NASF/AESF Foundation Research Project #121: Development of a Sustainability Metrics System and a Technical Solution Method for Sustainable Metal Finishing: 2nd Quarterly Report
This report covers the second quarter of project work (July-September 2020) on this project at Wayne State University in Detroit. The objective is to help metal finishing plants to conduct a self-managed sustainability assessment and identify technical solutions for sustainability performance improvement. The reader is invited to contact Dr. Huang in identifying plating shops willing to participate in this program.
NASF is hosting a web-based course on chromium plating skills the first four Tuesdays and Wednesdays in November for operators, supervisors and sales personnel. Registration ends October 20th.
Originally published as S.J. Muckett, et al., Plating and Surface Finishing, 73 (1), 44-51 (1986), this paper was awarded the 1987 AESF Gold Medal for Best Paper published in Plating and Surface Finishing in 1986. With the passage of time, Pb-containing solders have been found to have issues regarding toxicity and health. Nonetheless, the work, methodology and results discussed here remain valuable from a research standpoint.
Charlie Cook, non-partisan political analyst, will speak at a special NASF Washington Forum session about the 2020 U.S. Election on September 10.
NASF and the AESF Foundation are offering a web-based plating essentials course that provides an overview of critical finishing subjects.
Each year, the National Association for Surface Finishing (NASF) recognizes members who stand out amongst their peers for their contributions to the finishing industry on the local and national levels.
Electro-codeposition of MCrAlY Coatings for Advanced Gas Turbine Applications - 10th Quarterly Research Report
NASF funded research seeking a sulfur-free plating solution for electro-codeposition of (Ni,Co)-CrAlY composite coatings.
This paper discusses a novel pretreatment process for direct electrodeposition nickel-phosphorus and nickel from commercial electrolytes onto aluminum alloy (T6061) surfaces without the need for zincate or stannate pretreatment processes. These coating properties are compared to conventional commercially applied electroless (NiP) using conventional pretreatment processes.
The July 28 webinar will discuss the EPA’s current review of per- and polyfluoroalkyl substance (PFAS) compounds.
Over many years, well-regarded AESF/NASF contributor Jack Dini contributed a series of fascinating columns to Plating & Surface Finishing, under the title Fact or Fiction?. After his new offering in July, we are happy to offer a second welcome contribution to his output for the NASF, this time on copper.
NASF/AESF Foundation Research Project #121: Development of a Sustainability Metrics System and a Technical Solution Method for Sustainable Metal Finishing: 1st Quarterly Report
This report (1) introduces the new project and (2) covers the first quarter of project work (April-June 2020) on this project at Wayne State University in Detroit. The objective is to help metal finishing plants to conduct a self-managed sustainability assessment and identify technical solutions for sustainability performance improvement. The reader is invited to contact Dr. Huang in identifying plating shops willing to participate in this program.
New Sampling and Analysis Plan (SAP) includes the best practices for collecting and analyzing PFAS samples from surface finishing operations.
The effect of anodizing voltage on the adhesion of nickel electrodeposited on anodized aluminum is related to the morphology of the anodic film. In general, adhesion is a linear function of the applied anodizing voltage. New data on the initial stages of pore formation during anodizing indicate that: (1) that the growth mechanism during the initial stage (< 10 sec) differs from that during subsequent growth, (2) there is no metallic bonding and (3) electrodeposited nickel coatings typically fill the entire pore.
AES Research Project #41: Part 4: Adhesion Failure of Electrodeposited Coatings on Anodized Aluminum Alloys
An SEM study of peel-test adhesion specimens from plated coatings on anodized aluminum shows that failure can be categorized in three different modes: (1) specimens exhibiting poor adhesion strength, which fail at the anodic film/coating interface; (2) specimens with good adhesion strength, which fail by local fracture of the anodic film and (3) specimens with excellent adhesion strength , which fail when the applied load is greater than the strength of the alloy substrate. The effect of anodizing parameters and alloy composition on peel test failure are discussed.
