Effect of Microstructure Change on the Crack Formation of Heat Treated Ti-Al Intermetallic Compound

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F12%3A00380662" target="_blank" >RIV/68081723:_____/12:00380662 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Effect of Microstructure Change on the Crack Formation of Heat Treated Ti-Al Intermetallic Compound
Original language description
Heat treatments were conducted under several conditions in order to clarify the effect of holding temperature, time and cooling rate on microstructure of Ti-46Al-7Nb-0.7Cr-0.2Ni-0.1Si and Ti-45Al-10V (mol%) alloys. Indentation tests were performed in order to understand the effect of beta phase precipitation on crack formation of microstructure controlled Ti-45Al-10V alloy. As for Ti-46Al-7Nb-0.7Cr-0.2Ni-0.1Si alloy, phase condition on several temperatures was estimated experimentally. It is found thatthe cooling rate where the massive transformation occurs ranges from -300K/s to -5K/s. Furthermore, in order to obtain the fully lamellar structure, the alloy should be cooled slower than -1K/s. As regards the heat treatment on Ti-45Al-10V alloy, fully lamellar structure was formed by cooling from (alfa+gama) two phase state. However, beta precipitates were observed near the lamellar colony boundaries when the material was cooled from (beta+gama) two phase state. Though the cracks are no
Czech name
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Czech description
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Project
<a href="/en/project/ME10117" target="_blank" >ME10117: Development of new TiAl based intermetalics showing improved mechanical properties on the basis of microstructure control by thermo-mechanical process</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
New Methods of Damage and Failure Analysis of Structural Parts
ISBN
978-80-248-2802-2
ISSN
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e-ISSN
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Number of pages
8
Pages from-to
185-192
Publisher name
VŠB-TU Ostrava
Place of publication
Ostrava
Event location
Ostrava
Event date
Sep 10, 2012
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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