| 碳钢表面激光熔覆铝青铜涂层的组织及铜渗透现象 |
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| 引用本文： | 黄湘湘,冯凯,何利杰,龚剑,陈江,李铸国. 碳钢表面激光熔覆铝青铜涂层的组织及铜渗透现象[J]. 激光与光电子学进展, 2019, 56(5): 145-152 |
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| 作者姓名： | 黄湘湘 冯凯 何利杰 龚剑 陈江 李铸国 |
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| 作者单位： | 上海交通大学上海市激光制造与材料改性重点实验室,上海,200240;中国人民解放军92730部队,海南三亚,572000;上海大陆激光科技有限公司,上海,201306 |
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| 摘 要： | 为了提高海洋用钢的表面性能,采用激光熔覆技术在Q235钢板表面熔覆了QAl-7铝青铜合金,并对其组织以及熔合线处的铜渗透现象进行了研究。研究结果表明,铝青铜熔覆层在凝固过程中会发生液相分离以及过饱和脱溶现象,其组织主要由富铜相(Cu_3Al、Cu_9Al_4)以及富铁相(AlFe_3、AlFe)构成。熔池中的铜液沿着基体钢奥氏体晶界润湿扩展,在热影响区形成铜渗透现象。铜渗透深度与熔合区的宽度有关,熔合区越宽,铜渗透越深。通过控制激光熔覆工艺参数减少熔合区的宽度进而控制渗透深度,从而抑制铜渗透裂纹的产生。
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| 关 键 词： | 激光技术 铜渗透 激光熔覆 碳钢 铝青铜 |
Microstructure and Copper Contamination Phenomenon of Laser Cladded Aluminum Bronze Coatings on Carbon Steel Surface |
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| Huang Xiangxiang,Feng Kai,He Lijie,Gong Jian,Chen Jiang,Li Zhuguo. Microstructure and Copper Contamination Phenomenon of Laser Cladded Aluminum Bronze Coatings on Carbon Steel Surface[J]. Laser & Optoelectronics Progress, 2019, 56(5): 145-152 |
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| Authors: | Huang Xiangxiang Feng Kai He Lijie Gong Jian Chen Jiang Li Zhuguo |
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| Affiliation: | (Shanghai Key Laboratory of Materials Laser Processing and Modification, Shanghai Jiao Tong University, Shanghai 200240, China;No. 92730 Chinese People1 s Liberation Army, Sanya, Hainan 572000, China;Shanghai Da Lu Laser Technology Co., Ltd., Shanghai 201306, China) |
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| Abstract: | Huang Xiangxiang;Feng Kai;He Lijie;Gong Jian;Chen Jiang;Li Zhuguo(Shanghai Key Laboratory of Materials Laser Processing and Modification, Shanghai Jiao Tong University, Shanghai 200240, China;No. 92730 Chinese People1 s Liberation Army, Sanya, Hainan 572000, China;Shanghai Da Lu Laser Technology Co., Ltd., Shanghai 201306, China) |
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| Keywords: | laser technology copper contamination laser cladding carbon steel aluminum bronze |
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