Failure mechanisms include stress corrosion cracking, hydrogen sulfide attack, erosion-corrosion, fatigue, caustic attack, acid pitting, and hydrogen embrittlement. In addition to a laboratory dedicated to corrosion tests, SwRI has proven expertise in identifying and solving problems in the field. Past investigations have identified failures in rupture disks, heat exchangers, boiler tubes, drill collars, oil well tubing, pressure vessels, and steel and polymer pipelines for gas and liquids. SwRI characterizes corrosion products and microstructural features to determine failure mechanisms, such as the internal corrosion shown in this hot water steel pipe. The automobile, textile, and shipping industries fabricate products using both conventional and advanced manufacturing technologies.
Failures can occur during manufacturing or while the product is in service.
SwRI has conducted failure investigations for numerous product support and manufacturing operations, studying a wide variety of components and equipment, such as springs, pistons, forged parts, and conveyor systems. SwRI characterized cracks in the storage tanks of this liquid natural gas tanker. After performing analyses, the Institute recommended repairs to extend the service life of the tanker. Institute failure analysts investigate ways to improve product life with the latest technological developments. Examples include fuels and lubricants research and new coatings for improved lubrication and reduced wear.