Results 171 to 180 of about 2,415 (217)

Fatigue Fracture of AZ91 Magnesium Alloy

Advances in Computational Intelligence in Materials Science, 2023
On today's environment, the use of the proper material is critical in every business. Materials must be suitable for or meet the specifications of the industrial component. Magnesium alloys are well recognized as the lightest structural alloys. To strengthen its physical attributes, mg is alloyed with other elements.
Subash Chandrabose E, Gokulakrishnan M, Naveenkumar P, Babu C   +3 more
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Precipitation Simulation of AZ91 Alloy

JOM, 2014
Precipitation simulation of AZ91 (Mg-9Al-1Zn; all compositions are in wt.% unless otherwise stated.) magnesium alloy is carried out in this work using the PanPrecipitation module of Pandat™ software. In addition to the software, the thermodynamic database, mobility database, and precipitation database for AZ91 were developed to perform the simulation ...
C. Zhang, W. Cao, S.-L. Chen, J. Zhu, F. Zhang, A. A. Luo, R. Schmid-Fetzer   +6 more
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Superplasticity in magnesium alloy AZ91

Materials Science and Engineering: A, 1991
Abstract The superplastic properties of conventionally cast and rapidly solidified magnesium alloy AZ91 have been studied. The latter material had by far the best superplastic properties, and elongations of at least 1000% were obtained in the temperature range 275–300 °C. Formation of pores during superplastic deformation had an adverse effect on the
Jan Ketil Solberg, Janne Tørklep, Øystein Bauger, Haavard Gjestland   +3 more
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Superplasticity of an AZ91 Magnesium Alloy

Materials Science Forum, 2007
The superplastic deformation characteristics of the AZ91, the mostly used magnesium alloy, were investigated at various strain rates in the interval from 3x10-5 to 1x10-2 s-1 and temperature of 420 °C. To prepare superplastic alloys thermo-mechanical treatment was used.
Zoltán Száraz, Zuzanka Trojanová, Talant Ryspaev, Volker Wesling   +3 more
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Corrosion Behavior of AZ91/AZ91-0.4%Nd Alloys in 3.5wt.% NaCl

Applied Mechanics and Materials, 2013
The microstructure and corrosion behavior of commercial AZ91/AZ91-0.4%Nd alloys were investigated by OM, immersion test and weight-loss method. It was found that the number of Nd element in the AZ91 magnesium alloy has effect on the grain refining efficiency, the coarse β-Mg17Al12 phase distributed along the grain boundaries transformed into granular ...
Jumei Zhang, Zhi Hu Wang, Hui Cai, Ming Zhu, Li Bin Niu   +4 more
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Dendritic solidification of magnesium alloy AZ91

Metallurgical Transactions A, 1990
The magnesium alloy AZ91 has been studied under different solidification conditions, to establish the details of the as-cast structure. The electron backscattered pattern (EBSP) technique has been used to determine the crystallographic directions of the dendrite stem and the secondary arms.
K. Pettersen, O. Lohne, N. Ryum
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Surface modification of the AZ91 magnesium alloy

Archives of Civil and Mechanical Engineering, 2015
The main purpose of the study was to modify the surface layer of the AZ91 magnesium alloys with the use of the GTAW (Gas Tungsten Arc Welding) method. The remelting process was conducted with the use of an AC current with the concurrent cooling of the magnesium alloy in the liquid nitrogen bath.
M. Strzelecka, J. Iwaszko, M. Malik, S. Tomczyński   +3 more
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AZ91D and AZ91E ALLOYS

Alloy Digest, 1988
Abstract AZ91D and AZ91E alloys are magnesium-aluminum-zinc-manganese alloys of closely controlled purity. Ingot is available for use in the production of improved corrosion resistant sand, permanent-mold and die castings. AZ91D is used for die casting and AZ91E for sand and permanent-mold castings. This datasheet provides information on
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The Origin of Microporosity in Magnesium Alloy AZ91

SAE Technical Paper Series, 1994
<div class="htmlview paragraph">The persistent occurrence of microporosity defects in AZ91 castings has made it difficult to consistently produce sound parts. Earlier work established that dissolved hydrogen gas causes microporosity defects in AZ91; however, the exact role of hydrogen in the nucleation and growth of microporosity was not ...
James D. Shearouse, Barry A. Mikucki
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Improvements in the metallography of as-cast AZ91 alloy

Materials Characterization, 2004
Evaluation of the grain structure and grain size of cast magnesium–aluminum alloys is usually performed after grainboundary-enhancing treatments which involve tedious heat treatment at high temperature. In this work, a rapid and simple etching method is described for metallographic preparation of AZ91 alloy, revealing grains without altering the as ...
A Maltais, D Dubé, M Fiset, G Laroche, S Turgeon   +4 more
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