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工艺参数对IC10高温合金激光熔覆层形貌的影响

邢彬, 常保华, 都东

邢彬, 常保华, 都东. 工艺参数对IC10高温合金激光熔覆层形貌的影响[J]. 焊接学报, 2015, 36(7): 88-92.
引用本文: 邢彬, 常保华, 都东. 工艺参数对IC10高温合金激光熔覆层形貌的影响[J]. 焊接学报, 2015, 36(7): 88-92.
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XING Bin, CHANG Baohua, DU Dong. Effects of process parameters on morphology of laser deposited layer on IC10 directionally solidified superalloy[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2015, 36(7): 88-92.
Citation: XING Bin, CHANG Baohua, DU Dong. Effects of process parameters on morphology of laser deposited layer on IC10 directionally solidified superalloy[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2015, 36(7): 88-92.
shu

工艺参数对IC10高温合金激光熔覆层形貌的影响

  • 清华大学 摩擦学国家重点实验室, 北京 100084

基金项目: 清华大学摩擦学国家重点实验室自主研究课题资助项目(SKLT2014B09)

Effects of process parameters on morphology of laser deposited layer on IC10 directionally solidified superalloy

  • State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, China

摘要

    摘要
  • 摘要: 分析了IC10高温合金的激光熔覆工艺.包括工艺参数对宽度、深度、高度的影响规律以及热输入对熔覆层宏观形貌的影响规律,最后设计正交试验并利用极差分析确定了影响熔覆层宏观形貌的关键因素. 结果表明,试验条件下合适的热输入范围为490.2~888.9 kJ/m2. 热输入太低时基体与熔覆层之间存在未熔合;热输入太高时易形成气孔缺陷. 对宽度影响最大的是激光功率,其次是离焦量,最后是扫描速率;影响深度的因素从大到小依次为离焦量、激光功率、扫描速率;激光功率、扫描速率、离焦量对高度的影响无显著差别.
    Abstract: Laser cladding was used to prepare the IC10 directionally solidified superalloy. Effects of process parameters such as laser power, scanning speed and focal position on the morphologies of cladding layers (in terms of widths, fusion depths and layer heights of the cross sections) were investigated by experiments. Results showed that a heat input within a range of 490.2 to 888.9 kJ/m2 can result in an acceptable cladding layer. The low heat input can lead to the lack of fusion between the cladding and the base metal, while too high heat input can generate porosity defects in the deposited layer. An orthogonal experiment result indicated that laser power had the greatest effects on cladding layer width, followed by focal position and scanning speed. For fusion depth, the order of significances is focal position, laser power and then scanning speed. Influences of these three factors on cladding height were not notably different.
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    • 参考文献(10)
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  • 收稿日期:  2014-12-23

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