InnerArmor Coating Reduces Metal Fatigue
In oil & gas drilling and other applications, cyclic stress can cause metal fatigue which leads to serious failures requiring expensive recovery. With metal fatigue, microcracks propagate and ultimately lead to component breakdown. When corrosive elements are present, cracking may accelerate to further reduce component life. Most fatigue and stress corrosion failures start at the part surface, but these issues will not occur in compressively stressed areas. For susceptible components, it is important to apply appropriate surface modification and protection to minimize metal fatigue.
InnerArmor provides a conformal surface treatment supporting components ranging to lengths greater than 30 feet. By applying compressive stress on the component's internal surface, InnerArmor creates resistance to stress cracking and thus, improves fatigue life and fatigue limit. Other benefits include reduced stress corrosion and hydrogen assisted cracking. InnerArmor can also be applied to a shot peened surface providing not only additional compressive stress but also protection against H2S/CO2 corrosion, erosion and other attacks that can reduce component life while offering a unique combination of hardness, smoothness and low coefficient of friction.
