Influence of a Liquid on the Deformation Behavior of Porous Nickel and Titanium under Compression

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 H 2 0 and C 2 H 5 OH are used as the heat pipes’ active elements in space applications. The samples for mechanical testing were...

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Bibliographic Details
Published in:Journal of physics. Conference series 2021-06, Vol.1945 (1), p.12048
Main Authors: Panfilov, Gleb P, Zaytsev, Dmitry, Panfilov, Peter, Kiseev, Valery
Format: Article
Language:English
Subjects:
Compacting
Compression tests
Compressive strength
Ethanol
Heat pipes
Manufacturing defects
Mechanical tests
Nickel
Physics
Pipes (defects)
Space applications
Titanium
Vacuum annealing
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Summary: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 H 2 0 and C 2 H 5 OH 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.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1945/1/012048