Comparison of characteristics of VZHL718 alloy metal powder compositions produced by prep and viga methods after selective laser melting

IF 0.8 4区材料科学 Q4 METALLURGY & METALLURGICAL ENGINEERING Metallurgist Pub Date : 2024-08-20 DOI:10.1007/s11015-024-01757-8

A E. Knyazev, P. G. Min

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Abstract

In this work four metal powder compositions of VZL718 (IN718) alloy are produced, one by vacuum induction melting and gas atomization (VIGA) technology and three by plasma melting and rotating billet centrifugal atomization (PREP) technology. Their particle size distributions, distribution parameters, technological properties, moisture content and gas impurity content of VIGA and PREP initial metal powder compositions are investigated. The differences between VIGA metal powder compositions and PREP metal powder compositions are shown and analyzed, and the differences are explained. Four selective laser melting processes are conducted using the VIGA and PREP metal powder compositions investigated. Particle size distributions, distribution parameters and process characteristics of VIGA metal powder compositions and PREP metal powder compositions after a single application in a selective laser melting process are investigated, and the differences between changes in characteristics and particle size distributions of VIGA and PREP metal powder compositions are revealed. The reasons for the changes identified in VIGA metal powder compositions and PREP metal powder compositions after selective laser melting and the relationships with initial metal powder composition characteristics are explained. Derivations and conclusions about further possibility of reuse of VIGA and PREP metal powder compositions after selective laser melting are made.

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比较选择性激光熔化后采用预处理法和维加法生产的 VZHL718 合金金属粉末成分的特性

本研究采用真空感应熔化和气体雾化（VIGA）技术制备了四种 VZL718（IN718）合金金属粉末成分，采用等离子熔化和旋转坯料离心雾化（PREP）技术制备了三种金属粉末成分。研究了 VIGA 和 PREP 初始金属粉末成分的粒度分布、分布参数、工艺性能、水分含量和气体杂质含量。显示并分析了 VIGA 金属粉末成分与 PREP 金属粉末成分之间的差异，并解释了这些差异。使用所研究的 VIGA 和 PREP 金属粉末成分进行了四次选择性激光熔化过程。研究了 VIGA 金属粉末组合物和 PREP 金属粉末组合物在选择性激光熔化工艺中单次使用后的粒度分布、分布参数和工艺特性，并揭示了 VIGA 和 PREP 金属粉末组合物的特性变化和粒度分布之间的差异。解释了选择性激光熔化后 VIGA 金属粉末成分和 PREP 金属粉末成分发生变化的原因，以及与初始金属粉末成分特征的关系。对选择性激光熔化后 VIGA 和 PREP 金属粉末成分的进一步再利用可能性进行了推导并得出了结论。

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来源期刊

Metallurgist 工程技术-冶金工程

CiteScore

1.50

自引率

44.40%

发文量

151

审稿时长

4-8 weeks

期刊介绍： Metallurgist is the leading Russian journal in metallurgy. Publication started in 1956. Basic topics covered include: State of the art and development of enterprises in ferrous and nonferrous metallurgy and mining; Metallurgy of ferrous, nonferrous, rare, and precious metals; Metallurgical equipment; Automation and control; Protection of labor; Protection of the environment; Resources and energy saving; Quality and certification; History of metallurgy; Inventions (patents).