Registration Number
0220U100173,
0119U102520
, R & D reports
Title
The influence of liquid lead and lead-bismuth eutectics on the fatigue durability of structural alloyed steels.
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Head
Kukhar Ivan S.,
Registration Date
13-01-2020
Organization
Karpenko Physico-Mechanical Institute of NASU
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The fatigue properties of Cr18Ni10T steel under pure bending conditions was investigated. For the austenitic grade Cr18Ni10T steel, the brittle effect in lead melt is shown. The eutectic melt significantly reduces the fatigue properties of steel. At 350°C and a deformation amplitude of 1% in lead, there is a 4-fold decrease in the number of cycles to failure compared to a vacuum medium, whereas 8 times in lead-bismuth eutectics. -active environment. It is shown that in the medium of lead melt, compared to vacuum, there is an accelerated depletion of plasticity in the surface layers, which contributes to the generation of a large number of microcracks. Subsequently, under the action of the melt, the growth of one trunk crack is realized, which causes accelerated transgranular destruction.
Product Description
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Kukhar Ivan S.
Lavrys Sergiy M.
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2020-04-02
