Journal of Powder Materials (한국분말재료학회지)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Effect of Anisotropy on the Wear Behavior of Age-Treated Maraging Steel Manufactured by LPBF

시효 열처리를 적용한 LPBF 제조된 마레이징 강의 마모 거동에 대한 이방성의 영향

  • Seung On Lim (Department of Advanced Materials Engineering, Sunchon National University) ;
  • Se-Eun Shin (Department of Advanced Materials Engineering, Sunchon National University)
  • 임승온 (순천대학교 첨단신소재공학과) ;
  • 신세은 (순천대학교 첨단신소재공학과)
  • Received : 2024.06.14
  • Accepted : 2024.06.23
  • Published : 2024.08.28
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Abstract

Maraging steel has excellent mechanical properties resulting from the formation of precipitates within the matrix through aging treatment. Maraging steel fabricated by the laser powder bed fusion (LPBF) process is suitable for applications including precise components and optimized design. The anisotropic characteristic, which depends on the stacking direction, affects the mechanical properties. This study aimed to analyze the influence of anisotropy on the wear behavior of maraging steel after aging treatment. The features of additive manufacturing tended to disappear after heat treatment. However, some residual cellular and dendrite structures were observed. In the wear tests, a high wear rate was observed on the building direction plane for all counter materials. This is believed to be because the oxides formed on the wear track positively affected the wear characteristics; meanwhile, the bead shape in the stacking direction surface was vulnerable to wear, leading to significant wear.

Keywords

Acknowledgement

본 연구는 순천대학교 교연비 사업에 의하여 연구되었습니다.

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