Study on bonding strength properties of arc sprayed Ni-Al coating for 6061-T6 aluminum alloy

WANG Jixiao; WANG Li; MA Li; MO Caisong

doi:10.7512/j.issn.1001-2303.2020.10.03

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Study on bonding strength properties of arc sprayed Ni-Al coating for 6061-T6 aluminum alloy
Vol. 50, Issue 10, Pages: 14-17(2020)
Published：2020
DOI： 10.7512/j.issn.1001-2303.2020.10.03
稿件说明：

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DOI：

WANG Jixiao, WANG Li, MA Li, et al. Study on bonding strength properties of arc sprayed Ni-Al coating for 6061-T6 aluminum alloy[J]. Eletric Welding Machine2020, 50(10): 14-17. DOI： 10.7512/j.issn.1001-2303.2020.10.03.

摘要

为提高舰载机偏流板表面涂层的结合强度并延长其使用寿命

利用双丝电弧喷涂技术在6061-T6铝合金表面制备四种Ni-Al复合涂层

研究了四种不同复合涂层与基体的结合强度性能。同时观察涂层断口形貌和截面形貌

并分析其失效原因。试验结果表明

以Ni-5wt.%Al为打底层

以Ni-20wt.%Al作为面层的Ni-Al复合涂层结合强度较高

该复合涂层结合强度满足性能指标要求。

Abstract

In order to improve the bonding strength of the surface coating of the deflector and prolong its service life

four kinds of Ni-Al composite coatings were prepared on 6061-T6 aluminum alloy by twin-wire arc spraying technology. The bonding strength properties of four different composite coatings were studied. At the same time

the appearances of fracture and section of the coating were observed

and the failure reasons were analyzed. The results show that the bonding strength of Ni-Al composite coating with Ni-5 wt.%Al as bottom layer and Ni-20 wt.% Al as surface layer is higher

and the bonding strength of the composite coating meets the performance index requirements.