Characterization of Nanocrystalline AlCoCrCuNiFeZn High Entropy Alloy Produced by Mechanical Alloying

被引：23

作者：

Babu, C. Sajith ^{[1
]}

Sivaprasad, K. ^{[1
]}

Muthupandi, V. ^{[1
]}

Szpunar, Jerzy. A. ^{[2
]}

机构：

[1] Natl Inst Technol, Dept Met & Mat Engn, Adv Mat Proc Lab, Tiruchirappalli 620015, Tamil Nadu, India

[2] Univ Saskatchewan, Dept Mech Engn, Saskatoon, SK S7N 5A9, Canada

来源：

INTERNATIONAL CONFERENCE ON ADVANCES IN MANUFACTURING AND MATERIALS ENGINEERING (ICAMME 2014) | 2014年 / 5卷

关键词：

High entropy alloys; Mechanical alloying; Nanoindentation; Thermal Analysis; COMPRESSIVE PROPERTIES; SOLID-SOLUTION; MICROSTRUCTURE; BEHAVIOR; ELEMENTS; MO;

D O I：

10.1016/j.mspro.2014.07.392

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The equiatomic multicomponent nanocrystalline AlCoCrCuNiFeZn heptanary high entropy alloy (HEA) solid solution was produced by mechanical alloying (MA) and characterized by XRD, SEM, DSC and TGA. The 30 hr. mechanically alloyed AlCoCrCuNiFeZn HEA is mainly composed of BCC solid solution shows better chemical homogeneity with crystallite size of about 15nm in as milled condition. It retains its nanostructure even at a temperature of 850 degrees C and it is found to be thermally stable. The 30 hr milled AlCoCrCuNiFeZn heptanary alloy powder was consolidated through hot compaction at a temperature of 850 degrees C for 2 hr. From Nanoindentation measurements on consolidated samples, hardness and young's modulus values are found to be 7.773 GPa and 152.4 GPa respectively. (C) 2014 Elsevier Ltd.

引用

页码：1020 / 1026

页数：7

共 22 条

[1] Alloying behavior of binary to octonary alloys based on Cu-Ni-Al-Co-Cr-Fe-Ti-Mo during mechanical alloying [J].

Chen, Yu-Liang ;

Hu, Ya-Huei ;

Tsai, Che-Wei ;

Hsieh, Cheng-An ;

Kao, Su-Wen ;

Yeh, Jien-Wei ;

Chin, Tsung-Shune ;

Chen, Swe-Kai .

JOURNAL OF ALLOYS AND COMPOUNDS, 2009, 477 (1-2) :696-705

[2] Multi-principal-element alloys with improved oxidation and wear resistance for thermal spray coating [J].

Huang, PK ;

Yeh, JW ;

Shun, TT ;

Chen, SK .

ADVANCED ENGINEERING MATERIALS, 2004, 6 (1-2) :74-78

[3] Phase Evolution and Thermal Analysis of Nanocrystalline AlCrCuFeNiZn High Entropy Alloy Produced by Mechanical Alloying [J].

Koundinya, N. T. B. N. ;

Babu, C. Sajith ;

Sivaprasad, K. ;

Susila, P. ;

Babu, N. Kishore ;

Baburao, J. .

JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE, 2013, 22 (10) :3077-3084

[4] Effect of the aluminium content of AlxCrFe1.5MnNi0.5 high-entropy alloys on. the corrosion behaviour in aqueous environments [J].

Lee, C. P. ;

Chang, C. C. ;

Chen, Y. Y. ;

Yeh, J. W. ;

Shih, H. C. .

CORROSION SCIENCE, 2008, 50 (07) :2053-2060

[5] Effect of alloying elements on microstructure and properties of multiprincipal elements high-entropy alloys [J].

Li, C. ;

Li, J. C. ;

Zhao, M. ;

Jiang, Q. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2009, 475 (1-2) :752-757

[6]

Ranganathan S, 2003, CURR SCI INDIA, V85, P1404

[7]

Sajith babu C., 2014, PROCEDIA MA IN PRESS

[8] The effects of secondary elemental Mo or Ti addition in Al0.3CoCrFeNi high-entropy alloy on age hardening at 700°C [J].

Shun, Tao-Tsung ;

Hung, Cheng-Hsin ;

Lee, Che-Fu .

JOURNAL OF ALLOYS AND COMPOUNDS, 2010, 495 (01) :55-58

[9] THE ENHANCEMENT OF SOLID SOLUBILITY LIMITS OF ALCO INTERMETALLIC COMPOUND BY HIGH-ENERGY BALL MILLING [J].

SUI, HX ;

ZHU, M ;

QI, M ;

LI, GB ;

YANG, DZ .

JOURNAL OF APPLIED PHYSICS, 1992, 71 (06) :2945-2949

[10]

Suryanarayana C., 1999, NONEQUILIBRIUM PROCE

← 1 2 3 →