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      Elimination of Hexavalent Chromium/Cadmium for Sustainment

      NCMS Project #: 141039

      Problem: Most ground combat and support systems continue to rely on fasteners plated with Cd/Cr6+?or Zinc passivated with Cr6+.? Transitioning away from Cd/Cr6+?to?ZnNi?is needed to ensure the safety of commercial operators and maintainers who work regularly on bridges, commercial vehicles and other legacy vehicles.??

      Benefit: By looking for alternative sources for the coatings, maintenance and sustainment work can be accomplished in a safer environment.? The costs savings from disposal of environmentally harmful elements as well as healthcare could add up to a significant amount.

      Solution/Approach: ZnNi?is a highly effective replacement for Cd/Cr6+?and Zn/Cr6+.? It provides similar corrosion protection.?This initiative is intended to demonstrate and conduct a proof-of-concept that the industrial base can support a transition to?ZnNi?plated hardware.?The project will test this proof of concept on the Self-Propelled Howitzer System (SPHS) – specifically the M109A6 (Paladin) which is currently fielded.?This project will gather information and define the process for maintenance and sustainment transition to?ZnNi.

      Quad Chart:

      Impact on Warfighter:

      • Increase worker productivity due to safer workplace environments
      • Decrease healthcare and disability costs and exposure to harmful toxins
      • Reduce toxic waste and environmental impact
      • Improve warfighter readiness

      DOD Participation:

      • U.S. Army Tank-Automotive and Armaments Command (TACOM), Integrated Logistics Support Center (ILSC)
      • Program Executive Office Ground Combat Systems (PEO GCS)
      • U.S. Army Combat Capability Development Command (CCDC) Ground Vehicle Systems Center (GVSC), formally known as U.S. Army Tank Automotive Research, Development and Engineering Center (TARDEC)
      • PdM Self-Propelled Howitzer Systems

      Industry Participation:

      • BAE Systems
      • NCMS

      Benefit Area(s):

      • Cost savings
      • Maintenance avoidance and reliability
      • Positive environmental impact
      • Safety

      Focus Area:

      • Energy, environmental, health, and safety