括Journal of Alloys and Compounds、Materials Letters、Materials Science and Engineering: A、Journal of Materials Research and Technology、Journal of Materials Engineering and Performance、Ceramics International等。tgzhang@cauc.edu.cn
1 Li Y, Zhao Y Q, Zeng W D. Materials Reports, 2020, 34(S1), 280 (in Chinese). 李毅, 赵永庆, 曾卫东. 材料导报, 2020, 34(S1), 280. 2 Tan J H, Sun R L, Niu W, et al. Materials Reports, 2020, 34(15), 15132 (in Chinese). 谭金花, 孙荣禄, 牛伟, 等. 材料导报, 2020, 34(15), 15132. 3 Gu J, Liu Z P, Xu Y J, et al. Applied Laser, 2020, 40(3), 547 (in Chinese). 顾俊, 刘钊鹏, 徐友钧, 等. 应用激光, 2020, 40(3), 547. 4 Zhang L T, Liu D X, Zhang W Q, et al. Surface Technology, 2020, 49(8), 97 (in Chinese). 张蕾涛, 刘德鑫, 张伟樯, 等. 表面技术, 2020, 49(8), 97. 5 Li H B, Gao Q Q, Li K Y, et al. Chinese Journal of Lasers, 2021, 48(18), 163 (in Chinese). 李洪波, 高强强, 李康英, 等. 中国激光, 2021, 48(18), 163. 6 Xia T C, Liu T, Zhang L, et al. Heat Treatment of Metals, 2021, 46(5), 196 (in Chinese). 夏同川, 刘汀, 张林, 等. 金属热处理, 2021, 46(5), 196. 7 Zhang Z Q, Yang F, Zhang H W, et al. Materials Characterization, 2021, 171, 110732. 8 Zhang Z Q, Yang F, Zhang H W, et al. Acta Aeronautica et Astronautica Sinica, 2021, 42(7), 43 (in Chinese). 张志强, 杨凡, 张宏伟, 等. 航空学报, 2021, 42(7), 43. 9 Meng G R, Zhu L D, Zhang J D, et al. Optik, 2021, 240, 166828. 10 Monammed J K, Sami I A, Ali S H. Optics and Lasers in Engineering, 2013, 51(2), 159. 11 Deng D W, Chang Z D, Ma Y B, et al. Applied Laser, 2021, 41(1), 83 (in Chinese). 邓德伟, 常占东, 马云波, 等. 应用激光, 2021, 41(1), 83. 12 Shen Y H, Zhang Y L, Li T, et al. Journal of Dalian University of Technology, 2017, 57(3), 247 (in Chinese). 沈毅鸿, 张元良, 李涛, 等. 大连理工大学学报, 2017, 57(3), 247. 13 Nie M H, Zhang S, Wang Z Y, et al. Materials Chemistry and Physics, 2022, 275, 125236. 14 Shu F Y, Zhang B L, Liu T, et al. Surface and Coatings Technology, 2019, 358, 667. 15 Yang G F, Gao F, Cui J. Surface Technology, 2023, 52(1), 346 (in Chinese). 杨广峰, 郜峰, 崔静. 表面技术, 2023, 52(1), 346. 16 Liang W X, Yang Y, Qi K, et al. Surface and Coatings Technology, 2021, 427, 127816. 17 Zhao S G, Li C L. Hot Working Technology, 2016, 45(16), 149 (in Chinese). 赵树国, 李成龙. 热加工工艺, 2016, 45(16), 149. 18 Liu G Z, Zhong W H, Gao Y. Surface Technology, 2012, 41(5), 89 (in Chinese). 刘贵仲, 钟文华, 高原. 表面技术, 2012, 41(5), 89. 19 Chen Z J, Zhang Q L, Lou C H, et al. Applied Laser, 2013, 33(1), 7 (in Chinese). 陈智君, 张群莉, 楼程华, 等. 应用激光, 2013, 33(1), 7. 20 Song W L, Zhu B D, Gan C H, et al. Chinese Journal of Lasers, 1995, 22(4), 309 (in Chinese). 宋武林, 朱蓓蒂, 甘翠华, 等. 中国激光, 1995, 22(4), 309. 21 Li Z G, Peng B. Materials Protection, 2016, 49(11), 61 (in Chinese). 李振纲, 彭波. 材料保护, 2016, 49(11), 61. 22 Hou S X, Zhao J K, Li Q, et al. Materials Reports, 2022, 36(S1), 388 (in Chinese). 侯锁霞, 赵江昆, 李强, 等. 材料导报, 2022, 36(S1), 388. 23 Lv X R, Ma X W, Dong L H, et al. Journal of Functional Materials, 2020, 51(6), 6034 (in Chinese). 吕晓仁, 马孝威, 董丽虹, 等. 功能材料, 2020, 51(6), 6034. 24 Halsarav B, Saha P. Materials Today:Proceedings, 2018, 5(5), 13090. 25 Zhou C Y, Zhao S S, Wang Y B, et al. Journal of Materials Processing Technology, 2015, 216, 369. 26 Mohammad N, Reza S R, Masoud B. Optics and Laser Technology, 2018, 100, 265. 27 Yang D, Ning Y H, Zhu Y G, et al. Materials Reports, 2017, 31(24), 133 (in Chinese). 杨丹, 宁玉恒, 赵宇光, 等. 材料导报, 2017, 31(24), 133. 28 Jin Y X, Liu S W. Rare Metal Materials and Engineering, 2005, 34(10), 24 (in Chinese). 金云学, 刘夙伟. 稀有金属材料与工程, 2005, 34(10), 24. 29 Liu Y N, Sun R L, Zhang T G. Heat Treatment of Metals, 2018, 43(9), 16 (in Chinese). 刘亚楠, 孙荣禄, 张天刚. 金属热处理, 2018, 43(9), 16.
渝公网安备50019002502923号 版权所有：《材料导报》编辑部
2024, Vol. 38 
