Article (Scientific journals)
Study of microporosity formation in nickel-base superalloys
Lecomte-Beckers, Jacqueline
1988In Metallurgical Transactions A: Physical Metallurgy and Materials Science, 19A(9), p. 2341-2348
Peer reviewed
 

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Keywords :
Microporosity Formation; Nickel-Base Superalloys; aluminum, titanium, and cobalt; LiMaRC - Liège Materials Research Center
Abstract :
[en] The susceptibility of nickel-base superalloys to microporosity formation is studied experimentally and theoretically. Analysis of a model introduced herein leads to formulation of a microporosity index, Ap*, which is expressed in terms of solidification parameters and alloy system properties. This index can be determined from information obtained by quantitative differential thermal analysis. The effect of composition on the formation of microporosity is evaluated. Thus, aluminum, titanium, and cobalt are found to increase, and chromium to decrease microporosity. The effect of carbon is beneficial or detrimental depending on the aluminum content in the alloy.
Disciplines :
Materials science & engineering
Physics
Chemistry
Author, co-author :
Lecomte-Beckers, Jacqueline ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Science des matériaux métalliques
Language :
English
Title :
Study of microporosity formation in nickel-base superalloys
Publication date :
1988
Journal title :
Metallurgical Transactions A: Physical Metallurgy and Materials Science
ISSN :
0360-2133
eISSN :
2379-0180
Publisher :
Springer Boston
Volume :
19A(9)
Pages :
2341-2348
Peer reviewed :
Peer reviewed
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