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Microporosity formation in nickel-base superalloys in relation to their solidification sequence
Lecomte-Beckers, Jacqueline; Lamberigts, M.
1986In Proceedings of the International Conference of High Temperature Alloys for Gas Turbine and Other Applications
Peer reviewed
 

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Keywords :
microporosity formation; turbine blades; differential thermal analysi; solidification feature; foundry; LiMaRC - Liège Materials Research Center
Abstract :
[en] This work is aimed at showing how the proneness of superalloys to microporosity formation can be estimated by the tsP* pararneter which makes use of various solidification features. The latter can be derived from quantitative differential thermal analysis (DTA) resuits through the original method described in the text. The technique was applied to two IN 100 master meUs of distinct grades (virgin or revert) which had been showrt to behave very differently in the foundry. It led to ascribe the poorer performance of the revert meit to its particular solidification sequence leading higher dendrite tortuosity and lesser residual liquid fluidity.
Disciplines :
Materials science & engineering
Chemical engineering
Author, co-author :
Lecomte-Beckers, Jacqueline ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Science des matériaux métalliques
Lamberigts, M.
Language :
English
Title :
Microporosity formation in nickel-base superalloys in relation to their solidification sequence
Publication date :
1986
Event name :
International Conference of High Temperature Alloys for Gas Turbine and Other Applications
Event place :
Liège, Belgium
Audience :
International
Main work title :
Proceedings of the International Conference of High Temperature Alloys for Gas Turbine and Other Applications
Publisher :
Kluwer
Pages :
745-755
Peer reviewed :
Peer reviewed
Available on ORBi :
since 15 October 2009

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