The Air Force’s CV-22 Osprey fleet started receiving new proprotor gearboxes last month—and officials say they’re planning a comprehensive midlife upgrade for the V-22 to address concerns over its safety and reliability. 
When left unchecked, the corrosion of metals and alloys is inevitable and extraordinarily costly. U.S. companies spend an estimated $276 billion annually on corrosion prevention, mitigation and repair – more than 3% of gross domestic product (GDP).[1] And for the U.S....