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Effect of scanning speeds on mechanical properties of CoCrNi medium entropy alloy prepared by laser additive manufacturing.
Kong, Xu; Li, Yang; Tan, Na; Cai, Lanrong; Lu, Zichuan; Li, Qiu; Deng, Qiyao; Zhou, Yujie; Wang, Jia; Hu, Dingchao.
Afiliación
  • Kong X; School of mechanical Engineering, Tianjin University of Technology and Education, Tianjin, 300222, China.
  • Li Y; School of mechanical Engineering, Tianjin University of Technology and Education, Tianjin, 300222, China.
  • Tan N; National-Local Joint Engineering Laboratory of Intelligent Manufacturing Oriented Automobile Die & Mould, Tianjin University of Technology and Education, Tianjin, 300222, China.
  • Cai L; School of mechanical Engineering, Tianjin University of Technology and Education, Tianjin, 300222, China.
  • Lu Z; School of mechanical Engineering, Tianjin University of Technology and Education, Tianjin, 300222, China.
  • Li Q; Aerospace Research Institute of Materials and Processing Technology, Beijing, 10076, China.
  • Deng Q; School of mechanical Engineering, Tianjin University of Technology and Education, Tianjin, 300222, China.
  • Zhou Y; School of mechanical Engineering, Tianjin University of Technology and Education, Tianjin, 300222, China.
  • Wang J; School of mechanical Engineering, Tianjin University of Technology and Education, Tianjin, 300222, China.
  • Hu D; School of mechanical Engineering, Tianjin University of Technology and Education, Tianjin, 300222, China.
Heliyon ; 10(1): e23850, 2024 Jan 15.
Article en En | MEDLINE | ID: mdl-38192775
ABSTRACT
Medium entropy alloy (MEA) is a hot spot in the field of material research in recent years. At present, the most widely used processing method of MEAs is "casting-rolling-heat treatment", and the preparation of CoCrNi MEA by laser additive manufacturing (LAM) is still in primary stage. In this study, CoCrNi MEAs were fabricated with different scanning speeds by laser additive manufacturing, and the influence of scanning speed on its mechanical properties was investigated. The results show that higher scanning speed can significantly improve the mechanical properties of CoCrNi MEA. Compared with the low-speed laser additive manufacturing (LSLAM) MEA, the tensile strength of high-speed laser additive manufacturing (HSLAM) MEA is increased by 5.6 % and the fracture strain is increased by 60 %, which is mainly due to the entanglement of 1/6<112> and 1/2<110> dislocations and the defect structure at the grain boundary. LAM is a promising technology that can promote the development and application of MEAs in industry.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Heliyon Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Heliyon Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido