Assessment Possibility of Controlling Structure Formation by Changing the Technological Parameters LPBF Process

I. V. Shakirov; Шакиров И. В.; A. V. Olisov; Олисов А. В.; P. A. Kuznetsov; Кузнецов П. А.; A. S. Zhukov; Жуков А. С.

doi:10.31857/S0015323022601830

Assessment Possibility of Controlling Structure Formation by Changing the Technological Parameters LPBF Process

作者: Shakirov I.V.¹, Olisov A.V.², Kuznetsov P.A.¹, Zhukov A.S.¹
隶属关系:
1. NRC “Kurchatov Institute” – CRISM “Prometey”
2. Tomsk State University
期: 卷 124, 编号 12 (2023)
页面: 1271-1278
栏目: СТРУКТУРА, ФАЗОВЫЕ ПРЕВРАЩЕНИЯ И ДИФФУЗИЯ
URL: https://rjmseer.com/0015-3230/article/view/663067
DOI: https://doi.org/10.31857/S0015323022601830
EDN: https://elibrary.ru/HLXZAL
ID: 663067

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Abstract

—In this paper, the possibility of creating a controlled structure by varying the parameters of laser powder bed fusion (LPBF) process on the example of austenitic stainless steels is studied. Based on the study of the structure of experimental samples, the influence of a combination of various technological parameters that make up the scanning strategy when preparing a 3D-model for the LPBF process on the processes of structure formation is shown. The possibility of forming elements with different structures within one part during its manufacture by the LPBF method by changing the technological parameters of the process that make up the scanning strategy is shown. It is noted that the use of 3D-models identical in the geometry formed, but different in the strategy of scanning with a laser beam directly in the process of laser fusion, leads to the formation of a fundamentally different structure of the created sample, since the formation of the microstructure is strongly influenced by the conditions of metal crystallization, which directly depend on the scanning strategy.

关键词

additive manufacturing, austenitic stainless steel, structure formation, 3D-model, laser powder bed fusion (LPBF)

参考

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