Influence of powder oxidation on powder properties and formability in H13 hot-work steels processed by electron beam melting

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外文摘要：The oxygen content of metal powder is decisive for the recyclability of powder.The research on the effect of oxygen content on powder properties and material formability has practical significance for economical production with additive manufacturing while preventing the waste of resources.Here,we deliberately oxidized the powder by baking at high temperature to increase the oxygen content in the powder and gave the calculation method of the oxygen content in the powder oxidation film.The majority of oxygen element was found in the oxide particles in the powder and the oxide film on the powder surface,which did affect the flowability of the powder.It is worth noting that the increase in the oxygen content does not change the phase of H13 steel,but it can promote the molten pool flow and obtain a smoother surface.The increase in the oxygen content in the powder is not the decisive factor for the formability and defects of the printed samples.It is the combined effect of the powder deformation,the increase in the oxygen content,and the impurity pollution after repeated use,which leads to the limitation of repeated utilization of the powder.

外文关键词：

Additive manufacturingElectron beam meltingH13 steel powderPowder oxidation

作者：

Wei Liu、Yan Wang、Li-xiong Han、Ying-kang Wei、Hui-ping Tang、Shi-feng Liu

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作者单位：

School of Metallurgical Engineering,Xi'an University of Architecture and Technology,Xi'an 710055,Shaanxi,China

School of Engineering,Zhejiang University City College,Hangzhou 310015,Zhejiang,China

基金：

国家自然科学基金国家重点研发计划国家重点研发计划Shaanxi Province Natural Science Basic Research ProgramShaanxi Province Natural Science Basic Research Program中国博士后科学基金

项目编号：

521043412021YFB37019022021YFB37019032022JM-2592022JQ-3672021M702554

出版年：

2024

DOI：

10.1007/s42243-023-01049-6

钢铁研究学报(英文版)

钢铁研究总院

钢铁研究学报(英文版)

CSTPCD

影响因子：0.584

ISSN：1006-706X

年,卷(期)：2024.31(4)