Best Plating Practices for the Application of Brush Plated Zinc-Nickel
Brush plating is an industrial electroplating process designed for demanding OEM and repair applications, without the use of an immersion tank. This presentation demonstrates the best practices for brush plating zinc-nickel to meet the ASTM standards of hydrogen embrittlement and corrosion protection. From preparatory steps to the application of a trivalent chromium conversion coating, the proper plating techniques needed to meet the customers’ demanding requirements are discussed.
#surfin #research #regulation
Electro-codeposition of MCrAlY Coatings for Advanced Gas Turbine Applications - 8th Quarterly Research Report
This NASF-AESF Foundation research project report covers the eighth quarter of project work (October-December 2019) on AESF Foundation Research at Tennessee Tech. The objective of the work is to study and optimize the MCrAlY electro-codeposition process to improve the coating oxidation/corrosion performance. In this quarter, the effects of particle density and shape on codeposition were studied. The results show that the shape of the particles plays an important role.
#research #nasf
Decorative Trivalent Chromium Deposits Applied by Barrel Electroplating
With the wide acceptance of the benefits of decorative trivalent chromium plating, there is a growing demand to successfully adapt this technology to barrel plating. Traditionally, trivalent chromium deposits were not commercially viable using barrel electroplating. Factors such as barrel design, cathode contact, anode placement and current density must be considered when providing a trivalent chromium barrel electrodeposit. This presentation outlines trivalent deposits applied in a barrel and examines variables in operating and electrolyte compositions.
#surfin #research
Qualitative Approach to Pulse Plating
In 1986, the AESF published Theory and Practice of Pulse Plating, edited by Jean Claude Puippe and Frank Leaman, the world’s first textbook on pulse plating. A compendium of chapters written by experts in this then-emerging field, the book quickly became the authoritative text in pulse plating. What follows here is the opening chapter, serving as an introduction to the field. Although the field has grown immensely in the intervening 35 years, the reader will find that the material remains a valuable introduction to those looking to advance the field of pulse plating.
#nasf #research