采用ADPL参数化语言，综合考虑热源模型、材料热物性参数、相变潜热、边界条件等因素，建立了连续移动高斯热源作用下TC11表面激光熔覆MCrAlY涂层三维瞬态温度场数值模型。实验结果测量值与模拟计算值的对比表明，建立的温度场数值模型具有很好的可靠性。同时，在分析涂层品质的基础上，基于该模型对TC11表面激光熔覆MCrAlY涂层的激光工艺参数进行了预报及优化，得出较优的激光工艺参数为：激光功率1200 W、光斑直径2 mm、扫描速度400 mm/min。
A numerical model established for analysis of three-dimensional transient temperature field of MCrAlY coating by laser cladding on TC11 surface under moving gauss distributing heat source was built with APDL parametric design language in consideration of heat source model,thermal-physical properties of materials,latent heat,boundary conditions. It indicates that the established numerical model of temperature field has good reliability by comparing the measured values of experimental results and numerical simulation values. The prediction and optimization of laser processing parameters of MCrAlY coating by laser cladding on TC11 surface were obtained based on the analysis of coating quality. The optimal laser process parameters were obtained:the laser powder 1 200 W,the spot diameter 2 mm,the scanning speed 400 mm/min.
参考文献
| [1] | 黄天娥,范桂彬,闫海,刘东升.航空用钛合金材料及钛合金标准发展综述[J].航空标准化与质量,2010(03):30-33. |
| [2] | 吴小梅,李伟光,陆峰.钛合金叶片防护涂层研究--十五科研项目工作总结[J].装备环境工程,2006(03):116-118,129. |
| [3] | 张光钧,李军,李文戈.激光表面改性的发展趋势[J].金属热处理,2006(11):1-7. |
| [4] | Hongyu Wang;Dunwen Zuo;Gang Chen;Guifang Sun;Xiangfeng Li;Xu Cheng .Hot corrosion behaviour of low Al NiCoCrAlY cladded coatings reinforced by nano-particles on a Ni-base super alloy[J].Corrosion Science: The Journal on Environmental Degradation of Materials and its Control,2010(10):3561-3567. |
| [5] | 王宏宇,左敦稳,马浩,王明娣,陆英艳.工艺参数对压片预置式激光熔覆涂层微观质量的影响[J].材料工程,2009(09):80-83,88. |
| [6] | J. T. Hofman;D. F. de Lange;B. Pathiraj;J. Meijer .FEM modeling and experimental verification for dilution control in laser cladding[J].Journal of Materials Processing Technology,2011(2):187-196. |
| [7] | 马浩,左敦稳,王珉,王宏宇,陈拥军.基于ANSYS的压片预置式激光熔覆温度场仿真[J].机械制造与自动化,2009(04):92-94,109. |
| [8] | 江世好,黎向锋,左敦稳,王宏宇,柳振平.基于预置压片的高温合金激光熔覆温度场仿真[J].兵器材料科学与工程,2011(04):23-27. |
| [9] | 王东生,田宗军,沈理达,刘志东,邱明波,黄因慧.钛合金表面激光重熔等离子喷涂MCrAlY涂层温度场数值模拟[J].应用激光,2007(06):444-449. |
| [10] | 席明哲,虞钢.连续移动三维瞬态激光熔池温度场数值模拟[J].中国激光,2004(12):1527-1532. |
| [11] | 应丽霞,王黎钦,陈观慈,古乐,郑德治,李文忠.3D激光熔覆陶瓷-金属复合涂层温度场的有限元仿真与计算[J].金属热处理,2004(07):24-28. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%