New Paradigm Galvanic Corrosion Spec MIL-STD-889D to launch in 2021
Briefings presented by NAVAIR at ASETSDefense 2020, MIL-STD-889D Overview by Victor Rodriguez-Santiago , show how the DoD has been changing the primary military specification for galvanic corrosion control, getting rid of galvanic tables and replacing them with the calculated galvanic current between each pair of materials.
The new MIL-STD-889D specification contains “Mileage Charts” showing the calculated galvanic current at the interface between different metals and between different coatings.
Corrdesa’s Corrosion Djinn® already meets MIL-STD-889D to give corrosion rates between any two materials/coatings. Djinn allows you to quickly determine the galvanic current between any two materials, including composites, metal filled primers, and coatings.
NAFEMS CAASE20 Presentations available for download!
One of our objectives is to make our website a resource for organizations and persons interested in applying computational simulation techniques to electrochemical processes, such as corrosion, electroplating, electrochemical machining (ECM) etc.
Consequently we have updated our Resource page with papers and presentations. With their kind permissions we have just uploaded our NAFEMS CAASE 2020 presentations (https://www.nafems.org/events/nafems/2020/caase20/ );
- Corrosion Modeling using Multiphysics Computational Fluid Dynamics – From Ideal to Real Conditions
- Numerical Prediction of Electrochemical Machining Processes Using Multiphysics Computational Tools
- Microscale Modeling of Metal Filled Coating for Corrosion Protection
- Using Electrochemical Simulation to both Optimize Alloy Electroplating and Predict the Consequent Impact on Product Corrosion Resistance
We are pleased to welcome Miranda Peyton to our team as an associate scientist!
Dr. Alan Rose and Dr. Keith Legg speak at SERDP-ESTCP Symposium
The Symposium is an annual event showcasing technologies to meet environmental regulations such as REACH and OSHA.
Dr. Keith Legg, CTO of Corrdesa, ran the “REACH Short Course – Practical Effects and Approaches” and discussed “ Accelerated Test and Evaluation for Materials Qualification“, a rapid approach for qualifying non-chromate alternatives, etc. In addition, Dr. Legg ran an informal side meeting on the deposition of LHE ZnNi, which is displacing Cd for corrosion protection of aircraft landing gear, actuators, etc.
Dr. Alan Rose, CEO of Corrdesa, presented ” ZnNi and Tagnite Performance on Complex Parts -Corrosion Risk Mapping “, a briefing on modeling of LHE ZnNi deposition. Dr. Rose demonstrated the importance of computationally designed tooling for electroplating, and the effect of current density variations on the properties of the coating. In particular, Dr. Rose showed that ZnNi is not a sacrificial coating in low current density areas – often exactly those areas where sacrificial corrosion protection is most needed.
New Webinar Available! Learn how to comply with the NEW standards for corrosion protection.
In July, Corrdesa’s Dr. Alan Rose joined Knovel for the webinar, Complying with the New Standard of Corrosion Protection, to talk about significant changes to the MIL-STD-889 covering dissimilar metals and galvanic corrosion. In this webinar, Dr. Rose explains the latest findings which show that galvanic corrosion is best determined by galvanic current between materials, not by potential difference. He also reviewed key changes in the dissimilar metals and galvanic corrosion standard (MIL-STD-889C), currently in development. Learn how to comply with the new standards of corrosion protection. You can access the Webinar at the link below.
We are pleased to welcome Dr. Vinod Upadhyay to our team as a scientist!
On-Demand Webinar now available!
Last week, Corrdesa teamed with Siemens to jointly present a webinar on corrosion simulation tools. For people that missed the webinar but are still interested in watching, it is now available On-Demand Webinar here: ‘Tackling the trillion-dollar problem of corrosion and aircraft durability in harsh conditions’.
“Can we win the race to replace hex chrome before the REACH authorizations run out?”
Most REACH Authorizations only extend to 2024, and it is quite possible that some Authorizations may be struck down by the European Court of Justice well before then (as one already has)…. Find out more by attending Dr. Keith Legg’s talk at the Colloque Aerotechnique conference in Montreal at 11:15 am on Wednesday Oct 16.
Live Webinar | 17 October 2019 | 2 Sessions Available
‘Tackling the trillion-dollar problem of corrosion and aircraft durability in harsh conditions’.
Led by Durrel Rittenburg and our own Alan Rose- learn how a combined CFD and corrosion tool kit analysis can help achieve more robust designs. They will demonstrate how early design analysis can help engineering make better decisions mitigating potentially costly corrosion problems before they happen.
