中国激光, 2010, 37 (10): 2672, 网络出版: 2010-09-25   

电磁搅拌对激光熔覆WC-Co基合金涂层的组织结构和硬度的影响及机理研究

Studies of the Effects and Mechanism of Electromagnetic Stirring on the Microstructures and Hardness of Laser Cladding WC-Co Based Alloy Coating
作者单位
信阳师范学院物理电子工程学院, 河南 信阳 464000
摘要
采用自制电磁搅拌装置研究了电磁搅拌对激光熔覆WC-Co基硬质合金组织的影响。实验与理论分析均表明,电磁搅拌能够使激光熔覆层的组织晶粒细化、分布更均匀,并能够消除熔覆层内的气孔和裂缝,提高熔覆层质量。还研究了不同强度的电磁搅拌对熔覆层显微硬度的影响,结果表明,随着电磁搅拌强度的增加,激光熔覆层显微硬度相应提高。
Abstract
Effects of electromagnetic stirring on the microstructures of the laser cladding WC-CO based layers are studied. Both experimental and theoretical analysis indicate that the microstructures of the laser cladding layers under electromagnetic stirring are much finer and more uniform than those without electromagnetic stirring. High qualitative layers which are free of porosity and cracks are obtained from the laser cladding with electromagnetic stirring. The influences of different electromagnetic stirring strengths on the hardness of the laser cladding layers are also investigated. The results show that the hardness increases correspondly with the increase of the electromagnetic stirring strength.
参考文献

[1] 杨胶溪, 王智勇, 左铁钏. 高功率半导体激光器熔覆絮状WC-Ni基超硬复合材料[J]. 中国激光, 2009, 36(12): 3262~3266

    Yang Jiaoxi, Wang Zhiyong, Zuo Tiechuan. High power diode laser cladding aggregate tungsten carbide-Ni based superhard composites[J]. Chinese J. Lasers, 2009, 36(12): 3262~3266

[2] . W. Sears. Developing new applications based on laser additive manufacturing of WC cermets and WC forming alloys[J]. Chinese J. Lasers, 2009, 36(12): 3245-3250.

[3] 王东升, 田宗军, 沈理达 等. 钛合金激光表面改性技术研究现状[J]. 激光与光电子学进展, 2008, 45(6): 24~32

    Wang Dongsheng, Tian Zongjun, Shen Lida et al.. Research states of laser surface modification technology on titanium alloys[J]. Laser & Optoelectronics Progress, 2008, 45(6): 24~32

[4] 翟玉峰, 王新洪, 黄坚. 激光熔覆TiC-Mo2C颗粒增强Fe基涂层的组织与性能[J]. 中国激光, 2009, 36(12): 3287~3292

    Zhai Yufeng, Wang Xinhong, Huang Jian. Microstructure and properties of TiC-Mo2C particles reinforced Fe-based composite coatings produced by laser cladding[J]. Chinese J. Lasers, 2009, 36(12): 3287~3292

[5] . Viejo, A. Pardo, J. Rams et al.. High power diode laser treatments for improving corrosion resistance of A380/SiCp aluminum composites[J]. Surf. Coat. Tech., 2008, 202(17): 4291-4301.

[6] . 激光熔覆金属表面改性研究进展(上)[J]. 中国表面工程, 1999, 12(3): 22-26.

    . Recent development of research on surface modification of metals with laser cladding(Ⅰ)[J]. China Surface Engineering, 1999, 12(3): 22-26.

[7] . 激光熔覆金属表面改性研究进展(下)[J]. 中国表面工程, 1999, 12(4): 11-15.

    . Recent development of research on surface modification of metals with laser cladding(Ⅱ)[J]. China Surface Engineering, 1999, 12(4): 11-15.

[8] 郑启光. 激光先进制造技术[M]. 武汉: 华中科技大学出版社, 2002

    Zheng Qiguang. Laser Advanced Manufacture[M]. Wuhan: Huazhong University of Science and Technology Press, 2002

[9] 董长胜, 钟敏霖, 郝倩 等. 面向核设施晶间应力腐蚀的高Cr含量Inconel 690激光熔覆研究[J]. 中国激光, 2009, 36(12): 3256~3261

    Dong Changsheng, Zhong Minlin, Hao Qian et al.. High chromium coatings by laser deposition of inconel 690 for repairing nuclear power plant components[J]. Chinese J. Lasers, 2009, 36(12): 3256~3261

[10] 赵亚凡, 陈传忠. 激光熔覆金属陶瓷层开裂机理及预防措施[J]. 激光技术, 2006, 30(1): 16~22

    Zhao Yafan, Chen Chuanzhong. Mechanism of the deformation and preventive measures of the cracks in metal ceramics cladding layer[J]. Laser Technology, 2006, 30(1): 16~22

[11] . Cracking behavior of ceramic particles reinforced Ni-base alloys composite coating by laser cladding[J]. Surf. Rev. Lett., 2005, 12(1): 7-12.

[12] 宋武林, 朱蓓蒂, 张洁 等. 激光熔覆层热膨胀系数对其形成敏感性的影响[J]. 华中理工大学学报, 1999, 27(S1): 42~44

    Song Wulin, Zhu Beidi, Zhang Jie et al.. The effects of expansion coefficient of laser cladding layer on cracking sensitivity[J]. J. Huazhong University of Science and Technology, 1999, 27(S1): 42~44

[13] . 电磁搅拌下半固态AZ91D镁合金的组织形成[J]. 特种铸造及有色合金, 2005, 25(3): 161-163.

    . . Microstructural formation of semi-solid AZ91D Mg alloy stirred by electromagnetic field[J]. Special Casting & Nonferrous Alloys, 2005, 25(3): 161-163.

[14] . 用电磁搅拌抑制LD10CS铅合金焊缝热裂缝的研究[J]. 西安交通大学学报, 1998, 32(5): 91-95.

    . Study on the elimination of weld hot-cracking of LD10CS aluminum alloy with electromagnetic stirring[J]. J. Xi′an Jiaotong University, 1998, 32(5): 91-95.

[15] D. Y. Lee, K. B. Kim, D. H. Kim. Influence of the elect romagnetic stirring on globularization of primary solid phase in solid-liguid region[J]. Materials Science Forum, 2005, 486-487: 550~553

[16] . 厚层激光熔覆层裂缝控制的综合实验及理论分析[J]. 南华大学学报(理工版), 2001, 15(3): 36-40.

    . Synthetic experiment study and theorematic analysis of crack control of thick laser cladding layer[J]. J. Nanhua University (Science & Engineering Edition), 2001, 15(3): 36-40.

[17] . 激光送粉熔覆WC/CO 硬质合金的气孔问题[J]. 材料热处理学报, 2002, 23(2): 49-53.

    . . Porosity investigation in laser cladding WC/Co cemented carbide with powder feeding[J]. Transactions of Materials and Heat Treatment, 2002, 23(2): 49-53.

余本海, 胡雪惠, 吴玉娥, 杨东升. 电磁搅拌对激光熔覆WC-Co基合金涂层的组织结构和硬度的影响及机理研究[J]. 中国激光, 2010, 37(10): 2672. Yu Benhai, Hu Xuehui, Wu Yu′e, Yang Dongsheng. Studies of the Effects and Mechanism of Electromagnetic Stirring on the Microstructures and Hardness of Laser Cladding WC-Co Based Alloy Coating[J]. Chinese Journal of Lasers, 2010, 37(10): 2672.

本文已被 12 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!