Formation of μ phase during thermal exposure and its effect on the properties of K465 superalloy
Specimens of K465 superalloy were thermally exposed at 950 and 1050 °C. μ phase precipitated in the form of needles or platelets. μ phase did not produce multiple internal cracks or interfacial decohesion during the room temperature tensile and high temperature stress rupture tests. On the contrary,...
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Veröffentlicht in: | Scripta materialia 2006-08, Vol.55 (4), p.331-334 |
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Hauptverfasser: | , , , , |
Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | Specimens of K465 superalloy were thermally exposed at 950 and 1050
°C. μ phase precipitated in the form of needles or platelets. μ phase did not produce multiple internal cracks or interfacial decohesion during the room temperature tensile and high temperature stress rupture tests. On the contrary, μ phase produced a large plastic deformation showing the high ductility. μ phase played an insignificant role in the reduction of high temperature stress rupture lives and room temperature tensile ductility; thus, it did not affect the room temperature tensile and high temperature stress rupture properties of K465 alloy. |
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ISSN: | 1359-6462 1872-8456 |
DOI: | 10.1016/j.scriptamat.2006.04.032 |