Effect of Coatings on the Fatigue Life of 15-5 PH Stainless Steel in Sea Water, Johnson, 5 Nov 81 (0130)
Fatigue tests were conducted on samples of 1505PH stainless steel that had been coated with selected coatings. Prior to testing, the coated samples were immersed in seawater at Pier 91 for a period of 30 days. The fatigue tests were made in saltwater at a stress ratio of 0.05 and a frequency of 30 Hz. The results indicated that an aluminum flame-sprayed coating covered with a polyurethane coating protected the 15-5PH resulting in air fatigue properties when the specimens were tested in sea water. Under the test conditions, the Sermetel coatings with and without the polyurethane coating did not protect the 154PH.