Crack Resistance Characterization in TiAl Intermetallics with Enhanced Toughness
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F17%3A00480944" target="_blank" >RIV/68081723:_____/17:00480944 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.4028/www.scientific.net/KEM.741.13" target="_blank" >http://dx.doi.org/10.4028/www.scientific.net/KEM.741.13</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.4028/www.scientific.net/KEM.741.13" target="_blank" >10.4028/www.scientific.net/KEM.741.13</a>
Alternative languages
Result language
angličtina
Original language name
Crack Resistance Characterization in TiAl Intermetallics with Enhanced Toughness
Original language description
The paper is focused on the analysis of the role of lamellar microstructure in fracture performance of model TiAl intermetallic compound. Coarse lamellar colonies and, at the same time, fine lamellar morphology were prepared by compressive deformation at 1553 K (region of stable alpha phase in TiAl equilibrium diagram) followed by controlled cooling to 1473 K (region of alpha+gamma phase) with delay on this temperature and then cooling down. The fracture toughness was evaluated by means of chevron notch technique. In addition, because of enhanced toughness, crack resistance curves were obtained by load - unload technique of pre-racked beams, namely in two directions of crack propagation relative to lamellar structure. Extensive development of shear ligament toughening mechanism was observed in fracture surfaces leading to quite good fracture toughness thanks to the heat treatment applied.
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
20501 - Materials engineering
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Analysis of Damage Features and Failures for Structural Materials and Parts
ISBN
978-3-0357-1127-1
ISSN
1013-9826
e-ISSN
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Number of pages
6
Pages from-to
13-18
Publisher name
Trans Tech Publications Ltd
Place of publication
Zürich
Event location
Yokohama
Event date
Nov 1, 2016
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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