Effect of thermomechanical processing on structure and mechanical properties of WNiCo
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F25%3A00636652" target="_blank" >RIV/68378271:_____/25:00636652 - isvavai.cz</a>
Alternative codes found
RIV/61989100:27360/25:10258331
Result on the web
<a href="https://hdl.handle.net/11104/0373356" target="_blank" >https://hdl.handle.net/11104/0373356</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/mawe.202400354" target="_blank" >10.1002/mawe.202400354</a>
Alternative languages
Result language
angličtina
Original language name
Effect of thermomechanical processing on structure and mechanical properties of WNiCo
Original language description
The study characterizes the effects of intensive plastic deformation, realized by the rotary swaging method, on the deformation behavior of WNiCo tungsten heavy alloy samples. To assess the differences in the deformation behaviors of the samples, evaluated via uniaxial compression tests (UCT), and characterize the microstructures, i. e. occurrence and development of hardening/softening processes, two different temperatures of swaging (900 degrees C and 1200 degrees C), and two different uniaxial compression testing temperatures (1100 degrees C and 1200 degrees C), were used. A relatively high strain rate of 10 s-1 was chosen for the testing because of the typical use of the tungsten heavy alloy for kinetic penetrators. The achieved results indicate that the development of softening processes, especially dynamic recrystallization, can occur within the swaged material, depending on the processing/testing conditions. Swaging at the lower temperature of 900 degrees C introduced significant work hardening and accumulation of strain, which promoted the development of dynamic recrystallization during the subsequent hot temperature testing. Swaging at 1200 degrees C, on the other hand, facilitated dynamic recrystallization and relaxation (especially within the nickel-cobalt matrix) already during processing, which consequently increased the activation energy necessary for the development of recrystallization during the hot testing.
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
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Materialwissenschaft Und Werkstofftechnik
ISSN
0933-5137
e-ISSN
1521-4052
Volume of the periodical
56
Issue of the periodical within the volume
5
Country of publishing house
US - UNITED STATES
Number of pages
8
Pages from-to
697-704
UT code for WoS article
001504163000013
EID of the result in the Scopus database
2-s2.0-105007534861