Journal of Powder Materials (한국분말재료학회지)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Microstructural Effects on the Mechanical Properties of Ti-6Al-4V Fabricated by Direct Energy Deposition

직접용착방식으로 적층된 Ti-6Al-4V의 기계적 특성에 미치는 미세조직 영향 연구

  • Juho Kim (School of Materials Science and Engineering, Kookmin University) ;
  • Seoyeon Jeon (School of Materials Science and Engineering, Kookmin University) ;
  • Hwajin Park (School of Materials Science and Engineering, Kookmin University) ;
  • Taeyoel Kim (School of Materials Science and Engineering, Kookmin University) ;
  • Hyunjoo Choi (School of Materials Science and Engineering, Kookmin University)
  • 김주호 (국민대학교 신소재공학부) ;
  • 전서연 (국민대학교 신소재공학부) ;
  • 박화진 (국민대학교 신소재공학부) ;
  • 김태열 (국민대학교 신소재공학부) ;
  • 최현주 (국민대학교 신소재공학부)
  • Received : 2024.06.12
  • Accepted : 2024.07.08
  • Published : 2024.08.28
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Abstract

This study explored the process-structure-property (PSP) relationships in Ti-6Al-4V alloys fabricated through direct energy deposition (DED) additive manufacturing. A systematic investigation was conducted to clarify how process variables-specifically, manipulating the cooling rate and energy input by adjusting the laser power and scan speed during the DED process-influenced the phase fractions, pore structures, and the resultant mechanical properties of the samples under various processing conditions. Significant links were found between the controlled process parameters and the structural and mechanical characteristics of the produced alloys. The findings of this research provide foundational knowledge that will drive the development of more effective and precise control strategies in additive manufacturing, thereby improving the performance and reliability of produced materials. This, in turn, promises to make significant contributions to both the advancement of additive manufacturing technologies and their applications in critical sectors.

Keywords

Acknowledgement

본 연구는 2022년도 정부(과학기술정보통신부)의 재원으로 한국연구재단의 지원(No. 2022R1A5A1030054)을 받아 수행되었습니다.

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