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Influence of a Liquid on the Deformation Behavior of Porous Nickel and Titanium under Compression
Authors
V. Kiseev
G. P. Panfilov
P. Panfilov
D. Zaytsev
Publication date
1 January 2021
Publisher
'IOP Publishing'
Abstract
The deformation behavior of capillary porous (CP) Ni and CP Ti is examined under uniaxial compression in air, water, and ethanol. CP metals contained inert liquids such as H20 and C2H5OH are used as the heat pipes' active elements in space applications. The samples for mechanical testing were isostatic compacting and vacuum annealing (porosity of 60%). Uniaxial compression tests were carried out in the air, water, and ethanol in Shimadzu AG-50K XD (traverse rate 0.1 mm/min). It was shown that CP Ni and CP Ti exhibit the ductile deformation behavior in all cases, which is inherent to Ni and Ti. The ethanol environment induces the increase of the compression strength and the total deformation in both materials compared to deformation behavior in air and water. Therefore, a heat pipe's failure containing CP Ni and CP Ti matrixes and ethanol as the working body is caused rather by manufacturing defects, but not the structural materials' intrinsic properties. © Published under licence by IOP Publishing Ltd.The Russian Foundation for Basic research (№ 20-48-660017)
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Last time updated on 17/05/2022