Effect of Mn dispersoid on the fatigue crack propagation of Al-Zn-Mg alloys

Aging treatments and tensile tests were conducted to determine the effect of Mn dispersoids on the fatigue crack propagation behavior of Al-Zn-Mg alloys. Manganese dispersoids in the alloys were found to increase the tortuosity of the crack path and improve the fatigue crack propagation properties,...

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Veröffentlicht in:Metallurgical Transactions, A A, 1996-02, Vol.27 (2), p.490-493
Hauptverfasser: Jo, Bong Lae, Park, Dong Seok, Nam, Soo Woo
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container_title Metallurgical Transactions, A
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creator Jo, Bong Lae
Park, Dong Seok
Nam, Soo Woo
description Aging treatments and tensile tests were conducted to determine the effect of Mn dispersoids on the fatigue crack propagation behavior of Al-Zn-Mg alloys. Manganese dispersoids in the alloys were found to increase the tortuosity of the crack path and improve the fatigue crack propagation properties, probably through a crack deflection and meandering effect.
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1543-1940
language eng
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subjects ALUMINIUM BASE ALLOYS
Applied sciences
CHEMICAL COMPOSITION
CRACK PROPAGATION
DISLOCATIONS
Exact sciences and technology
EXPERIMENTAL DATA
FATIGUE
Fractures
MAGNESIUM ALLOYS
MANGANESE ADDITIONS
MATERIALS SCIENCE
Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology
Metals. Metallurgy
MICROSTRUCTURE
PRECIPITATION
SAMPLE PREPARATION
STRESS INTENSITY FACTORS
TENSILE PROPERTIES
TRANSMISSION ELECTRON MICROSCOPY
YIELD STRENGTH
ZINC ALLOYS
ZIRCONIUM ADDITIONS
title Effect of Mn dispersoid on the fatigue crack propagation of Al-Zn-Mg alloys
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