Hexavalent Chromium
SERDP and ESTCP efforts have encompassed a range of issues related to Cr(VI). The major areas of research and demonstrations include the following:
- Fundamental Mechanisms of Corrosion Inhibition
- Alternatives to Chromate Conversion Coatings and Pretreatments
- Alternatives to Chromated Primers
- Alternatives to Adhesive Bond Primers and Sealants
- Development of Complete Cr(VI)-Free Coatings Systems
- Alternatives to Chromated Surface Treatments on Magnesium Alloys
- Alternatives to Hard Chrome Plating
- Coating Removal Technologies to Reduce Exposure to Cr(VI)
- Non-Destructive Inspection Techniques for Reduced Maintenance on Cr(VI)-Containing Coatings
- Development of Accelerated Corrosion Test Protocols for Qualification of Cr(VI) Alternatives
- Reducing Cr(VI) Emissions from Welding Operations
Fundamental Mechanisms of Corrosion Inhibition
Critical Factors for the Transition from Chromate to Chromate-Free Corrosion Protection
Lead Organization: The Ohio State University
Project Status: Completed 2005
Mechanisms of Military Coatings Degradation
Lead Organization: U.S. Army Research Laboratory
Project Status: Completed 2003
Corrosion Protection Mechanisms of Rare-Earth Compounds Based on Cerium and Praseodymium
Lead Organization: Missouri University of Science and Technology
Project Status: Active
Morphology and Mechanism of Benign Inhibitors
Lead Organization: University of Cincinnati
Project Status: Active
Scientific Understanding of Non-Chromated Corrosion Inhibitors Function
Lead Organization: The Ohio State University
Project Status: Active
Scientific Understanding of the Mechanisms of Non-Chromate Corrosion Inhibitors
Lead Organization: Southwest Research Institute
Project Status: Active
Alternatives to Chromate Conversion Coatings and Pretreatments
Novel Conductive Polymers as Environmentally Compliant Coatings for Corrosion Protection
Lead Organization: Naval Air Systems Command (NAVAIR)
Project Status: Completed 2006
Wash Primer Replacement Based on the Superprimer Technology
Lead Organization: ECOSIL Technologies LLC
Project Status: Active
Environmentally Friendly Zirconium Oxide Pretreatment
Lead Organization: PPG Industries Inc.
Project Status: Active
Demonstration and Validation of Non-Chromate Aluminum Pretreatments
Lead Organization: Naval Air Systems Command (NAVAIR)
Project Status: Active
Validation of Novel Electroactive Polymers as Environmentally Compliant Coatings for Replacement of Hexavalent Chromium Pretreatments
Lead Organization: Naval Air Systems Command (NAVAIR)
Project Status: Active
Alternatives to Chromated Primers
Joint DoD Demonstration and Validation of Magnesium Rich Primer Coating Technology
Lead Organization: Naval Air Systems Command (NAVAIR)
Project Status: Active
Validation/Demonstration of Anti-Corrosion Inhibitor Primer Formulations as Replacements for Hexavalent Chromium Military Primer Coatings
Lead Organization: Naval Air Systems Command (NAVAIR)
Project Status: Active
Electrocoat Process for Non-Chromate Primers in DoD Manufacturing
Lead Organization: Naval Air Systems Command (NAVAIR)
Project Status: Active
Comprehensive Evaluation and Transition of Non-Chromated Paint Primers
Lead Organization: Naval Air Systems Command (NAVAIR)
Project Status: FY11 New Start
Alternatives to Adhesive Bond Primers and Sealants
Sol-Gel Technology for Low VOC, Non-Chromated Adhesive and Sealant Applications
Lead Organization: Air Force Research Laboratory
Project Status: Completed 2001
Understanding Corrosion Protection Requirements for Adhesive Bond Primers
Lead Organization: Naval Air Warfare Center
Project Status: FY11 New Start
Demonstration/Validation of Sol-Gel Surface Preparation for Metal Adhesive Bonding
Lead Organization: Air Force Research Laboratory
Project Status: Completed 2008
Demonstration/Validation of High Performance Corrosion Preventative Compound (CPC) for Interior Aircraft Applications
Lead Organization: Naval Air Systems Command (NAVAIR)
Project Status: Active
Development of Complete Cr(VI)-Free Coatings Systems
Chromium Free Application System for DoD Applications
Lead Organization: ECOSIL Technologies LLC
Project Status: Completed 2008
Zeolite Conductive Polymer Coating System for Corrosion Control to Eliminate Hexavalent Chromium from DoD Applications
Lead Organization: University of California, Riverside
Project Status: Completed 2011
Corrosion Finishing/Coating Systems for DoD Metallic Substrates Based on Non-Chromate Inhibitors and UV Curable, Zero Valent Materials
Lead Organization: Missouri University of Science and Technology
Project Status: Completed 2010
UV Curable Non-Chrome Primer and Advanced Topcoat System
Lead Organization: QinetiQ North America
Project Status: Active
Non-Chromate/No-VOC Coating System for DoD Applications
Lead Organization: U.S. Army Research Laboratory
Project Status: Completed 2009
Non-Chromate, ZVOC Coatings for Steel Substrates on Army and Navy Aircraft and Ground Vehicles
Lead Organization: U.S. Army Research Laboratory
Project Status: Active
Alternatives to Chromated Surface Treatments on Magnesium Alloys
