Abstract
A novel phenomenon known as Industry X.0 is becoming extremely popular for digitizing and reinventing business organizations through the adaption of rapid and dynamic technological, innovational, and organizational changes for attaining the profitable revenue. This work investigates the die-casted commercially pure aluminum alloyed with 9% silicon and 3% copper (AlSi9Cu3) that is produced through the gravity die casting process. Further, the degradation of surface coating on die-casted AlSi9Cu3 alloy was explored. The acrylic paint electrodeposition (ED) coat, 2-coat polyester without primer and 3-coat polyester with epoxy primer powder coatings were used in this study. Moreover, the 3.5 wt.% of sodium chloride (3.5 wt.% of NaCl) test solution was used for electrochemical and salt spray test and the tools used to assess electrochemical properties were electrochemical impedance spectroscopy (EIS), potentiodynamic polarization, and neutral salt spray test (NSS). The microstructure of AlSi9Cu3 after corrosion exposure was investigated; also, the microstructure of coated and uncoated AlSi9Cu3 samples was analyzed by SEM microscopy after corrosion exposure. Besides, the electrochemical studies were also carried out on the Al alloy die casting. It was found that acrylic paint ED coatings exhibited higher corrosion resistance than 2-coat polyester without primer & 3-coat polyester with epoxy primer powder coatings. Acrylic paint ED coating showed higher corrosion resistance in AC and a lower value in DC and 3-coat polyester with epoxy primer powder coating displayed higher corrosion resistance in DC and a lower value in AC.
Highlights
In recent years, Industry X.0 has dramatically influenced and impacted the digital-driven transformations in the manufacturing and production-based industrial corporations
Due to sterner environmental regulations, powder coatings are highly preferred than liquid coatings, and it has received more considerable attention from the manufacturing industry
Powder samples used for the investigation are polyester or epoxy powder, which is heated to fuse into a protective layer
Summary
Industry X.0 has dramatically influenced and impacted the digital-driven transformations in the manufacturing and production-based industrial corporations. Johansen et al have worked in corrosion protection of aluminum alloy by cerium conversion and coating polymer duplex coatings. Coatings 2020, 10, 85 of AA6063 aluminum alloy by cerium conversion, polyaniline conducting polymer, and by duplex coatings has been investigated in detail [1]. The electrochemical behavior is evaluated in aerated 3.5 wt.% NaCl. In this research work, cerium conversion, and duplex coatings were studied. Baldissera et al have reviewed the coatings for corrosion protection of metals based on electronic conducting polymers [2]. The corrosion protection of mild steel by a novel epoxy resin-based coating system was investigated. The foremost goal of this study was to demonstrate that the addition of a conducting polymer to a coating based on a classic polymer results in improved corrosion protection of steel
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