While significant progress has been made in laser powder bed fusion (L-PBF) for metal additive manufacturing (AM), there is still limited large scale adoption of this advanced manufacturing technique by the industry. This paper covers the recent developments in L-PBF with discussions from the materials and process perspectives. High entropy alloys and high strength aluminium alloys have been identified as key materials development for L-PBF. Then, scanning strategies and multi-lasers applications for the process are also discussed. Other research trends and topics such as powder recycling, shape memory alloys and magnetic alloys are illustrated. The final part of this paper provides an outlook on the recent advancements while suggesting potential research topics for L-PBF.

尽管在用于金属增材制造（AM）的激光粉末床熔合（L-PBF）方面已取得了重大进展，但业界对该大规模制造技术的大规模采用仍然有限。本文介绍L-PBF的最新发展，并从材料和工艺角度进行讨论。高熵合金和高强度铝合金已被确定为L-PBF的关键材料开发。然后，还讨论了该过程的扫描策略和多激光应用程序。阐述了其他研究趋势和主题，例如粉末回收，形状记忆合金和磁性合金。本文的最后部分提供了对最新进展的展望，同时提出了L-PBF的潜在研究主题。