Effects of Chemical Compositions on Plating Characteristics of Alkaline Non-Cyanide Electrogalvanized Coatings.

作者信息

Wanotayan Thanyalux, Kantichaimongkol Pongsakorn, Chobaomsup Viriyah, Sattawitchayapit Sirikarn, Schmid Klaus, Metzner Martin, Chookajorn Tongjai, Boonyongmaneerat Yuttanant

机构信息

Metallurgy and Materials Science Research Institute, Chulalongkorn University, Pathumwan, Bangkok 10330, Thailand.

Nanoscience and Technology Interdisciplinary Program, Graduate School, Chulalongkorn University, Pathumwan, Bangkok 10330, Thailand.

出版信息

Nanomaterials (Basel). 2020 Oct 23;10(11):2101. doi: 10.3390/nano10112101.

DOI:10.3390/nano10112101

PMID:33113991

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7690725/

Abstract

The effects of zinc and sodium hydroxide concentrations in an alkaline non-cyanide zinc bath on the electrodeposition characteristics of zinc deposits are systematically investigated. Using microstructural and phase analyses of specimens with specifically designed geometries, the study indicates that the bath formulations critically control the electrogalvanizing characteristics and affect the coating surface morphology, deposition rate, throwing power, coating uniformity, and residual stresses developed during and after electrogalvanizing. The coatings produced from baths with a moderate Zn-to-NaOH ratio of 0.067-0.092 appear to provide uniform and compact deposits, moderately high deposition rate, and relatively low residual stresses.

摘要