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2020 | OriginalPaper | Chapter

Hot Corrosion and Creep Properties of Ni-Base Single-Crystal Superalloys

Authors : Yutaka Koizumi, Kyoko Kawagishi, Tadaharu Yokokawa, Michinari Yuyama, Yuji Takata, Hiroshi Harada

Published in: Superalloys 2020

Publisher: Springer International Publishing

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Abstract

Hot corrosion behavior at 700 °C (Type II) and 900 °C (Type I) and creep property from 800 to 1100 °C were investigated for representative alloys from the first generation to the sixth generation of Ni-base single-crystal superalloys. From the metal loss in the corrosion test and creep rupture life, it is found that corrosion resistance and creep strength are improved with generation advances. Regression analysis was performed to the results of the corrosion test at both 700 and 900 °C. Equations for predicting corrosion characteristics were constructed, and alloying elements contributing to corrosion resistance were estimated.

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Title: Hot Corrosion and Creep Properties of Ni-Base Single-Crystal Superalloys
Authors: Yutaka Koizumi
Kyoko Kawagishi
Tadaharu Yokokawa
Michinari Yuyama
Yuji Takata
Hiroshi Harada
Publisher: Springer International Publishing
Book: Superalloys 2020
Print ISBN: 978-3-030-51833-2

Electronic ISBN: 978-3-030-51834-9

Copyright Year: 2020
DOI: https://doi.org/10.1007/978-3-030-51834-9_72

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