纳米氧化镍颗粒对通过 DED-LB 和 PBF-LB 加工的双相不锈钢的影响

IF 3.2 3区工程技术 Q2 ENGINEERING, INDUSTRIAL Cirp Annals-Manufacturing Technology Pub Date : 2024-01-01 DOI:10.1016/j.cirp.2024.04.020

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引用次数: 0

摘要

双相不锈钢（DSS）由铁素体和奥氏体的等相组成。然而，在基于激光的增材制造（AM）中原位形成这种双相微观结构仍然是一个具有挑战性的课题。添加纳米粒子是在 AM 中定制钢材微观结构的一种可行方法。因此，通过激光粉末床熔融（PBF-LB）和定向能沉积（DED-LB）制造了掺杂 0.5 wt.-% NiO 纳米粒子的 DSS。虽然在 PBF-LB 中对相组成没有影响，但在 DED-LB 中，与未改性粉末相比，添加的氧化镍纳米颗粒使奥氏体含量显著增加了 9%。

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Effect of NiO nanoparticles on duplex stainless steel processed via DED-LB and PBF-LB

Duplex stainless steels (DSS) are defined by their equal phase composition of ferrite and austenite. However, the in-situ formation of this duplex microstructure in laser-based additive manufacturing (AM) is still a challenging topic. Nanoparticle addition is a promising approach to tailor the microstructure of steels in AM. Therefore, DSS doped with 0.5 wt.-% NiO nanoparticles was fabricated by laser-based powder bed fusion (PBF-LB) and directed energy deposition (DED-LB). While having no impact on the phase composition in PBF-LB, the addition of NiO nanoparticles showed a significant increase in austenite content of 9% compared to the unmodified powder in DED-LB.

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来源期刊

Cirp Annals-Manufacturing Technology 工程技术-工程：工业

CiteScore

7.50

自引率

9.80%

发文量

137

审稿时长

13.5 months

期刊介绍： CIRP, The International Academy for Production Engineering, was founded in 1951 to promote, by scientific research, the development of all aspects of manufacturing technology covering the optimization, control and management of processes, machines and systems. This biannual ISI cited journal contains approximately 140 refereed technical and keynote papers. Subject areas covered include: Assembly, Cutting, Design, Electro-Physical and Chemical Processes, Forming, Abrasive processes, Surfaces, Machines, Production Systems and Organizations, Precision Engineering and Metrology, Life-Cycle Engineering, Microsystems Technology (MST), Nanotechnology.