PEMILIHAN MATERIAL PELAPISAN UNTUK PENINGKATAN DAYA TAHAN BILAH TURBIN PESAWAT

Authors

  • Ni Made Kesuma Astuti Indrianingsih Putri Universitas Pertahanan RI
  • Sovian Aritonang Universitas Pertahanan RI
  • Toto Sudiro Universitas Pertahanan RI

Abstract

Pendekatan material baru yang canggih adalah mutlak untuk menjawab tantangan wahana udara pada masa kini. Adanya beban struktural dan keadaan ekstrim pada saat beroperasi meliputi temperatur dan tekanan tinggi menjadi parameter utama dalam pemilihan material baru yang akan digunakan. Penelitian ini menyajikan pemilihan kandidat material yang cocok untuk penghalang termal pada bilah turbin pesawat. Berbagai kegagalan bilah turbin yang selama ini dialami diantaranya ketahanan termal, oksidasi suhu tinggi, dan kelelahan siklus tinggi yang kemudian dijadikan acuan dalam melakukan pemilihan material baru. Didapati paduan superalloy berbasis nikel memiliki batasan dalam kinerja temperatur tinggi dan ketahanan fisik yang tinggi dari komposit menjadi perhatian khusus, karena merupakan properti utama yang fokus untuk aplikasi bilah pada mesin turbin gas pesawat terbang. Sehingga dilakukan komposit dengan material baru yang kuat pada kondisi operasi pada 12000C, yakni material dengan struktur keramik seperti SiC dan Si3N4 serta material dengan sturktur silisida seperti MoSi2.

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Published

2022-06-30

Issue

Vol. 5 No. 1 (2022): Jurnal Teknologi Daya Gerak

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Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access)