Mechanisms of Military Coatings Degradation

摘要: Abstract : When the Mechanisms of Military Coatings Degradation program was initiated four years ago, corrosion cost for Department Defense estimated to be $10B/year. Therefore, logic followed that if a better understanding coating degradation mechanism could obtained then significant savings may realized through enhanced systems and/or processes. A review current and relevant repainting practices indicated military are repainted following reasons: loss appearance (aesthetics, camouflage, cleanliness); chipping, peeling, debonding coating; substrate. Such paint/depaint/repaint (PDR) operations source DoD pollution. Frequency PDR increases pollution increased consumption as well economic logistic burden associated with maintenance waste stream. 30% decrease in frequency would save Army $25-$40M topcoat materials approximately $40M annually Air Force painting operations. system impacts: 1) Environment 2) Economics 3) Survivability 4) Readiness. The importance maintaining force readiness survivability can clearly seen Army's 3-axis transformation strategy; i) Legacy Force, ii) Interim iii) Objective Force. Today, 75% major combat platforms exceed their service half-life. Transformation requires essential legacy warfighting execute national strategy. Improved performance protection, camouflage retention chemical agent protection part "drop-in" technology is not only vital but also