Aqueous Corrosion Fatigue of Type 302 and 304 Stainless Steel Springs
Majority of the water feeders in a new chicken house had stopped working. The water feeders were found to be operated on the principle that when the chickens pecked a plastic bowl, a compressed spring released a squirt of water. The small compression springs were made from type 302 stainless steel, and the operating stresses were safely within the design limits given by the Goodman diagram. The springs were revealed by scanning electron microscopy to contain numerous cracks on their inside surface, and these cracks were all at 45 deg to the wire axis. The solution was recommended as...
Aqueous Corrosion Fatigue of Type 302 and 304 Stainless Steel Springs, ASM Failure Analysis Case Histories: Mechanical and Machine Components, ASM International, 2019, https://doi.org/10.31399/asm.fach.mech.c0051293
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