中国激光, 2014, 41 (11): 1103008, 网络出版: 2014-10-08   

氧化锆增韧机制在激光熔覆技术中的应用

Application of Zirconia Toughening Mechanism on Laser Cladding
作者单位
大连理工大学材料科学与工程学院, 辽宁 大连 116024
摘要
陶瓷粉末氧化锆在激光熔覆技术中的主要增韧机制有相变增韧和弥散增韧,将其作为增韧相以适当的比例添加到钴基合金粉末(Stellite-6)中,选择合适的工艺参数,在钛合金TA15表面制备出了掺杂5%(质量分数)氧化锆的钴基合金涂层。实验结果表明:含有氧化锆的钴基合金涂层的晶粒得到细化,组织均匀分布,涂层的致密度得到提高;含有氧化锆熔覆层中的裂纹得到了修复,熔覆层的组织性能得到改善,X射线衍射的分析也证实了熔覆层中存在单斜相的氧化锆,即发生了相变增韧;同时氧化锆的加入提高了熔覆层的显微硬度和耐磨性,从而为改善激光熔覆层的性能提供了一定的参考。
Abstract
Transformation toughening and dispersion toughening are the main toughening mechanisms on zirconia. Zirconia is used as the toughening phase of laser cladding layer, and the TA15 titanium alloy is selected as substrate on which the cobalt-based composite powder (Stellite-6) with 5% (mass friction) of ZrO2 is cladded. The results indicate that zirconia can refine and purify the microstructure of the coating and improve compactness of the coating to some extent. Moreover, the cracks which appear in the coating have been repaired, the microstructure of the coating has been improved. The X-ray diffraction spectrum has proved phase structure of zirconia ceramic in the coating is monoclinic, which has indicated the appearance of transformation toughening. The microhardness and wear resistance of the coating have been improved with the addition of zirconia. This study offers some references for improving the quality of laser cladding layer.
参考文献

[1] 斯松华, 袁晓敏, 何宜柱, 等. 激光熔覆镍基金属陶瓷涂层的组织性能研究[J]. 中国激光, 2002, 29(8): 759-762.

    Si Songhua, Yuan Xiaomin, He Yizhu, et al.. Microstructures and properties of laser clad Ni-based metal-ceramics layers[J]. Chinese J Lasers, 2002, 29(8): 759-762.

[2] 张松, 张春华, 康煜平, 等. 钛合金表面激光熔覆原位生成TiC增强复合涂层[J]. 中国有色金属学报, 2001, 11(6): 1026-1030.

    Zhang Song, Zhang Chunhua, Kang Yuping, et al.. Mechanism of in situ formation of TiC particle reinforced Ti-based composite coating induced by laser melting[J]. Chinese Journal of Nonferrous Metals, 2001,11(6): 1026-1030.

[3] 张松, 张春华, 孙泰礼, 等. 激光熔覆钴基合金组织及其抗腐蚀性能[J]. 中国激光, 2001, 28(9): 860-864.

    Zhang Song, Zhang Chunhua, Sun Taili, et al.. Study on microstructure and corrosion resistance of laser cladding Co-based alloy[J]. Chinese J Lasers, 2001, 28(9): 860-864.

[4] 曾大文, 王毛球, 谢长生. Co基合金激光熔覆层的局部组织特征[J]. 稀有金属材料与工程, 1998, 27(2): 87-91.

    Zeng Dawen, Wang Maoqiu, Xie Changsheng. Microstructural characteristics of a laser clad Co-based alloy[J]. Rare Metal Materials and Engineering, 1998, 27(2): 87-91.

[5] 高雪松, 田宗军, 沈理达, 等. 激光熔覆Al2O3-13% TiO2陶瓷层制备及其抗热震性能[J]. 中国激光, 2012, 39(2): 0203006.

    Gao Xuesong, Tian Zongjun, Shen Lida, et al.. Study on Al2O3-13% TiO2 coatings prepared by laser cladding and thermal shock resistance[J]. Chinese J Lasers, 2012, 39(2): 0203006.

[6] 冯淑容, 张述泉, 王华明. 钛合金激光熔覆硬质颗粒增强金属间化合物复合涂层耐磨性[J]. 中国激光, 2012, 39(2): 0203002.

    Feng Shurong, Zhang Shuquan, Wang Huaming. Wear resistance of laser clad hard particles reinforced intermetallic composite coating on TA15 alloy[J]. Chinese J Lasers, 2012, 39(2): 0203002.

[7] 李嘉宁, 巩水利, 王西昌, 等. TA15-2合金表面激光熔覆Ni基涂层物理与表面性能[J]. 中国激光, 2013, 40(11): 1103008.

    Li Jianing, Gong Shuili, Wang Xichang, et al.. Physical and surface performance of laser clad Ni based coating on a TA15-2 alloy[J] . Chinese J Lasers, 2013, 40(11): 1103008.

[8] 张三川, 姚建铨. 氧化锆掺杂激光熔覆涂层成形、结构与增韧机制[J]. 激光杂志, 2007, 28(2): 73-74.

    Zhang Sanchuan, Yao Jianquan. Study on the forming, structure and toughening mechanism of coating intermingled with ZrO2 by laser cladding[J]. Laser Journal, 2007, 28(2): 73-74.

[9] 王维, 郭鹏飞, 张建中, 等. 超声波对BT20钛合金激光熔覆过程的作用[J]. 中国激光, 2013, 40(8): 0803004.

    Wang Wei, Guo Pengfei, Zhang Jianzhong, et al.. Ultrasonic effect on laser cladding BT20 titanium alloy process[J]. Chinese J Lasers, 2013, 40(8): 0803004.

[10] 牟军, 郦剑, 郭绍义, 等. 氧化错增韧陶瓷的相变及相变增韧[J]. 材料科学与工程, 1994, 12(3): 6-11.

    Mou Jun, Li Jian, Guo Shaoyi, et al.. Transformation and toughening in zirconia toughened ceramics[J]. Materials Science & Engineering, 1994, 12(3): 6-11.

[11] 闫洪, 窦明民, 李和平. 二氧化锆陶瓷的相变增韧机理和应用[J]. 陶瓷学报, 2000, 21(1): 46-50.

    Yan Hong, Dou Mingmin, Li Heping. Transformation toughening mechanisms and application of ZrO2 ceramics [J]. Journal of Ceramics, 2000, 21(1): 46-50.

[12] 冯铁程. 氧化物陶瓷宏观裂纹的修复[D]. 天津: 天津大学, 2005. 3-6.

    Feng Tiecheng. Macroscopic Crack Repairing of Oxide Ceramics[D]. Tianjin: Tianjin University, 2005. 3-6.

张维平, 路董华, 余娟娟, 张珊, 刘莎莎. 氧化锆增韧机制在激光熔覆技术中的应用[J]. 中国激光, 2014, 41(11): 1103008. Zhang Weiping, Lu Donghua, Yu Juanjuan, Zhang Shan, Liu Shasha. Application of Zirconia Toughening Mechanism on Laser Cladding[J]. Chinese Journal of Lasers, 2014, 41(11): 1103008.

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