Precipitation hardening of high entropy alloy CoCrFeMnNi containing titanium

被引：34

作者：

Eissmann, Nadine ^{[1
,2
]}

Muehle, Uwe ^{[1
,3
]}

Gaitzsch, Uwe ^{[2
]}

Walther, Gunnar ^{[2
]}

Weissgaerber, Thomas ^{[2
]}

Kieback, Bernd ^{[1
]}

机构：

[1] Tech Univ Dresden, Fac Mech Sci & Engn, Inst Mat Sci, D-01062 Dresden, Germany

[2] Fraunhofer Inst Mfg Technol & Adv Mat IFAM, Branch Lab Dresden, Winterbergstr 28, D-01277 Dresden, Germany

[3] Semicond Mfg Dresden GmbH, Knappsdorfer Str 12, D-01109 Dresden, Germany

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2021年 / 857卷

关键词：

High entropy alloys; Precipitation; Transmission electron microscopy (TEM); Scanning electron microscopy (SEM); TENSILE PROPERTIES; EVOLUTION; RECRYSTALLIZATION; STABILITY; BEHAVIOR; MO;

D O I：

10.1016/j.jallcom.2020.157610

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The effect of titanium addition beyond the solubility limit was investigated in order to proof the precipitation hardening possibility of the Cantor alloy CoCrFeMnNi. As high entropy alloys are currently in the focus of interest, this method is a highly suitable possibility to further improve their remarkably properties. After appropriate heat treatment consisting of homogenisation, solution and precipitation annealing a significant increase in hardness was detected. The high hardness was caused by nanometer sized precipitates, which were identified by TEM-analysis. (C) 2020 Elsevier B.V. All rights reserved.

引用

页数：8

共 33 条

[1]

[Anonymous], 2003, WERKSTOFFWISSENSCHAF

[2] Design of Novel Precipitate-Strengthened Al-Co-Cr-Fe-Nb-Ni High-Entropy Superalloys [J].

Antonov, Stoichko ;

Detrois, Martin ;

Tin, Sammy .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2018, 49A (01) :305-320

[3]

Burgel R., 2011, HDB HOCHTEMPERATUR W

[4] The formation of cellular precipitate and its effect on the tensile properties of a precipitation strengthened high entropy alloy [J].

Chang, Yao-Jen ;

Yeh, An-Chou .

MATERIALS CHEMISTRY AND PHYSICS, 2018, 210 :111-119

[5] The evolution of microstructures and high temperature properties of AlxCo1.5CrFeNi1.5Tiy high entropy alloys [J].

Chang, Yao-Jen ;

Yeh, An-Chou .

JOURNAL OF ALLOYS AND COMPOUNDS, 2015, 653 :379-385

[6] A multi-component AlCrFe2Ni2 alloy with excellent mechanical properties [J].

Dong, Yong ;

Gao, Xiaoxia ;

Lu, Yiping ;

Wang, Tongmin ;

Li, Tingju .

MATERIALS LETTERS, 2016, 169 :62-64

[7]

Ei<ss>mann N., 2018, EURO PM

[8] High-entropy alloy CoCrFeMnNi produced by powder metallurgy [J].

Eissmann, Nadine ;

Kloeden, Burghardt ;

Weissgaerber, Thomas ;

Kieback, Bernd .

POWDER METALLURGY, 2017, 60 (03) :184-197

[9] FAILURE OF AGED CU-AU THIN-FILMS BY KIRKENDALL POROSITY [J].

FEINSTEIN, LG ;

BINDELL, JB .

THIN SOLID FILMS, 1979, 62 (01) :37-47

[10] Face Centred Cubic Multi-Component Equiatomic Solid Solutions in the Au-Cu-Ni-Pd-Pt System [J].

Freudenberger, Jens ;

Rafaja, David ;

Geissler, David ;

Giebeler, Lars ;

Ullrich, Christiane ;

Kauffmann, Alexander ;

Heilmaier, Martin ;

Nielsch, Kornelius .

METALS, 2017, 7 (04)

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