Stress Corrosion Cracking of Steels in Ammonia
Stress Corrosion Cracking of Steels in Ammonia (2001)-The first indication that ammonia could cause stress corrosion cracking came as a result of the development of cracks and leaks in carbon steel vessels in agricultural ammonia service. Investigation of failed tanks showed they had been properly (ASME Code) constructed. The heads were either deep drawn or cold formed. Most of the failures occurred either in the welds or in the heat-affected zones adjacent to welds. Metallurgical examination of failed vessels revealed numerous fine cracks on their interior surfaces, principally in the heads near the head to shell seam weld. These characteristics were typical of stress corrosion cracking and indicated that residual stresses were contributing to the cracking. In 1954, a research committee was formed by the Agricultural Ammonia Institute (AAI) to determine the cause of and methods for preventing cracking of vessels in agricultural ammonia service.
Discounted member price: 30.00
45.00
You could save: 33.3%

Similar products

No products found