A novel high-entropy alloy with excellent damping property toward a large strain amplitude environment

Chen, Qiang1; Zhang, Hongling2; Zhou, Shucliang1,2; Cai, Yuntao2; Li, Xinggang3; Xu, Yi1,2

2019-09-25

10.1016/j.jallcom.2019.06.247

JOURNAL OF ALLOYS AND COMPOUNDS   影响因子和分区

0925-8388

1873-4669

A new Fe60Mn20Co5Cr15 high-entropy alloy with excellent damping performance was synthesized by mechanical alloying (MA) and spark plasma sintering (SPS). During SPS, the supersaturated solid solution produced in MA was transformed into a stable microstructure consisting of body-centered cubic (BCC) phase, face-centered cubic (FCC) phase and small amount of sigma phase. The effects of different annealing temperature on phase evolution, microstructure, mechanical properties and damping behavior were investigated. The results of compressive properties indicated a reduction in strength but an increase in plastic strain when the alloy was annealed at high temperature. Compared with the SPSed bulk, the damping properties were improved significantly by the annealing process, which was related to the number of defects and the morphology of magnetic domains. For the samples annealed at 900 degrees C, a maximum of internal friction (IF) Q(-1) = 0.076 was achieved and the corresponding strain amplitude was approximately 6x10(-4), overwhelming the conventional damping alloys. Besides, a high damping capability of the alloy can be achieved in a wider strain range, which means that it can act as a promising candidate toward a larger strain amplitude environment. (C) 2019 Elsevier B.V. All rights reserved.

High-entropy alloy Damping property Mechanical alloying Spark plasma sintering

SCI ; EI

英语

其他

National Key Project of Research and Development Program of China[2016YFB1100202]

Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering

Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering

WOS:000474567000056

ELSEVIER SCIENCE SA

20192607087745

Annealing ; Chromium alloys ; Cobalt alloys ; Damping ; Entropy ; Iron alloys ; Magnetic domains ; Manganese alloys ; Mechanical alloying ; Microstructure ; Morphology ; Spark plasma sintering

Metallurgy and Metallography:531 ; Heat Treatment Processes:537.1 ; Chromium and Alloys:543.1 ; Manganese and Alloys:543.2 ; Iron Alloys:545.2 ; Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals:549.3 ; Thermodynamics:641.1 ; Magnetism: Basic Concepts and Phenomena:701.2 ; Mechanics:931.1 ; Materials Science:951

MATERIALS SCIENCE

Web of Science

1.Southwest Jiaotong Univ, Sch Mat Sci & Engn, Chengdu 610031, Sichuan, Peoples R China
2.Southwest Jiaotong Univ, Key Lab Adv Mat Technol, Minist Educ, Chengdu 610031, Sichuan, Peoples R China
3.Southern Univ Sci & Technol, SUSTech Acad Adv Interdisciplinary Studies, Shenzhen 518055, Peoples R China

Chen, Qiang,Zhang, Hongling,Zhou, Shucliang,et al. A novel high-entropy alloy with excellent damping property toward a large strain amplitude environment[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2019,802:493-501.

Chen, Qiang,Zhang, Hongling,Zhou, Shucliang,Cai, Yuntao,Li, Xinggang,&Xu, Yi.(2019).A novel high-entropy alloy with excellent damping property toward a large strain amplitude environment.JOURNAL OF ALLOYS AND COMPOUNDS,802,493-501.

Chen, Qiang,et al."A novel high-entropy alloy with excellent damping property toward a large strain amplitude environment".JOURNAL OF ALLOYS AND COMPOUNDS 802(2019):493-501.