Transformation of Surface Roughness of Mg Alloy Tubes During Laser Dieless Drawing
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F20%3A00344461" target="_blank" >RIV/68407700:21110/20:00344461 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1007/s11665-020-05234-6" target="_blank" >https://doi.org/10.1007/s11665-020-05234-6</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s11665-020-05234-6" target="_blank" >10.1007/s11665-020-05234-6</a>
Alternative languages
Result language
angličtina
Original language name
Transformation of Surface Roughness of Mg Alloy Tubes During Laser Dieless Drawing
Original language description
The paper investigates the transformation of surface roughness of tubes made from magnesium and magnesium alloys as a function of their longitudinal strain during laser dieless drawing. Experimental studies on three materials (AZ31, MgCa08, and pure Mg) have shown that the dependence of roughness on the longitudinal strain is nonlinear and exhibits a minimum. The proposed explanation for this is that the transformation of surface roughness occurs following two mechanisms. The first mechanism involves stretching of the tube and the decreasing of existing roughness with the increasing elongation. The second mechanism is based on the strain-induced surface roughening phenomenon. This mechanism leads to an increase in roughness with the increasing elongation. To analyze these mechanisms, a numerical model of roughness formation is used. It is experimentally shown that the position of the minimum roughness concerning the tube longitudinal strain is correlated with the stress-strain curve of the material under laser dieless drawing conditions. The obtained results provide a practical way to reduce surface roughness of tubes produced by the laser dieless drawing process. According to the proposed method, to achieve minimum roughness, it is necessary to keep the longitudinal strain under a specific value. This value is close to the strain, which corresponds to the maximum stress on the stress-strain curve of the material for temperature and strain rate, corresponding laser dieless drawing conditions.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20501 - Materials engineering
Result continuities
Project
—
Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Materials Engineering and Performance
ISSN
1059-9495
e-ISSN
1544-1024
Volume of the periodical
29
Issue of the periodical within the volume
11
Country of publishing house
US - UNITED STATES
Number of pages
8
Pages from-to
7736-7743
UT code for WoS article
000585857100002
EID of the result in the Scopus database
2-s2.0-85095131454