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@article{53661,
author = {Harničárová, Marta and Valíček, Jan and Kušnerová, Milena and Kopal, Ivan and Litecká, Júlia and Kadnár, Milan and Kmec, Ján and Palková, Zuzana},
article_location = {Switzerland},
article_number = {2020},
doi = {http://dx.doi.org/10.4028/www.scientific.net/DDF.400.91},
keywords = {ECAP method; grain size; surface roughness; structure},
language = {eng},
issn = {1012-0386},
journal = {Defect and Diffusion Forum},
title = {Prediction of shortening and material grain size after extrusion using the ecap method},
url = {https://www.scientific.net/DDF.400.91},
volume = {400},
year = {2020}
}
TY - JOUR
ID - 53661
AU - Harničárová, Marta - Valíček, Jan - Kušnerová, Milena - Kopal, Ivan - Litecká, Júlia - Kadnár, Milan - Kmec, Ján - Palková, Zuzana
PY - 2020
TI - Prediction of shortening and material grain size after extrusion using the ecap method
JF - Defect and Diffusion Forum
VL - 400
IS - 2020
SP - 91-105
EP - 91-105
PB - Trans Tech Publications Ltd
SN - 10120386
KW - ECAP method
KW - grain size
KW - surface roughness
KW - structure
UR - https://www.scientific.net/DDF.400.91
L2 - https://www.scientific.net/DDF.400.91
N2 - Equal channel angular pressing (ECAP) is a widespread severe plastic deformation (SPD) method to fabricate ultrafine-grained bulk materials. In the field of materials engineering, this method has already experienced rapid development over the past few decades. In this research, the authors sought to create a prediction of shortening and the material particle size after extrusion using ECAP. Behaviours of essential functions are analysed here on samples of pure copper Cu 99.9. It is the measurement and analytical processing of changes in the values of selected structural and mechanical parameters depending on the reduction of the structural granularity. Parameters such as deformation speed, deformation work and ECAP mechanical performance are also included in the results. The change in structure and mechanical parameters is also newly demonstrated by measuring the change in the velocity of the longitudinal ultrasound wave during the experimental passes. Based on the results obtained, new computational algorithms for Excel and Matlab were developed. The algorithms developed here contain many new findings, conclusions and derivations addressing the integrity of the surface with the inner structure of materials. Algorithms are very well-suited for obtaining results on different materials quickly, for predicting and checking measured values, and for designing optimal measurement technology parameters for the ECAP method.
ER -
HARNIČÁROVÁ, Marta, Jan VALÍČEK, Milena KUŠNEROVÁ, Ivan KOPAL, Júlia LITECKÁ, Milan KADNÁR, Ján KMEC and Zuzana PALKOVÁ. Prediction~of~shortening~and~material~grain~size~after~extrusion~using the~ecap~method. \textit{Defect and Diffusion Forum}. Switzerland: Trans Tech Publications Ltd, vol.~400, No~2020, p.~91-105. ISSN~1012-0386. doi:10.4028/www.scientific.net/DDF.400.91. 2020.
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