Experimental Studies on the Effect of Destructive Reagents on Metal Structural Elements

Experimental studies were conducted to refine the theoretical provisions concerning the mechanism and kinetics of penetration for a metal melt consisting of destructive reagents, such as gallium, indium, tin, and zinc (destructive composition), along the grain boundaries in unstressed metal samples....

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Published in:Powder metallurgy and metal ceramics Vol. 63; no. 1-2; pp. 117 - 122
Main Authors: Chepkov, I.B., Lapitsky, S.V., Kuchinskiy, A.V., Kuchinska, O.B., Zirka, M.V., Zvershkhovskiy, I.V., Hurnovich, A.V., Dokuchaev, O.V., Andriyenko, A.M., Oliarnik, B.O.
Format: Journal Article
Language:English
Published: New York Springer US 01.05.2024
Springer
Subjects:
Aluminum
Aluminum alloys
Ceramics
Characterization and Evaluation of Materials
Chemical tests and reagents
Chemistry and Materials Science
Composites
Glass
Grain boundaries
Materials Science
Metallic Materials
Natural Materials
Powder Metallurgy Industry and Managerial Economics
fluidity
destructive effect
strength
metal melt composition
capillary and diffuse penetration
destructive composition
destruction
ISSN:1068-1302, 1573-9066
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Summary:Experimental studies were conducted to refine the theoretical provisions concerning the mechanism and kinetics of penetration for a metal melt consisting of destructive reagents, such as gallium, indium, tin, and zinc (destructive composition), along the grain boundaries in unstressed metal samples. It was experimentally confirmed that the penetration rate of the destructive composition was limited by processes at the liquid phase front, including dissolution of intergranular boundary areas, recrystallization to form solid solution crystals, and opening of new crack areas under the pressure of growing crystals. The experimental findings indicated a significant decrease in the strength of aluminum alloys resulting from the effect of the destructive composition. Analytical dependences and corresponding empirical coefficients characterizing the effects of the destructive composition on structural aluminum alloy elements under tensile loads were derived. These empirical coefficients enable the determination of conditions under which aluminum alloy structures fail under the influence of destructive compounds, considering the tensile stresses. The effect of the destructive alloy on the onset of fatigue damage and the durability of aluminum alloy structures under asymmetric cyclic stresses was examined. Significant reduction in the fatigue strength of aluminum structures under the influence of the destructive composition was experimentally confirmed.
ISSN:1068-1302
1573-9066
DOI:10.1007/s11106-024-00443-3