Phorgotten Phenomena

Results Posted for NACE International’s 2016 Annual Corrosion Career Survey

Average annual salaries in 2016 are reported for corrosion professionals in the United States, Canada, United Kingdom, and Europe. A slight gain was seen for the United States and United Kingdom, while a larger increase was recorded in Canada.

NACE International’s Annual Corrosion Career Survey Results for 2015

Corrosion professionals in North America and Europe have experienced another year of continued growth in career opportunities and salary levels, according to the 2015 Corrosion Career Survey conducted by Materials Performance magazine.

Wanted: Technical Articles for MP

To successfully communicate the wide variety of corrosion-related issues affecting corrosion professionals today, MP is actively encouraging corrosion control professionals worldwide to submit technical articles to share their corrosion-related experiences with over 36,000 NACE International members around the globe.

Inorganic Zincs—How Do They Cure?

Inorganic zinc (IOZ) coatings are used pervasively in industry to provide reliable protection from corrosion on a variety of substrates. Problems have emerged with coatings applied over zinc primers, however, such as delamination and blistering. This article discusses proper curing methods for IOZs to ensure dependable performance of the entire coating system.

Importance of the ‘Little Things’ in a Good Coating Job

Many years ago, early in my career, I was reminded that it’s the little things that make a standard paint job a good paint job. Coatings are too often thought of as something that must be done, but it’s not necessary to spend much time on surface preparation or application. After all, “paint is paint and anybody can apply paint.”

The Fine Art of Predicting Failures Just Before They Occur

When predicting a corrosion failure, ideally the time frame should be of sufficient duration to enable operators to take the appropriate action and eliminate the hazard. Occasionally it happens that a potential failure is predicted just before it actually occurs. This article describes such a situation.

Longevity of a Graphitized Cast Iron Water Main

Graphitization is a corrosion phenomenon associated with grey cast iron. This material consists essentially of flakes of graphite in an iron matrix. The iron constituent corrodes out because of the same multitude of corrosion reactions that affect ferrous metals, leaving behind the graphite and some corrosion products.

Service Life Extension for Protective Coatings

Because of increasing costs, owners are demanding longer coating service life. Ten to 15 years is no longer satisfactory. Simply adding dry film thickness will not work since many coatings crack at excessive thicknesses. Recent coating technology advances permit the use of solvent-free epoxy and polyurethane systems having >15-year lives. Newer combinations of epoxy and polysiloxane resins will make a 25-year life achievable.

Predicting Coating Life

The prediction of coating life depends on many factors, including the coating system used, preparation and application methods, and the severity of the environment. This article describes the knowledge needed to estimate coating life and the conditions that can compromise coating systems.

Using Impressed Current Cathodic Protection in Urban Areas

There are times when it is necessary to use impressed current cathodic protection (ICCP) in urban areas, in spite of concerns about extensive interference. This article describes three ICCP systems that can be used safely in urban environments. They are distributed anode (parallel) groundbeds, deep anode groundbeds, and low-output surface groundbeds.

I Told You So

Cathodic protection expert John Fitzgerald uses an experience early in his career to illustrate the consequences of not heeding the advice of corrosion professionals when designing and implementing corrosion control systems—many times because of reluctance to bear the expense. Cutting corners to save money up front can lead to unexpected failures and expensive repair and replacement in the future.

The Importance of the Pre-Job Meeting

A thorough pre-job meeting is an essential part of any project. This article covers the requirements of a pre-job meeting before starting a coating project. It presents advice on who should attend, the roles of the attendees, and references needed.

Check Solar Weather Before Performing Pipeline CP Evaluation

After experiencing severe telluric current activity on a pipeline, the author researched the subject. The causes and effects of telluric currents are explained and precautions for obtaining data on forecast telluric activity are given.

Review of Applicable Indices for Evaluation of Water Quality

This article compares three water quality indices for the evaluation of water to be used in industrial processes in Iran. They include the Puckorious Saturation Index, Langelier Saturation Index, and Ryznar Stability Index. The most applicable index for use in that country is suggested.

Managing a Coating & Plating Supply Chain

Re-engineering supply chains can reduce costs, cut delivery times, provide a significant competitive advantage, and enhance customer relationships. Supply chain concepts can be applied to the finishing phase (coating or plating) of production to further cut costs and delivery times.