Issues »  Volume 47, Issue 4

On the Possibility to Manufacture Inconel-718 Alloy Products with Metal Injection Moulding Approach: Microstructure-Evolution Features and Main Characteristics

O. M. Ivasishin$^{1}$, D. G. Savvakin$^{1}$, O. D. Rud$^{1}$, D. V. Oryshych$^{1}$, I. M. Kirian$^{1}$, A. M. Lakhnik$^{1}$, V. I. Bondarchuk$^{1}$, B. Kronowetter$^{2}$, Yu. I. Torba$^{3}$, V. G. Manzhos$^{3}$

$^{1}$G. V. Kurdyumov Institute for Metal Physics, N.A.S. of Ukraine, 36 Academician Vernadsky Blvd., UA-03142 Kyiv, Ukraine
$^{2}$KRONOWETTER Kunststoff- und Metalltechnik GmbH, Gewerbestrasse 32, Mitterfelden, D-83404 Germany
$^{3}$“Ivchenko-Progress” State Enterprise”, 2 Ivanova Str., UA-69068 Zaporizhzhia, Ukraine

Received: 02.04.2025; final version - 03.04.2025. Download: PDF

The main features of manufacturing the Inconel-718 alloy products using mixture of Inconel-718 powder and an organic binder are studied. Using die-compacted and sintered feedstock, evolutions of microstructure and characteristics are studied during debinding, powder sintering and heat-treatment processing stages of metal injection moulding (MIM) manufacturing technique. The conditions and parameters ensuring formation of suitable microstructure and promising mechanical characteristics of final Inconel-718 material are determined. Nearly dense sintered material is formed on sintering, while post-sintering heat treatment ensures achievement of desirable phase composition. Hardness of 364 HV, tensile strength of about 900 MPa, and up to 17% elongation are achieved; such characteristics are promising to recommend MIM approach for manufacturing net-shape Inconel-718 alloy products.

Key words: metal injection moulding (MIM), Inconel-718, powder, binder, sintering, heat treatment, microstructure, mechanical properties.

URL: https://mfint.imp.kiev.ua/en/abstract/v47/i04/0391.html

DOI: https://doi.org/10.15407/mfint.47.04.0391

PACS: 61.43.Gt, 61.72.Ff, 81.05.Bx, 81.20.Ev, 81.20.Hy, 81.40.Jj, 81.70.Jb

Citation: O. M. Ivasishin, D. G. Savvakin, O. D. Rud, D. V. Oryshych, I. M. Kirian, A. M. Lakhnik, V. I. Bondarchuk, B. Kronowetter, Yu. I. Torba, and V. G. Manzhos, On the Possibility to Manufacture Inconel-718 Alloy Products with Metal Injection Moulding Approach: Microstructure-Evolution Features and Main Characteristics, Metallofiz. Noveishie Tekhnol., 47, No. 4: 391—404 (2025)

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