Supersonic Particle Deposition for Repair of Magnesium Components
Lead Organization: U.S. Army Research Laboratory
Project Status: Active
Alternatives to Hard Chrome Plating
Electro-Spark Deposited Coatings for Replacement of Chrome Electroplating
Lead Organization: Industrial Ecology Center
Project Status: Completed 2005
Clean Dry-Coating Technology for ID Chrome Replacement
Lead Organization: Naval Research Laboratory
Project Status: Completed 2006
Electroformed Nanocrystalline Coatings: An Advanced Alternative to Hard Chrome Electroplating
Lead Organization: Babcock & Wilcox - Integran
Project Status: Completed 2003
Investigation of Chemically Vapor Deposited Tantalum for Medium Caliber Gun Barrel Protection
Lead Organization: New Jersey Institute of Technology
Project Status: Completed 2008
Chromium Elimination in Medium Caliber Gun Barrels
Lead Organization: U.S. Army Benet Laboratories
Project Status: Active
Replacement of Chromium Electroplating on Aircraft Landing Gear Using HVOF Thermal Spray Coatings
Lead Organization: Naval Research Laboratory
Project Status: Completed 2010
Replacement of Chromium Electroplating on Gas Turbine Engine (GTE) Components Using Advanced Thermal Spray Technologies
Lead Organization: Naval Research Laboratory
Project Status: Completed 2006
Replacement of Chromium Electroplating on Hydraulic Actuators Using HVOF Thermal Spray Technology
Lead Organization: Naval Research Laboratory
Project Status: Completed 2007
Replacement of Chromium Electroplating on Helicopter Dynamic Components Using HVOF Thermal Spray Technology
Lead Organization: Naval Research Laboratory
Project Status: Completed 2009
Electrospark Deposition for Depot- and Field-Level Component Repair and Replacement of Hard Chromium Plating
Lead Organization: Naval Research Laboratory
Project Status: Completed 2006
Nanocrystalline Cobalt Alloy Plating for Replacement of Hard Chrome and Thin Dense Chrome (TDC) on Internal Surfaces
Lead Organization: Naval Air Systems Command (NAVAIR) Fleet Readiness Center Southeast
Project Status: Active
Industrial Implementation of Environmentally Friendly Nanometal Electroplating Process for Chromium and Cadmium Replacement Using Low Cost Pulse Current Power Supplies
Lead Organization: Integran Technologies, Inc.
Project Status: Active
Electrodeposition of Nanocrystalline Co-P Coatings as a Hard Chrome Alternative
Lead Organization: Naval Air Systems Command (NAVAIR) Fleet Readiness Center Southeast
Project Status: Active
Chromium Elimination and Cannon Life Extension
Lead Organization: Naval Air Systems Command (NAVAIR) Fleet Readiness Center Southeast
Project Status: FY11 New Start
Coating Removal Technologies to Reduce Exposure to Cr(VI)
Atmospheric Plasma Depainting
Lead Organization: North Carolina State University
Project Status: Active
Portable Laser Coating Removal System (PLCRS)
Lead Organization: Air Force Materiel Command
Project Status: Completed 2005
Robotic Laser Coating Removal System (RLCRS)
Lead Organization: U.S. Air Force, Tinker AFB
Project Status: Completed 2008
Non-Destructive Inspection Techniques for Reduced Maintenance on Cr(VI)-Containing Coatings
Development of Innovative Nondestruction Evaluation Technologies for the Inspection of Cracking and Corrosion Under Coatings
Lead Organization: Naval Surface Warfare Center, Carderock
Project Status: Completed 2001
Nondestructive Testing of Corrosion Under Coatings
Lead Organization: Northrop Grumman Corporation
Project Status: Completed 2004
Environmentally Acceptable Alternatives for Non-Destructive Inspection with Fluorescent Penetrant Dyes
Lead Organization: METSS Corporation
Project Status: Completed 2003
Scale-Up, Environmentally Friendly Non-Destructive Inspection for Corrosion Inspection Through Coatings (IR2NDI)
Lead Organization: Naval Air Systems Command (NAVAIR) Fleet Readiness Center Southeast
Project Status: Completed 2008
Development of Accelerated Corrosion Test Protocols for Qualification of Cr(VI) Alternatives
Accelerated Dynamic Corrosion Test Method Development
Lead Organization: Southwest Research Institute
Project Status: Active
Dynamic Multivariate Accelerated Corrosion Test Protocol
Lead Organization: Air Force Research Laboratory Materials Integrity Branch (AFRL/RXSA)
Project Status: Active
Reducing Cr(VI) Emissions from Welding Operations
Novel Approach for Welding Stainless Steel Using Chromium-Free Consumables
Lead Organization: The Ohio State University
Project Status: Completed 2004
Development of Chrome-Free Welding Consumables for Stainless Steels
Lead Organization: The Ohio State University
Project Status: Completed 2009
Field-Testing Pulsed Power Inverters in Welding Operations to Control Heavy Metal Emissions
Lead Organization: Naval Facilities Engineering Command (NAVFAC)
Project Status: Active
Innovative Welding Technologies to Control Hazardous Air Pollutant Emissions
Lead Organization: Naval Facilities Engineering Command (NAVFAC)
Project Status: Active
Symposium & Workshop
DoD’s Chemical and Material Risk Management Directorate
DoD Policy Memo:
Minimizing the Use of Hexavalent Chromium (Cr6+)
