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Delta Phase Precipi...
Delta Phase Precipitation in Inconel 718
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- Azadian, Saied (författare)
- Malmö högskola,Teknik och samhälle (TS),Malmö University, Division of Technology and Society, 205 06 Malmö, Sweden
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- Liu-Ying, Wei (författare)
- Malmö högskola,Teknik och samhälle (TS),Malmö University, Division of Technology and Society, 205 06 Malmö, Sweden
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- Warren, Richard (författare)
- Malmö högskola,Teknik och samhälle (TS),Malmö University, Division of Technology and Society, 205 06 Malmö, Sweden
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(creator_code:org_t)
- Elsevier, 2004
- 2004
- Engelska.
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Ingår i: Materials Characterization. - : Elsevier. - 1044-5803 .- 1873-4189. ; :52, s. 7-16
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- The precipitation and dissolution kinetics of the δ-phase were studied in three wrought versions and one spray-formed (SF) version of the nickel alloy, Inconel 718. The precipitation in the spray-formed version and one wrought version was followed during isothermal ageing for up to 100 h between 700 and 1000 °C. The δ-phase precipitates in the form of nonuniformly distributed thin platelets and an alternative method of measuring volume fraction of this precipitate morphology is proposed. At and above 800 °C, the precipitation was measured quantitatively in terms of the volume fraction and platelet thickness distribution. The maximum rate of precipitation occurred at approximately 900 °C. The solvus temperature lay between 1005 and 1015 °C for Nb contents of 5.06 and 5.41 wt.%, respectively. A study was made of the dissolution of the δ-phase in all four alloys using isochronal treatments and this confirmed the above solvus temperature range. The effect of δ-phase and its dissolution on the grain growth of the alloys was also determined.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Annan materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Other Materials Engineering (hsv//eng)
Nyckelord
- Alloy 718
- Inconel 718
- Spray-formed IN 718
- Precipitation
- Delta phase
- Volume fraction
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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