Dr. Jude M. Runge is the 2020 recipient of the NASF William Blum Scientific Achievement Award. The COVID-19 crisis and the cancellation of SUR/FIN 2020 have affected the timing of the formal award and her delivery of the William Blum Lecture. To honor her properly now, it is timely to publish one of her earlier papers, showing the caliber of her work. Here, she notes that nanomaterials, nanotechnology and nanoprocessing are the marketing buzzwords for the 21st century, stressing that, after all, conventional anodizing processes yield a nanoscale finish. Armed with this knowledge, the ease, reliability and reproducibility of the anodic finish enable insights into new applications.
The National Association for Surface Finishing (NASF) explains the latest details of the legislative package for the Paycheck Protection Program (PPP) that would reportedly allow more flexibility for surface finishers to spend forgivable loans for payrolls and expenses.
Over many years, AESF/NASF stalwart Jack Dini contributed a series of fascinating columns to Plating & Surface Finishing, under the title Fact or Fiction?. What follows is a welcome addition to his output for the NASF. Still the prolific writer, Jack discusses celebrities (both scientists and non-scientists) who once worked in electroplating.
Originally published in 1980, this paper was the second on AES Research Project #41, plating on aluminum, at the National Institute for Science and Technology. A study of the morphologies of zinc and tin immersion deposits on Al and its alloys showed that zinc formed epitaxial deposits on alloys, as noted on pure Al. Similarities exist between the zincate and stannate processes; in particular, the same crystallography orientations are active in both systems. Comparisons between zinc deposits produced from solutions containing ferric chloride and Rochelle salts and deposits from the same solution without these additions show that ferric chloride plays a fundamental role in the deposition process.
Originally published in 1978, this paper was the first of several on AES Research Project #41, a study of plating on aluminum, at the National Institute for Science and Technology. A review of immersion pretreatments for the plating on aluminum is presented. The zincate pretreatments dominate the literature, but innovations were reported which offer improved adhesion and corrosion performance. Finally, an updated bio on Dr. Lashmore’s work through the years is offered.
Electro-codeposition of MCrAlY Coatings for Advanced Gas Turbine Applications - 9th Quarterly Report
The NASF Research Board has funded a research grant at the Tennessee Technological University, under the direction of Professor Ying Zhang. The objective is to study and optimize the MCrAlY electro-codeposition process to improve the coating oxidation/corrosion performance. In this reporting period, the study studied a sulfur-free fluoborate plating solution. Although the fluoborate solution is sulfur-free and offers high plating rates, the CrAlY powder was attacked by the fluoborate anion. The fluoborate-based plating bath may be suitable for codeposition of more inert particles but not for active CrAlY-based powders.
Business Financing Under the CARES Act, a program aimed at providing funding during the coronavirus crisis, comes on the heels of concerns over the rollout of SBA’s forgivable loan program.
From time to time, it has been our intent to present seminal papers from past issues of NASF/AESF journals that are of such significance that, decades later, they bear another look. As Einstein is associated with relativity, Drs. Conway and Bockris are synonymous with theoretical electrochemistry. This paper is in large measure, the result of Project #16, and, as the authors modestly describe it, is “an attempt to describe to the electroplater who understands the basic ideas of electrochemistry, what is being done in research on fundamental electrode processes.” This “attempt” did rather well.
NASF is offering an online 10-lesson course on zinc and zinc alloy plating. Registration deadline is April 21.
The U.S. Environmental Protection Agency (EPA) has issued a policy memorandum indicating that it will exercise enforcement discretion for any non-compliance that may result from the COVID-19 pandemic.
Surface finishers can now register to attend SUR/FIN 2020.
NASF/AESF University Funded Research Transitioned to Industry: Practical Performance Improvements in Functional REACH-Compliant Trivalent Chromium Plating
This paper shows information learned from a NASF/AESF Foundation Research grant which has led to successful application. The work at the University of Houston (UH) is discussed – a technique developed to perform in-situ analysis of the stress of the chromium deposit from a REACH-compliant trivalent chromium electrolyte. An understanding of crack formation during plating has led the way to a means to avoid it. Faraday Technology Inc. scaled-up and optimized the same process through support from the U.S. Army. The results enabled significant chromium coating performance enhancements, matching the wear index of conventional Cr deposits from hexavalent baths.
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.
The NASF’s Jeff Hannapel and attorney Ethan Ware headline conference Jan. 22-24 in Orlando.