Characterization of Powder Metallurgy High-Entropy Alloys Prepared by Spark Plasma Sintering

被引：2

作者：

Gouvea, Larissa ^{[1
]}

Moravcik, Igor ^{[1
]}

Cizek, Jan ^{[2
]}

Krajnakova, Petra ^{[1
]}

Jan, Vit ^{[1
]}

Dlouhy, Ivo ^{[1
]}

机构：

[1] Brno Univ Technol, Inst Mat Sci & Engn, Tech 2896 2, Brno 61669, Czech Republic

[2] Czech Acad Sci, Inst Plasma Phys, Slovankou 1782-3, Prague 18200, Czech Republic

来源：

THERMEC 2018: 10TH INTERNATIONAL CONFERENCE ON PROCESSING AND MANUFACTURING OF ADVANCED MATERIALS | 2018年 / 941卷

关键词：

Multi-principal element alloys; Mechanical Alloying; Spark Plasma Sintering; Mechanical Characterization; MICROSTRUCTURE; ELEMENTS; HEAT;

D O I：

10.4028/www.scientific.net/MSF.941.1053

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In the present work, the High-Entropy Alloys Al0.2Co1.5CrFeNi1.5Ti, Al1.3Co1.4Cr2.0FeNi4.0Ti4.0 and Al6.0Co1.2Cr2.5FeNi3.5Ti6.0 were produced by Mechanical Alloying and subsequent Spark Plasma Sintering processes to obtain properly densified bulks. The characterization of the materials was accomplished through X-Ray Diffraction, Scanning Electron Microscopy, microhardness and nanoindentation tests to identify and analyze the acquired microstructures' features, phases formed, morphology and size of the grains and its average hardness. The results indicate that it was possible to obtain alloys presenting high values of hardness and multi-phase microstructures. The effect of the multiple phases on the microstructures was discussed in terms of its influence on the mechanical properties. A satisfying densification level of the materials was achieved with the selected parameters.

引用

页码：1053 / 1058

页数：6

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