Degradation on L-605 heat resistant alloy used for mono-propellant thrusters

Kenichi Kajiwara*, Hideshi Kagawa, Daisuke Goto, Yoko Yamabe-Mitarai, Hideyuki Murakami, Yoshinori Ono, Daisuke Kuroda

*この研究の対応する著者

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

Haynes25 (L-605) is a common heat resistant alloy used in mono-propellant structures and in screen materials for catalyst beds. The lifetime requirements for thrusters have expanded dramatically after studies conducted in the 1970s on mono-propellant materials used for achieving a long life. The material design had not changed for a long time, and L-605 was still used as thruster material due to its good heritage. Some important degradation incidents were found in the test-unit break-up inspection after the thruster life tests. The Japanese research team focused on the L-605 degradations found on the catalyst bed screen mesh used for mono-propellant thruster. The team analyzed the surface of the wire material and the cross-section of the wire screen mesh used in the life tests. The investigation showed that the degradation was caused by nitriding L-605 component elements. The team also suggested the installation of a platinum coating on the material surface as a L-605 nitric degradation measure.

本文言語English
ホスト出版物のタイトル45th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit
出版ステータスPublished - 2009 12月 1
外部発表はい
イベント45th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit - Denver, CO, United States
継続期間: 2009 8月 22009 8月 5

出版物シリーズ

名前45th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit

Other

Other45th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit
国/地域United States
CityDenver, CO
Period09/8/209/8/5

ASJC Scopus subject areas

  • 航空宇宙工学
  • 制御およびシステム工学
  • 宇宙惑星科学
  • エネルギー(全般)
  • 電子工学および電気工学
  • 機械工学

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