Investigations of early stage precipitation in a tungsten-rich nickel-base superalloy using SAXS and SANS

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F14%3A00435772" target="_blank" >RIV/61389005:_____/14:00435772 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.jallcom.2014.05.154" target="_blank" >http://dx.doi.org/10.1016/j.jallcom.2014.05.154</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jallcom.2014.05.154" target="_blank" >10.1016/j.jallcom.2014.05.154</a>

Result language
angličtina
Original language name
Investigations of early stage precipitation in a tungsten-rich nickel-base superalloy using SAXS and SANS
Original language description
Characterization of the early stage precipitation is an important issue as it controls the emerging microstructure developed on Ni-based superalloys which are used as single crystal blades in gas turbines. The difficulty is that the gamma prime precipitation occurs at high temperatures and the reaction kinetic is very fast. Therefore, experimental methods with high time resolution are needed to monitor gamma' precipitation. By using the high flux synchrotron instrument HARWI-II set up of the Helmholtz-Zentrum Geesthacht with a fast data collection detector, it was possible to observe the creation of fine precipitates and their early growth in a tungsten-rich Ni-base superalloy. The cooling down of the superalloy from the single-phase region to lower temperatures already leads to the formation of precipitates in the size range of a few nm. The formation and growth of the precipitates at this early stage is described in detail. In addition, SANS measurements were performed at the new SAN
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BM - Solid-state physics and magnetism
OECD FORD branch
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Project
<a href="/en/project/GB14-36566G" target="_blank" >GB14-36566G: Multidisciplinary research centre for advanced materials</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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