CoCrFeNiMo High Entropy Alloy Produced by Solid State Processing

Ioana Csáki; Sigrún Nanna Karlsdottir; Steluța Serghiuță; Gabriela Popescu; Mihai Buzatu; Laura Elena Geambazu; Ciprian Alexandru Manea

doi:10.4028/www.scientific.net/KEM.750.15

Paper Titles

Preface, Committees

Improvement of Structural Characteristics for CuZn Alloy through Heat Treatments
p.3

Pressure Influence on the AlCrFeNiMn/Graphite High Entropy Composite Microhardness
p.9

CoCrFeNiMo High Entropy Alloy Produced by Solid State Processing
p.15

Structural Aspects Revealed by X-Ray Diffraction for Aluminum Alloys 2024 Type
p.20

Effect of TIG Welding and Manual Metal Arc Welding on Mechanical Properties of AISI 304 and 316L Austenitic Stainless Steel Sheets
p.26

Study on Wear Resistance FeNiCrMnAl High Entropy Alloy - Mechanical Properties
p.34

Studies and Research on the Influence of Carbon and Chromium Content Aimed at Obtaining Superior Mechanical Characteristics of 16CD4 Steel Used in the Automobile Industry
p.39

Determination of Heat Input in Tungsten Inert Gas and Laser Welding of Type Optim 960 QC Structural Steel Using Adams’ Equation for 2-D Heat Distribution
p.45

HomeKey Engineering MaterialsKey Engineering Materials Vol. 750CoCrFeNiMo High Entropy Alloy Produced by Solid...

CoCrFeNiMo High Entropy Alloy Produced by Solid State Processing

Abstract:

Mechanical alloying (MA) is a high-energy ball milling process results in the obtaining of simple and stable microstructures having increased homogeneity compared to other non-equilibrium synthesis methods. The aim of this paper was to develop a high entropy alloy with an improved hardness value suitable for coating turbine blades working in geothermal steam. CoCrFeNiMo high entropy alloy was processed in solid state, using mechanical alloying. After 40h milling time in a planetary ball mill the alloyed sample was consolidated using spark plasma sintering process. The samples obtained were investigated with the aid of optical and electron microscope, X ray diffraction and the hardness value was determined. The results obtained revealed that the powder was completely alloyed after 40 hour milling and the mixture between BCC and FCC phases resulted in 34% improved hardness value in comparison with a stainless steel usually used for turbine blades working in geothermal environment.

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Periodical:

Key Engineering Materials (Volume 750)

Pages:

15-19

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.750.15

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Online since:

August 2017

Authors:

Ioana Csáki*, Sigrún Nanna Karlsdottir, Steluța Serghiuță, Gabriela Popescu, Mihai Buzatu, Laura Elena Geambazu, Ciprian Alexandru Manea

Keywords:

Hardness, High Entropy Alloys, Mechanical Alloying, Solid Solution

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