Corrdesa is attending DoD Allied Nations Technical Corrosion Conference
We’ll be presenting the following papers at the conference:
8/13/19 8:20AM “Using simulation to help understand differences between corrosion in atmospheric environments and accelerated chamber tests” (CC room 1/2)
8/13/19 9:40AM “Three-dimensional electrochemical modeling of anodic aluminum rich primer” (CC room 4)
8/13/19 10:00AM “Computation Corrosion Analysis Guides Material Choice from Design through Sustainment” (CC room 4)
8/14/19 8:40AM “Non-drip Selective Plating and Anodizing for Aircraft” (CC room 4)
We are attending DoD Allied Nations between August 12th and 15th in the Cox Convention Centre, Oklahoma City, Oklahoma!
Why we use Siemens STAR-CCM+
By connecting the Corrdesa electrochemical database with Siemens STAR-CCM+ we can now assess corrosion risk using 3D models – enabling us to continue tackling the huge and costly corrosion issues.
Dr Keith Legg has been awarded the National Association for Surface Finishing (NASF) highest honor
This award is for recognition of contributing to the advancement of theory and practice of surface finishing and allied arts, raising the quality of processes and products, and enhancing the status of the profession.
Dr Keith Legg will be at SUR/FIN 2019
Corrdesa’s CTO Keith Legg will be presenting twice at SUR/FIN 2019 in Rosemont, Illinois! The first presentation will be “On-Aircraft Non-Drip Selective Anodizing” at 12pm on June 4th and the second will be “Updates on Galvanic Corrosion MIL-STD-889 and New Corrosion Test Development” also on June 4th and both will be held in Meeting Room 4.
Introducing Dalistick Non-drip selective anodizing for on-aircraft repair
Corrdesa is the US distributor for Dalic, the French company that invented the non-drip plating and anodizing technology, which uses a closed-loop system to selectively anodize or electroplate, even overhead. The nondrip technology uses airflow to hold the electrolyte in the plating tool and on the surface, avoiding the need for seals or dams. Find out more about the tool here or contact us!
At MRO Americas we’re showing how the latest non-drip brush plating technology ensures low waste, low emissions but the highest product quality. The machines can be used on-aircraft in small spaces and overhead areas, without chemicals dripping onto equipment, operators, or the floor.
We're ready for MRO Americas in Atlanta, GA
Corrdesa attended NACE 2019
Whilst in Nashville at Corrosion 2019, Corrdesa gave many demonstrations of Corrosion Djinn and provided new connections with free trials to try back in their own environment. It has never been easier to explore possible coating protection options for product designs. We are looking forward to receiving their feedback soon.
Attending NACE Corrosion 2019 was a great experience and gave us the opportunity to demonstrate our quick, accurate galvanic corrosion prediction tool – Corrosion DjinnTM. Our presentations were well attended and can be found on our resources page.
We are all set up for NACE Corrosion 2019 in Nashville, Tennessee.
Between March 25th and March 28th, come along to booth 2648 for a demonstration of Corrosion Djinn and receive a free trial!
Galvanic Corrosion Protection: Those Old Galvanic Potential Tables Are Finally Being Replaced
The galvanic potential tables people have been using for years often give the wrong answer. Now the U.S. Navy is taking a new approach and updating MIL-STD-889, the galvanic corrosion standard, replacing galvanic charts and tables with corrosion rate calculations. What does this mean for industry?
Corrdesa will be presenting: Using simulation to understand the difference between corrosion in atmospheric environments and chamber tests at NACE Corrosion 2019 on March 27th in Nashville
To read the full abstract please visit the presentation page on the NACE website
Alan Rose will be presenting "Corrosion Prediction and Testing for Aerospace and Defense" alongside representatives from Southwest Research, NAVAIR and Boeing at NACE Corrosion 2019
Alan will be presenting “Corrosion Prediction and Testing for Aerospace and Defense” on March 26 at NACE 2019 which is taking place in Nashville, Tennessee. Find out more here. Corrdesa will also have a booth at NACE so come and see us in Booth #2648!
The Simcenter conference was very interesting, providing a great opportunity to learn more about the present software tools and also the trends in future development. One key takeaway for Corrdesa was the presentation on ‘Design Manager’ – this is a very powerful tool allowing easy setup of many simulations to more thoroughly explore the design space. So now we have changed out engineering workflow to think in more of a stochastic framework of many simulations and ranges of parameters instead of deterministic simulations of one scenario after the other. This approach really leverages the power of our computing cluster and provides much more optimum solutions to our clients.
Alan’s corrosion simulation presentation was very well received with many questions and follow-up meetings. Much of the Siemens Simcenter community were unaware of the existence of the electrochemical modules within CCM+ and in particular the advances made in corrosion prediction.
The presentation is available here showing how the ‘1D’ approach of Corrdesa Corrosion Djinn can be leveraged to assess corrosion risks in materials selection and then further refinement made in more complex designs with the use of CCM+ employing the Corrdesa electrochemical database
We would like to welcome Dr Julio Mendez to our team as a CFD engineer!