Compression ductility of Zn-21 Al-2Cu prepared by powder metallurgy techniques
type: Generically Dependent Continuant
freetext keyword: Particles and powders; Plastic deformation; Scanning electron microscopy; Zinc-aluminium alloys Compression testing; Density (specific gravity); Ductility; Hardness; Metallographic microstructure; Plastic deformation; Scanning electron microscopy; Sintering; Strain rate; Zinc powder metallurgy; Rockwell hardness; Zinc alloys
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estado: published
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issue: 3
e iscopus: 2-s2.0-0031247922
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page end: 130
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date time value: article date 559
page start: 127
origen: scopus
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volume: 18
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crisid: 559
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has publication venue: Materials and Design
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doi: 10.1016/S0261-3069(97)00053-8
abstract: The microstructure and mechanical properties of room temperature-pressed specimens of Zinalco alloy (Zn-21Al-2Cu), prepared by powder metallurgy techniques, were evaluated. Cylinders of milled zinalco powder, with a particle size of 40-90 μm, were prepared under an average pressure of 580 MPa at room temperature. The density of zinalco green compacts was 5 %2b 0.02 g/cm3. This value remained almost without change after sintering. The Rockwell 'f' hardness of zinalco green compacts was 33 Rf. This value increased up to 46 Rf during the first 10 h of sintering. After this period, hardness remained almost constant. Green compacts behave plastically when tested under compression by varying the strain rates between 10-3 and 10-1 s-1. This material reached deformations as high as 113/. Compacts that were sintered for 20 h at 473 K in air fracture at much lower deformations. © 1998 Elsevier Science Ltd. All rights reserved.

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Materials and Design
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publication venue for: Compression ductility of Zn-21 Al-2Cu prepared by powder metallurgy techniques
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Continuant
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Generically Dependent Continuant
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