The effect of severe plastic deformation on the mechanical properties and structure of brass
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27230%2F18%3A10239645" target="_blank" >RIV/61989100:27230/18:10239645 - isvavai.cz</a>
Alternative codes found
RIV/61989100:27360/18:10239645
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
The effect of severe plastic deformation on the mechanical properties and structure of brass
Original language description
Over the last few years, the great attention was paid to materials with grain size of diameter smaller than 1 µm. These materials were classified as Ultra-Fine Grained (UFG) materials with diameter of grains of the order of 100 to 1000 nm and nano-materials (NC) with mean diameters of grains smaller than 50 nm. This research concerned to the production of UFG materials, using Severe Plastic Deformation (SPD) process. One of the forming methods using the SPD process is the DRECE method. This method was used to achieve the UFG structure in brass strip sheet. The DRECE process is based on extrusion technology with zero removal of the sheet strip thickness with the ultimate aim of achieving a high degree of deformation in the formed material, resulting in a significant improvement of mechanical properties in the formed material. This method was used to achieve the UFG structure in brass strip sheet. The brass CuZn37 strip sheets were processed by severe plastic deformation by DRECE method. The mechanical properties and structure achieved in individual passes by the device at room temperature were analyzed. Deformation route "C" was applied, i. e. the sheets were rotated about 180o between subsequent forming passes. It was found that process SPD has a significant influence on the increase mechanical properties of forming materials. The highest mechanical properties including Rp0,2 of 314 MPa, Rm of 419 MPa and A80 =18 % were obtained after only three DRECE passes. The average grain size was below 40 µm. The obtained results are detailed analyzed in the final part of this paper.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20301 - Mechanical engineering
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
METAL 2018 : conference proceedings : reviewed version : 27th International Conference on Metallurgy and Materials : May 23rd-25th 2018, Hotel Voronez I, Brno, Czech Republic, EU
ISBN
978-80-87294-84-0
ISSN
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e-ISSN
neuvedeno
Number of pages
7
Pages from-to
419-425
Publisher name
Tanger
Place of publication
Ostrava
Event location
Brno
Event date
May 23, 2018
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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