Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process or serv...

Corrosion in reinforced concrete (RC) structures is a major durability issue that requires attention terms of monitoring, order to assess the degraded condition and reduce financial costs for maintenance repair. The acoustic emission (AE) technique has been found be useful monitor damage due steel corrosion RC. However, further development monitoring protocols still necessary towards on-site ap...

Neutron diffraction analysis was employed to measure residual stresses near welds in used anhydrous ammonia nurse tanks. Tensile residual stresses contribute to stress corrosion cracking of nurse tanks, which can cause tanks to release toxic ammonia vapor. The analysis showed that tensile residual stresses were present in the tanks measured, and the magnitudes of these stresses approached the y...

Cadmium has been identified as a threat to worker health and the environment. A test program was conducted to evaluate the performance of environmentally acceptable substitutes for cadmium plating. Fifteen test coatings were exposed to natural marine, industrial, and rural atmospheres for 12 -months. Additional laboratory tests were conducted to determine coating abrasion resistance, adhesion, ...

PURPOSE: The deterioration of elements of steel hydraulic structures (SHS) on our nation’s lock system is caused by combined effects of several complex phenomena: corrosion, cracking and fatigue, impact, and overloads. This Coastal and Hydraulics Engineering Technical Note presents examples of deterioration and a method for predicting future deterioration based on current conditions. In a compa...

Abstract The use of magnesium and its alloys as temporary implants has gained interest in the last two decades due to their good mechanical properties bio-degradability in-vivo conditions. However, issues higher corrosion rate stress cracking persist, which are responsible for implants’ early failure. This review paper focuses on challenges involved magnesium-based advancements mitigating corro...