Laser surface treatment to improve the surface corrosion properties of nickel-aluminum bronze

Cottam, Ryan; Brandt, Milan

doi:10.1016/b978-1-78242-074-3.00020-9

Cited by 8 publications

(1 citation statement)

References 14 publications

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“…Corrosion resistance in various working environments is an important property for metallic material components. The poor corrosion resistance severely restricts the application ranges and causes enormous economic costs and even results in the life-threatening accidents in some cases [59][60][61]. With the low density, high specific strength and good corrosion resistance compared to steels, aluminum alloys have been widely applied in aerospace engineering and automobile industry [48,62].…”

Section: Introductionmentioning

confidence: 99%

Corrosion Behaviors of Selective Laser Melted Aluminum Alloys: A Review

Chen

Zhang

Jia

et al. 2020

Metals

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Selective laser melting (SLM) is an ideal method to directly fabricate products with high geometrical complexity. With low density and good corrosion resistance, aluminum alloys are widely used as important structural materials. Microstructures and mechanical properties of SLMed aluminum alloys have been recently widely studied. Corrosion behavior as a vital concern during the service of SLMed aluminum alloy parts has also drawn many attentions. Previous studies have found that SLM-processed aluminum alloys exhibit better corrosion resistance compared to the casted and wrought counterparts for both Al-Si alloys and high strength 2xxx Al alloys, which is mainly due to the unique microstructure features of SLMed Al alloys. For Al-Si alloys, with different shapes of Si networks, the different building planes show discrepant corrosion behaviors. Owing to the rougher surface with relatively larger numbers of defects, the as-printed surface is vulnerable to corrosion than the polished. Heat treatment has a negative effect on corrosion resistance due to the breakup of Si networks. The microstructure features correlated with the corrosion behaviors were also reviewed in this paper. Some suggestions on the future study of corrosion behaviors of SLMed Al alloys were put forward.

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