The Microstructure Degradation of the IN 713C Nickel-Based Superalloy After the Stress Rupture Tests.

Autor: Matysiak, Hubert, Zagorska, Malgorzata, Balkowiec, Alicja, Adamczyk-Cieslak, Boguslawa, Cygan, Rafal, Cwajna, Jan, Nawrocki, Jacek, Kurzydłowski, Krzysztof
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Zdroj: Journal of Materials Engineering & Performance; Sep2014, Vol. 23 Issue 9, p3305-3313, 9p
Abstrakt: The aim of the work was to examine the degradation phenomena taking place in the microstructure of the as-cast IN 713C superalloy after stress rupture tests, performed at T = 980 °C under a tensile stress of 150 MPa. A directional growth of γ′ phase (rafting) and decomposition of the NbC primary carbides accompanied by the precipitation of MC secondary carbides rich in chromium and of γ′ phase were observed. It was also indicated that the decomposition of the NbC primary carbides may be accompanied by the precipitation of MB borides rich in Mo. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index