Cyclic plasticity and strain localization in cast Gamma-TiAl based alloy

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F11%3A00397311" target="_blank" >RIV/68081723:_____/11:00397311 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.proeng.2011.04.231" target="_blank" >http://dx.doi.org/10.1016/j.proeng.2011.04.231</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.proeng.2011.04.231" target="_blank" >10.1016/j.proeng.2011.04.231</a>

Result language
angličtina
Original language name
Cyclic plasticity and strain localization in cast Gamma-TiAl based alloy
Original language description
Cyclic strain localization and observation of surface relief in nearly lamellar cast Gamma-TiAl based alloy Ti?48Al?2Nb?2Cr?0.82B (all in at. %) cycled in strain control were experimentally studied. Hysteresis loop area, the cyclic hardening curves, thecyclic stress-strain curve and VH parameter were measured. Surface relief of cyclically strained specimens was observed using scanning electron microscopy. The variations of the VH parameter indicate the cyclic slip localization. The localization has a pronounced effect on surface relief formation. Persistent slip markings are formed on the surface along interlamellar interfaces gamma/aplha2 and gamma/gamma. These locations were nuclei for fatigue cracks in the interior of grains. Experimental results concerning the loop shape parameter and surface relief are used to discuss the role of cyclic slip localization on the cyclic stress-strain response and fatigue crack initiation.
Czech name
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Czech description
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Project
<a href="/en/project/GAP107%2F11%2F0704" target="_blank" >GAP107/11/0704: Optimization of structure and properties of advanced high-temperature cast materials alloyed with carbon by complex heat treatment</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
11th International conference on the Mechanical Behavior of Materials (ICM)
ISBN
—
ISSN
1877-7058
e-ISSN
—
Number of pages
6
Pages from-to
1390-1395
Publisher name
Elsevier
Place of publication
Amsterdam
Event location
Lake Como
Event date
Jun 5, 2011
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000300451301068

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