Sökning: onr:"swepub:oai:DiVA.org:liu-81531" >
Thermomechanical Fa...
Thermomechanical Fatigue of Single-Crystal Superalloys : Influence of Composition and Microstructure
-
- Moverare, Johan (författare)
- Linköpings universitet,Konstruktionsmaterial,Tekniska högskolan
-
- Segersäll, Mikael (författare)
- Linköpings universitet,Tekniska högskolan,Konstruktionsmaterial
-
- Sato, Atsushi (författare)
- Dept of Metallurgy and Materials, University in Birmingham, UK
-
visa fler...
-
- Johansson, Sten (författare)
- Linköpings universitet,Konstruktionsmaterial,Tekniska högskolan
-
- Reed, Roger (författare)
- Dept of Metallurgy and Materials, University of Birmingham, UK
-
visa färre...
-
(creator_code:org_t)
- 2012-10-02
- 2012
- Engelska.
-
Ingår i: Superalloys 2012. - Hoboken, NJ, USA : The Minerals, Metals, and Materials Society. - 9780470943205 - 9781118516430 ; , s. 369-377
- Relaterad länk:
-
https://urn.kb.se/re...
-
visa fler...
-
https://doi.org/10.1...
-
visa färre...
Abstract
Ämnesord
Stäng
- The thermomechanical fatigue (TMF) behaviour of a new high Cr-containing single crystal superalloy, known as STAL-15, is investigated. This is a candidate alloy for future industrial gas turbine (IGT) applications. TMF involves complex interactions between high and low temperature deformation mechanism, and this study highlights important factors controlling their interrelationship. Emphasis is placed particularly on the microslructural aspects which control deformation. It is demonstrated that the TMF performance of the new alloy is comparable to that of a second generation alloy such as CMSX-4, despite the absence of Re alloying. An addition of 0.25wt% Si significantly improves the resistance to TMF further; this is attributed to a greater resistance to recrystallization and cracking along the deformation bands that develops across the cross section of the specimen during testing. The TMF resistance increases with increasing primary γ′ size, but the degree of solutioning of the γ′ phase caused by the solution heat treatment seems to have no significant effect.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering (hsv//eng)
Nyckelord
- thermomechanical fatigue
- single cyrstal superalloy
- STAL-15
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)
Hitta via bibliotek
Till lärosätets databas