Correlation of Tensile and Fatigue Properties of Irradiated Type-347 Stainless Steel at Room Temperature

Kangilaski, M.; Shober, F.R.

doi:10.13182/nt68-a28032

Cited by 5 publications

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“…At A&, = 0.3% and 0-40/,, the behaviour is quite different: the unirradiated specimen has a plastic strain component of 015% both at the first cycle and after saturation and the irradiated specimen has no plastic component at all at this low strain range. This could explain the longer fatigue lives for irradiated material at lower strain ranges, as observed by Kangilaski [3,4]. TEM inspection of the dislocation substructure in tested specimens gives information about the microstructural mechanisms involved.…”

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confidence: 64%

“…There is only a limited amount of information available on postirradiation fatigue properties and most of it concerns materials data for engineering purposes at LMFBR core conditions : temperatures > 0-5Tm and fast neutron fluences > loz5 n m-'. Kangilaski has reported some results of fatigue tests on Type 347 stainless steel irradiated at room temperature [3,4]. The effect of irradiation on Type 347 stainless steel is to reduce fatigue life at high level of applied total strain range and increase fatigue life at low levels of total strain range.…”

Section: Introductionmentioning

confidence: 99%

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Effects of Neutron Irradiation on Low‐cycle Fatigue and Tensile Properties of Aisi Type 304 Stainless Steel at 298 K

Vries¹,

Tjoa²,

Elen³

1979

Fatigue Fract Eng Mat Struct

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Abstract-Room temperature studies have been made of the effect of neutron damage on the mechanisms concerned with the low-cycle fatigue and tensile test behaviour of stainless steel AISI Type 304. Samples were irradiated in the HFR at Petten to a fast fluence of 5.1OZ4 n m-' (E > 0.1 MeV) at 333 K followed by mechanical testing at room temperature.The low temperature irradiation caused irradiation hardening : the 0.2 yield stress increased from 230MNm-' for the unirradiated material to a lower yield point value of 540 MN m-'. Irradiation had no significant effect on fatigue life. The loop type damage was removed by glide dislocations resulting in cyclic softening. Dislocation substructures were observed after fatigue testing : cell structures were more pronounced after fatigue testing to failure the higher the applied strain ranges.

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confidence: 64%

Section: Introductionmentioning

confidence: 99%