Can Electroplated Fe-C be an Environmentally Friendly Alternative to Hard Chromium and DLC Coatings?
Electroplated FeC is an efficient surface treatment based on non-aggressive chemicals with a deposition rate of ~20 μm/h at a process temperature of 50°C. The FeC coating is carbide-free and temperature stable up to ~250°C with a hardness of 750 HV, which is comparable to frequently applied hardened steels. The FeC coating has reasonable friction properties and have high affinity towards lubricants because of incorporated amorphous carbon. Hence, for certain applications, the FeC coating might be an interesting wear-protective alternative to hard chromium and to PVD-deposited low-friction diamond-like carbon coatings (DLC’s), which are rather difficult and costly to deposit on larger items.
#research #surfin #vacuum-vapor
Sulfuric / Organic Electrolytes and Total Quality Improvement (TQI) for Present / Future Anodizing Requirements
After the last 12 years of developmental improvements and successful operation in production and selective brush anodizing, we present formulations for the new revised three-part organic acid blend. This ionic active blend detailed here can benefit all sulfuric anodize electrolytes to meet today's more demanding quality, specifications and production requirements.
This article is a re-publication of the 22nd William Blum Lecture, presented at the 68th AES Annual Convention in Boston, Massachusetts, on June 29, 1981.
Surface finishing line process automation systems are normally designed to optimize production throughput and assure compliance with operating parameters such as time-in-tank. The basic elements of automated energy management on process lines are control of energy consumption in active, standby and inactive states, primarily by ventilation, heating and cooling, agitation and filtration.
This paper presents a case study of the new process control model.
#research #management #surfin
The Nature, Cause and Effect of Porosity in Electrodeposits: A Microscopic Examination of Nickel-Chromium Coatings after Atmospheric Corrosion
This paper is one of seven reports constituting AES Research Project #13, dealing with the nature, cause and effect of porosity in electrodeposits, performed at the then-National Bureau of Standards, in Gaithersburg, Maryland. It was one of several seminal articles produced through AES Research during the height of the automotive/decorative segment of the surface finishing industry in the 1950s and 60s.
Crack Formation during Electrodeposition and Post-deposition Aging of Thin Film Coatings - 4th Quarterly Report
This article is a re-publication of the 20th William Blum Lecture, presented at the 66th AES Annual Convention in Atlanta, Georgia, on June 25, 1979.
This article is a re-publication of the 19th William Blum Lecture, presented at the 65th AES Annual Convention in Washington, DC, on June 26, 1978.
The modern automotive industry has been striving to reduce energy loss caused by friction. An alloy plating film developed by finely crystallizing iron and tungsten demonstrates both a high level of hardness and excellent ductility. In addition, low friction can be achieved by its application under a layer of lubricant. It also has the merit of greater cost performance as compared with DLC produced with PVD technology.
#research #vacuum-vapor #energy
This article is a re-publication of the 18th William Blum Lecture, by Dr. Joseph B. Kushner, presented at the 64th AES Annual Convention in Los Angeles, California, on June 27, 1977.
New materials, manufacturing processes, automation and the need for better surface finishes have driven new developments in mass finishing. This article discusses finishing solutions for very large and heavy parts, explains drag finishing technology, introduces surf finishing technology and showcases two new media developments.
Crack Formation During Electrodeposition and Post-deposition Aging of Thin Film Coatings - 3rd Quarterly Report
What appear to be identically set-up vibratory bowls will finish identical loads of parts in varying time cycles. This paper offers a new technique to better predict what the operator will produce, by measuring the force applied to the parts. It is the efficiency of that force which controls the efficiency and speed of the refinement cycle.
Electro less plating processes are considered to be much convenient, cheaper and best for deposition on parts with lot of holes, cleavages, bents, curves, abnormal shapes, threading etc., effectively and economically.
Theoretical and Practical Aspects of Alloy Plating - The 16th William Blum Lecture - Part 3 References and Biography
This article is the last of three parts of a re-publication of the 16th William Blum Lecture, presented at the 62nd AES Annual Convention in Toronto, Ontario, Canada, on June 23, 1975. This section contains the reference/citation list and the author biography.
This article is the second of three parts of a re-publication of the 16th William Blum Lecture, presented at the 62nd AES Annual Convention in Toronto, Ontario, Canada on June 23, 1975. Dr. Ernst Raub presents a comprehensive treatise on alloy plating.
This article is the first of three parts of a re-publication of the 16th William Blum Lecture, presented at the 62nd AES Annual Convention in Toronto, Ontario, Canada on June 23, 1975. Dr. Ernst Raub presents a comprehensive treatise on alloy plating.