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- W2342196913 abstract "ABSTRACT Life Assessment of Steam Turbine – the Microstructure and Gain size observation of turbine casing . This papers presents some results of the life assessment of steam turbine - the microstructure and gain size observation of turbine casing. The measurement of mechanical properties, the microstructure as well as the material composition of turbine casing have been performed. The chemical composition is found that both the lower and the upper casings are conforms to JIS G 5151 class SCPH 21. From the microstructure observation it could be confirmed that the microstructures consist of ferrite dominantly (white) and some of pearlite (dark), which is classified as Cr-Mo steel according to JIS G5151 class SCPH 21.It is also found that lower casing have smaller grain size (higher grain size number) than the upper casing . Keywords : Life assessment, steam turbine, turbine casing, microstructure, chemical composition and hardness. ABSTRAK Pengkajian umur Turbin Uap – Pengamatan Mikrostruktur dan ukuran butir dari rumah turbin . Tulisan ini menampilkan beberapa hasil dari pengkajian umur turbin uap–observasi mikrostruktur, ukuran butir rumah turbin uap. Pengu k uran sifat mekanis, mikrostruktur dan lomposisi kimia dari rumah turbin uap telah dilakukan. Komposisis kimia dari rumah turbin sebelah bawah dan sebelah atas keduanya sesuai dengan JIS G 5151 class SCPH 21. Dari pengamatan mikrostruktur dapat dikonfirmasi bahwa mikrostruktur terdiri dari dominant Ferrite dan sebagian pearlite yang dapat diklasifikasi sebagai baja Cr-Mo berdasarkan JIS G 5151 class SCPH 21. Dari pengkajian ini didapat juga bahwa rumah turbin sebelah bawah mempunyai ukuran butir yang lebih kecil dibandingkan dengan rumah turbin bahagian atas. Kata Kunci : Pengkajian umur ,turbin uap, rumah turbin, mikrostruktur, komposisi kimia, kekerasan" @default.
- W2342196913 created "2016-06-24" @default.
- W2342196913 creator A5069739598 @default.
- W2342196913 date "2016-03-02" @default.
- W2342196913 modified "2023-09-25" @default.
- W2342196913 title "LIFE ASSESSMENT OF STEAM TURBINE – THE MICROSTRUCTURE AND GRAIN SIZE OBSERVATION OF TURBINE CASING" @default.
- W2342196913 cites W3148928210 @default.
- W2342196913 doi "https://doi.org/10.17146/urania.2010.16.1.2440" @default.
- W2342196913 hasPublicationYear "2016" @default.
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