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Damage Mechanisms i...
Damage Mechanisms in Silicon-Molybdenum Cast Irons Subjected to Thermo-mechanical Fatigue
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- Norman, Viktor, 1988- (författare)
- Linköpings universitet,Konstruktionsmaterial,Tekniska fakulteten
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- Skoglund, Peter (författare)
- Scania CV AB, Materials Technology, Södertälje
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- Leidermark, Daniel, 1980- (författare)
- Linköpings universitet,Hållfasthetslära,Mekanik och hållfasthetslära,Tekniska fakulteten
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- Moverare, Johan, 1973- (författare)
- Linköpings universitet,Konstruktionsmaterial,Tekniska fakulteten
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(creator_code:org_t)
- Elsevier, 2017
- 2017
- Engelska.
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Ingår i: International Journal of Fatigue. - : Elsevier. - 0142-1123 .- 1879-3452. ; 99:2, s. 258-265
- Relaterad länk:
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https://liu.diva-por... (primary) (Raw object)
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http://liu.diva-port...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The damage mechanisms active in silicon-molybdenum cast irons, namely EN-GJS-SiMo5-1 and SiMo1000, under thermo-mechanical fatigue and combined thermo-mechanical and high-cycle fatigue conditions have been investigated. The studied load conditions are those experienced at critical locations in exhaust manifolds of heavy-vehicle diesel engines, namely a temperature cycle of 300–750 °C with varied total mechanical and high-cycle fatigue strain ranges. It is established that oxide intrusions are formed in the early life from which macroscopic fatigue cracks are initiated close to the end-of-life. However, when high-cycle fatigue loading is superimposed, small cracks are preferentially initiated at graphite nodules within the bulk. In addition, it is found that both the oxidation growth rate and casting defects located near the surface affect the intrusion growth.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering (hsv//eng)
Nyckelord
- Cast iron
- Thermo-mechanical fatigue
- High-cycle fatigue
- Enviromental assisted fatigue
- Fatigue crack growth
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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