| Fe—Cr—Ni合金激光熔覆层显微缺陷及开裂行为的研究 |
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| 引用本文： | 宋武林,朱蓓蒂,罗慧倩,王艾华,崔昆.Fe—Cr—Ni合金激光熔覆层显微缺陷及开裂行为的研究[J].应用激光,1996(2). |
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| 作者姓名： | 宋武林 朱蓓蒂 罗慧倩 王艾华 崔昆 |
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| 作者单位： | 华中理工大学材料科学与工程系 |
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| 摘 要： | 用光学显微镜和扫描电子显微镜，对铁基自熔合金的多道搭接激光熔覆层的组织进行分析，得出熔覆层中的微观缺陷如显微缩孔、夹杂物等是熔覆层的显微裂纹，熔覆层的裂纹是以这些显微缺陷为裂纹源沿两种不同方向生长的共晶状组织的界面扩展。
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| 关 键 词： | 激光熔覆，裂纹，组织 |
Micro-defect and Cracking Behavior of Laser Cladding Fe-Cr-Ni Coatings |
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| Song Wulin,Zhu Beidi, Luo Huiqian, Wang Aihua, Cui Kun.Micro-defect and Cracking Behavior of Laser Cladding Fe-Cr-Ni Coatings[J].Applied Laser,1996(2). |
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| Authors: | Song Wulin Zhu Beidi Luo Huiqian Wang Aihua Cui Kun |
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| Abstract: | Optical microscope and scanning electron microscope are used to study the microstructure of laser cladding Fe-Cr-Ni Coatings in this paper. Results are:mocro defects, micro-cavity and occluded forein substance, are the micro-cracks and crack resources in claded layer; crack of claded layer propagate along the boundary of two kinds of eutectic structure growing in different direction. |
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| Keywords: | laser cladding crack micro-defect |
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