Proceedings of the Korean Society for Technology of Plasticity Conference (한국소성가공학회:학술대회논문집)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
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Development of Alloy 718 Nozzle for Jet Propulsion Component

고속 추진체용 Alloy 718 노즐 단조품 개발

  • 김정한 (한국기계연구원, 재료기술연구소/특수합금연구그룹) ;
  • 김남용 (한국기계연구원, 재료기술연구소/특수합금연구그룹) ;
  • 염종택 (한국기계연구원, 재료기술연구소/특수합금연구그룹) ;
  • 홍재근 (한국기계연구원, 재료기술연구소/특수합금연구그룹) ;
  • 박노광 (한국기계연구원, 재료기술연구소/특수합금연구그룹)
  • Published : 2008.05.08
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Abstract

Alloy 718 nozzle component was manufactured by hot working and electron beam welding process. In this process, domestic 718 materials were applied and evaluated. Hot compression tests were carried out at a lot of process conditions and microstructural evaluation was investigated. Using the results, FEM simulations were performed in order to optimize the hot working process. After hot working, forged work-pieces were machined and welded by electron beam. Final nozzle component were heat treated and their microstructure and mechanical properties were investigated.

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