Influence of powder oxidation on powder properties and formability in H13 hot-work steels processed by electron beam melting
作者机构：School of Metallurgical EngineeringXi'an University of Architecture and TechnologyXi'an 710055ShaanxiChina School of EngineeringZhejiang University City CollegeHangzhou 310015ZhejiangChina
出 版 物：《Journal of Iron and Steel Research(International)》 (钢铁研究学报（英文版）)
年 卷 期：2024年第31卷第4期
页 面：924-932页
核心收录：
学科分类：0806[工学-冶金工程] 08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）]
基 金：funded by the National Natural Science Foundation of China(Grant No.52104341) National KeyR&DProgram(GrantNos.2021YFB37019022 and 2021YFB3701903) Shaanxi Province Natural Science Basic Research Program(Grant Nos.2022JM-259 and 2022JQ-367) Project Funded by China Postdoctoral Science Foundation(Grant No.2021M702554)
主 题：Additive manufacturing Electron beam melting H13 steel powder-Powder oxidation
摘 要：The oxygen content of metal powder is decisive for the recyclability of *** 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 ***,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 *** majority of oxygen element was found in the oxide particles in the powder and the oxide flm on the powder surface,which did affect the flowability of the *** 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 *** increase in the oxygen content in the powder is not the decisive factor for the formability and defects of the printed *** 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.
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