纳秒激光制备Fe基非晶合金涂层表面织构的疏水性研究

doi:10.11896/cldb.21120134

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Abstract Fe-Cr-Mo-C-B-Y amorphous coatings were prepared on 35CrMo steel by cold spraying (CS) technique. The mastoid-like, dot and groove surface texture structures with regular arrangement were constructed by nanosecond laser. The result show that the surface characteristics of the coating vary with the laser texture structure and spacing. Under the action of high flux pulsed laser, the coating surface produces larger protrusions along the laser path, and the protrusions are covered with particles formed by the splashing structure of molten particles. Texture surface has texture, particle and polished surface at the same time. Besides, the coating surface after laser processing has excellent hydrophobicity, and the contact angle with deionized water and drilling fluid increase to (151.6±0.3)° and (145.9±0.4)° respectively. With the increase of lattice and groove texture spacing, the wettability changes from superhydrophobic to hydrophobic, and becomes hydrophilic when the spacing is maximum. The spacing change of mastoid-like texture has little effect on hydrophobicity, and even if the spacing increases to 300 μm, the coating surface can still keep hydrophobic. At the same time, the coating surface showed hydrophobic stability and low adhesion.

Key words： cold spray Fe-Cr-Mo-C-B-Y amorphous coating surface texture hydrophobicity

Published: Online: 2022-04-07

CLC number:

TG142

Fund:National Natural Science Foundation of China (52175196, 41872183) and the Pre-research Program in National 14th Five-Year Plan (61409230614).

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	Articles by authors
	XU Junjie
	KANG Jiajie
	YUE Wen
	ZHOU Yongkuan
	ZHU Lina
	FU Zhiqiang
	SHE Dingshun

Cite this article:

XU Junjie,KANG Jiajie,YUE Wen, et al. Study on Hydrophobicity of Surface Texture on Fe-based Amorphous Alloy Coating Treated by Nanosecond Laser[J]. Materials Reports, 2022, 36(7): 21120134-6.

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http://www.mater-rep.com/EN/10.11896/cldb.21120134 OR http://www.mater-rep.com/EN/Y2022/V36/I7/21120134

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