Failure of AISI Type 347 Stainless Steel Bellows
A number of AISI 347 stainless steel bellows intended for use in the control rod drive mechanism of a fast breeder reactor were found to be leaking before being placed in service. The bellows, which had been in storage for one year in a seacoast environment, exhibited a leak rate on the order of 1 x 10−7 cu cm/s (6 x 10−8 cu in./s). Optical metallography revealed numerous pits and cracks on the surfaces of the bellow convolutes, which had been welded to one another using an autogenous gas tungsten arc welding process. Microhardness measurements indicated that the bellows...
N.G. Muralidharan, Rakesh Kaul, K.V. Kasiviswanathan, Baldev Raj, Failure of AISI Type 347 Stainless Steel Bellows, Handbook of Case Histories in Failure Analysis, Vol 2, Edited By Khlefa A. Esaklul, ASM International, 1993, p 259–261, https://doi.org/10.31399/asm.fach.v02.c9001351
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