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Thermal-Mechanical...
Thermal-Mechanical Fatigue Behaviour of a New Single Crystal Superalloy : Effects of Si and Re Alloying
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- Segersäll, Mikael (författare)
- Linköpings universitet,Konstruktionsmaterial,Tekniska högskolan
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- Kontis, Paraskevas (författare)
- Department of Materials, University of Oxford, Oxford, United Kingdom
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- Pedrazzini, Stella (författare)
- Department of Materials, University of Oxford, United Kingdom
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- Bagot, Paul A.J. (författare)
- Department of Materials, University of Oxford, Oxford, United Kingdom
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- Moody, Michael P. (författare)
- Department of Materials, University of Oxford, Oxford, United Kingdom
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- Moverare, Johan (författare)
- Linköpings universitet,Konstruktionsmaterial,Tekniska högskolan
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- Reed, Roger C. (författare)
- Department of Materials, University of Oxford, Oxford, United Kingdom
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(creator_code:org_t)
- Elsevier, 2015
- 2015
- Engelska.
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Ingår i: Acta Materialia. - : Elsevier. - 1359-6454 .- 1873-2453. ; 95, s. 456-467
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
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- The mechanical behaviour of a new single crystal superalloy suitable for power generation applications is considered. Effects of alloying with either Si or Re are elucidated. Out-of-phase thermal-mechanical fatigue is emphasised, although to clarify the effects arising some static creep deformation tests are also carried out. A significant Si-effect is found: a modest addition of 0.25 wt. % Si increases the TMF life by a factor of 2. Thinner deformation bands which traverse the γ'-phase are promoted by Si alloying, with a concomitant greater resistance to recrystallization and cracking along them. Alloying with Re, whilst improving the creep behaviour more markedly than Si, does not have such a strong effect on TMF life. The results provide insights into the composition/performance relationships relevant to the TMF performance of single crystal superalloys.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering (hsv//eng)
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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