| 激光熔覆TiC颗粒增强Ni—Cr—B—Si—C合金复合涂层的微观组织 |
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| 引用本文： | 李强,王富耻.激光熔覆TiC颗粒增强Ni—Cr—B—Si—C合金复合涂层的微观组织[J].中国有色金属学报,1998,8(3):420-426. |
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| 作者姓名： | 李强 王富耻 |
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| 作者单位： | 哈尔滨工业大学材料科学与工程学院，北京理工大学机械工程学院 |
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| 基金项目： | 哈尔滨工业大学金属精密热加工国防科技重点实验室资助项目 |
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| 摘 要： | 用连续波ＣＯ２激光在４５＃钢表面熔覆ＴｉＣ＋ＮｉＣｒＢＳｉＣ复合涂层。微观组织分析表明：在熔覆过程中，ＴｉＣ颗粒表面发生部分溶解，当凝固时，重新外延生长出ＴｉＣ，并固溶基体元素；与纯合金涂层相比，复合涂层中ＴｉＣ颗粒的加入导致基体组织为条状ＣｒＢ相间分布在Ｎｉ固溶体构成的羽毛状簇团组织，并伴有少量的Ｎｉ枝晶间Ｎｉ＋Ｍ２３Ｃ６共晶。
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| 关 键 词： | 激光熔覆 TiC颗粒 Ni基合金 复合涂层 |
MICROSTRUCTURAL CHARACTERIZATION OF LASER CLAD TiC PARTICLES REINFORCED Ni Cr B Si C COMPOSITE COATING |
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| Li Qiang,Lei Tingquan,Wang Fuchi ,Ouyang Jiahu,Yang Dezhuang and Zhou Yu School of Materials Science and Engineering,Harbin Institute of Technology,Harbin ,P. R. China.MICROSTRUCTURAL CHARACTERIZATION OF LASER CLAD TiC PARTICLES REINFORCED Ni Cr B Si C COMPOSITE COATING[J].The Chinese Journal of Nonferrous Metals,1998,8(3):420-426. |
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| Authors: | Li Qiang Lei Tingquan Wang Fuchi Ouyang Jiahu Yang Dezhuang and Zhou Yu School of Materials Science and Engineering Harbin Institute of Technology Harbin P R China |
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| Affiliation: | Li Qiang,Lei Tingquan,Wang Fuchi *,Ouyang Jiahu,Yang Dezhuang and Zhou Yu School of Materials Science and Engineering,Harbin Institute of Technology,Harbin 150001,P. R. China, * Department of Mechanical Engineering,Beijing Institute of |
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| Abstract: | A continuous wave CO 2 laser was used to clad TiC Ni Cr B Si C composite coating on AISI1045 steel substrate. The microstructure of the clad was investigated. The results showed that TiC particles slightly dissolved within the matrix melt, and the dissolved TiC epitaxially recrystallized on the surface of the remaining TiC particles, in which alloying elements of the matrix were solid solved. As compared with the Ni Cr B Si C clad, the matrix produced a microstructure of CrB laths distributed in the Ni solid solution and a small amount of Ni M 23 C 6 eutectic between Ni dendrites after the TiC particles were added. |
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| Keywords: | laser cladding TiC p particles Ni based alloy composite coating |
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