Preprint Article Version 1 This version is not peer-reviewed

Relationship between the Size and Inner Structure of AM Powder Particles

Version 1 : Received: 16 November 2018 / Approved: 19 November 2018 / Online: 19 November 2018 (10:56:45 CET)

How to cite: Opatová, K.; Zetková, I.; Kučerová, L. Relationship between the Size and Inner Structure of AM Powder Particles. Preprints 2018, 2018110453 (doi: 10.20944/preprints201811.0453.v1). Opatová, K.; Zetková, I.; Kučerová, L. Relationship between the Size and Inner Structure of AM Powder Particles. Preprints 2018, 2018110453 (doi: 10.20944/preprints201811.0453.v1).

Abstract

Additive manufacturing (AM) is today’s buzzword—and not only in commercial production. One of the AM techniques produces 3D objects with complex geometry using a laser beam. The relationship between the morphology of individual powder particles and the printing process has not been adequately documented yet. This article presents a detailed microscopic analysis of virgin and reused powder particles of maraging steel. Metallographic observation was performed using a scanning electron microscope (SEM). Detailed analyses of individual particles were carried out using SEM with a focused ion beam (FIB) milling capability. Analyses of elemental distribution and phase distribution were performed using EDS and EBSD, respectively. The findings have led to a better understanding and prediction of defects in additive-manufactured products.

Subject Areas

additive manufacturing; FIB; EBSD; EDS; maraging steel

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