U. Kizhakkinan, S. Seetharaman, N. Raghavan, David W. Rosen
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Laser powder bed fusion additive manufacturing of maraging steel: A review
Laser powder bed fusion (L-PBF) is a popular metal additive manufacturing (AM) process used to manufacture complex metallic 3D components. Maraging steel is one of the metals used in AM and it belongs to the class of ultra-high-strength steels used in aerospace and tooling industries. In the L-PBF process, a laser beam is used to melt and fuse the metal powder particles. This creates a high thermal gradient and rapid cooling of the melt pool results in columnar grains. The microstructure of AM part is entirely different from the conventionally manufactured case and this necessitates post-AM heat treatments. The current paper reviews the effects of printing parameters and heat treatment on microstructure and mechanical properties of L-PBF produced maraging steel 300 alloy. Tensile, impact, fracture, and fatigue properties of as-built and heat-treated L-PBF parts are discussed in detail.
期刊介绍：
Areas of interest including, but not limited to: Additive manufacturing; Advanced materials and processing; Assembly; Biomedical manufacturing; Bulk deformation processes (e.g., extrusion, forging, wire drawing, etc.); CAD/CAM/CAE; Computer-integrated manufacturing; Control and automation; Cyber-physical systems in manufacturing; Data science-enhanced manufacturing; Design for manufacturing; Electrical and electrochemical machining; Grinding and abrasive processes; Injection molding and other polymer fabrication processes; Inspection and quality control; Laser processes; Machine tool dynamics; Machining processes; Materials handling; Metrology; Micro- and nano-machining and processing; Modeling and simulation; Nontraditional manufacturing processes; Plant engineering and maintenance; Powder processing; Precision and ultra-precision machining; Process engineering; Process planning; Production systems optimization; Rapid prototyping and solid freeform fabrication; Robotics and flexible tooling; Sensing, monitoring, and diagnostics; Sheet and tube metal forming; Sustainable manufacturing; Tribology in manufacturing; Welding and joining
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