Effect of powders on microstructure and performance of inconel 718 alloy prepared by SPS

In this paper, 15–53 μ m spherical powders obtained by plasma rotating electrode (PREP) and argon atomization (VIGA) were used to prepare the Inconel 718 alloy through spark plasma sintering(SPS), and then the sintered alloy was treated by solid solution and aging heat treatment. The effect of diffe...

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Bibliographic Details
Published inMaterials research express Vol. 9; no. 9; pp. 96501 - 96511
Main Authors Qinggong, Jia, Qingxiang, Wang, Shuhua, Liang
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.09.2022
Subjects
Aging (metallurgy)
Argon
Atomizing
Densification
Heat treatment
Inconel 718 alloy
Microstructure
Nickel base alloys
Rotating plasmas
Sintering (powder metallurgy)
Solid solutions
Spark plasma sintering
Spherical plasmas
Spherical powders
Superalloys
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Summary:In this paper, 15–53 μ m spherical powders obtained by plasma rotating electrode (PREP) and argon atomization (VIGA) were used to prepare the Inconel 718 alloy through spark plasma sintering(SPS), and then the sintered alloy was treated by solid solution and aging heat treatment. The effect of different powders on the microstructure and properties of Inconel 718 alloy as sintered and heat treated was studied. The results show that high density Inconel 718 alloy can be obtained by SPS technology, and the original particle boundary of powder can be reduced, and the original particle boundary of PREP is less. According to the densification process of spherical powder during SPS process, the change law of powder microstructure in rapid sintering is established.
Bibliography:MRX-126149.R1
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ISSN:2053-1591
2053-1591
DOI:10.1088/2053-1591/ac8c1e