열처리공학회지 (Journal of the Korean Society for Heat Treatment)

  • 제36권3호
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  • Pages.145-152
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  • 2023
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  • 1225-1070(pISSN)
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  • 2508-4046(eISSN)
한국열처리공학회 (The Korean Society for Heat Treatment)
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DOI QR코드

DOI QR Code

Ti-Mo-Fe 합금의 Fe 함량에 따른 기계적 특성과 전기화학적 특성 비교·분석

Effect of Fe Content on Mechanical and Electrochemical Properties of Ti-Mo-Fe Alloys

  • 김지원 (순천대학교 신소재공학과) ;
  • 박정연 (순천대학교 신소재공학과) ;
  • 강민 ((주) 엠티아이지) ;
  • 박지환 ((주) 엠티아이지) ;
  • 이동근 (순천대학교 신소재공학과)
  • Ji-Won Kim (Department of Materials Metallurgical Engineering, Suncheon University) ;
  • Jeong-Yeon Park (Department of Materials Metallurgical Engineering, Suncheon University) ;
  • Min Gang (Material Technical Innovation Group (MTIG)) ;
  • Ji-Hwan Park (Material Technical Innovation Group (MTIG)) ;
  • Dong-Geun Lee (Department of Materials Metallurgical Engineering, Suncheon University)
  • 투고 : 2023.05.12
  • 심사 : 2023.05.25
  • 발행 : 2023.05.30
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초록

β titanium alloys containing β stabilizing elements such as V, Nb, Ta, Mo and Fe are widely used etc, due to their excellent specific strength, corrosion resistance, fatigue strength and easy formability. New metastable β titanium alloys are developed containing low-cost elements (Mo and Fe) in this study. Fe element is a strong β-stabilizer which can affect the mechanical and electrochemical properties of Ti-5Mo-xFe (x = 1, 4 wt%) alloys. These properties were analyzed in connection with microstructure and phase distribution. Ti-5Mo-4Fe alloy showed higher compression yield stress and maximum stress than Ti-5Mo-1Fe alloy due to solid-solution hardening and grain refinement hardening effect. As Fe element increased, Fe oxide formation and reduction of ${\bar{Bo}}$ (bond order) value affect the decrease of corrosion resistance. Ti-5Mo-xFe alloys were more excellent than Ti-6Al-4V ELI alloy.

키워드

과제정보

본 연구는 산업통상자원부(MOTIE)와 한국산업기술평가관리원(KEIT)의 산업기술혁신사업의 연구지원으로 수행되었으며(No. 20010047), 이에 감사드립니다.

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