Review on mechanical thermal properties of superalloys and thermal barrier coating used in gas turbines

Sunguk Wee, Jeonghyeon Do, Kyomin Kim, Changho Lee, Changsung Seok, Baig Gyu Choi, Yoonsuk Choi, Woochul Kim

Research output: Contribution to journalReview article

Abstract

This paper describes the manufacturing method and properties of a superalloy as a gas turbine blade material and a thermal barrier coating to protect it. The development process of superalloy and characteristics of each casting method were introduced. In particular, the single crystal superalloys were analyzed for creep and tensile properties with temperature according to chemical composition. In addition, the theories of creep life prediction models were summarized and comparative analysis was performed. Finally, the manufacturing processes of thermal barrier coatings were introduced, and the characteristics and effects of mechanical, thermal, and durability characteristics of each manufacturing process are described. We believe that this comprehensive review will help not only the gas turbine industry/community, but also material scientists, measurement physicists/engineers, and theorists interested in superalloys and high-temperature ceramics.

Original languageEnglish
Article number5476
JournalApplied Sciences (Switzerland)
Volume10
Issue number16
DOIs
Publication statusPublished - 2020 Aug

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Instrumentation
  • Engineering(all)
  • Process Chemistry and Technology
  • Computer Science Applications
  • Fluid Flow and Transfer Processes

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