Review on Fatigue of Additive Manufactured Metallic Alloys: Microstructure, Performance, Enhancement, and Assessment Methods.

Autor: Liu H; Centre for Advanced Structural Materials, Department of Mechanical Engineering, City University of Hong Kong, Kowloon, Hong Kong, 999077, China.; City University of Hong Kong Shenzhen Research Institute, Greater Bay Joint Division, Shenyang National Laboratory for Materials Science, Shenzhen, 518000, China.; CityU-Shenzhen Futian Research Institute, Shenzhen, 518000, China., Yu H; Centre for Advanced Structural Materials, Department of Mechanical Engineering, City University of Hong Kong, Kowloon, Hong Kong, 999077, China., Guo C; Centre for Advanced Structural Materials, Department of Mechanical Engineering, City University of Hong Kong, Kowloon, Hong Kong, 999077, China.; City University of Hong Kong Shenzhen Research Institute, Greater Bay Joint Division, Shenyang National Laboratory for Materials Science, Shenzhen, 518000, China.; CityU-Shenzhen Futian Research Institute, Shenzhen, 518000, China., Chen X; Centre for Advanced Structural Materials, Department of Mechanical Engineering, City University of Hong Kong, Kowloon, Hong Kong, 999077, China., Zhong S; Centre for Advanced Structural Materials, Department of Mechanical Engineering, City University of Hong Kong, Kowloon, Hong Kong, 999077, China., Zhou L; Centre for Advanced Structural Materials, Department of Mechanical Engineering, City University of Hong Kong, Kowloon, Hong Kong, 999077, China., Osman A; Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, Hong Kong, 999077, China., Lu J; Centre for Advanced Structural Materials, Department of Mechanical Engineering, City University of Hong Kong, Kowloon, Hong Kong, 999077, China.; City University of Hong Kong Shenzhen Research Institute, Greater Bay Joint Division, Shenyang National Laboratory for Materials Science, Shenzhen, 518000, China.; CityU-Shenzhen Futian Research Institute, Shenzhen, 518000, China.; Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, Hong Kong, 999077, China.; Hong Kong Branch of National Precious Metals Material Engineering Research Center (NPMM), City University of Hong Kong, Kowloon, Hong Kong, 999077, China.
Jazyk: angličtina
Zdroj: Advanced materials (Deerfield Beach, Fla.) [Adv Mater] 2024 Apr; Vol. 36 (17), pp. e2306570. Date of Electronic Publication: 2023 Nov 20.
DOI: 10.1002/adma.202306570
Abstrakt: Additive manufacturing (AM), which is a process of building objects in a layer-upon-layer fashion from designed models, has received unprecedented attention from research and industry because it offers outstanding merits of flexibility, customization, reduced buy-to-fly ratio, and cost-effectiveness. However, the fatigue performance of safety-critical industrial components fabricated by AM is still far below that obtained from conventional methods. This review discusses the microstructural heterogeneities, randomly dispersed defects, poor surface quality, and complex residual stress generated during the AM process that can negatively impact the fatigue performance of as-printed parts. The difference in microstructural origin of fatigue failure between conventionally manufactured and printed metals is reviewed with particular attention to the effects of the trans-scale microstructures on AM fatigue failure mechanisms. Various methods for mitigating the fatigue issue, including pre-process, inter-process, and post-process treatments, are illustrated. Empirical, semi-empirical, and microstructure-sensitive models are presented to predict fatigue strength and lifetime. Summary and outlooks for future development of the fatigue performance of AM materials are provided.
(© 2023 The Authors. Advanced Materials published by Wiley‐VCH GmbH.)
Databáze: MEDLINE
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