Impact of CrSiTi and NiSi on the Thermodynamics, Microstructure, and Properties of AlCoCuFe-Based High-Entropy Alloys

doi:10.1007/s11665-016-2000-0

CORC > 兰州理工大学 > 兰州理工大学

	Impact of CrSiTi and NiSi on the Thermodynamics, Microstructure, and Properties of AlCoCuFe-Based High-Entropy Alloys
	Wang, Xiao-Rong 1,2; Wang, Zhao-Qin 3; Lin, Tie-Song 1; He, Peng 1; Sekulic, Dusan P.1,4
刊名	JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
	2016-05
卷号	25 期号:5 页码:2053-2064
关键词	compressive properties high-entropy alloy microstructure mixing enthalpy matrix thermodynamics
ISSN号	1059-9495
DOI	10.1007/s11665-016-2000-0
英文摘要	Aiming to solve the problem of spontaneous combustion on titanium via electrospark deposition (ESD), two AlCoCuFe-based high-entropy alloys (HEAs), AlCoCuFe-x (x = CrSiTi, NiSi), were produced by vacuum arc melting as electrodes in ESD process. The thermodynamic analysis of AlCoCuFe-based HEAs were carried out using the concept of mixing enthalpy matrix and a powerful thermodynamic calculation toolbox (HEA-Thermo-Calcu). The microstructure and mechanical properties of the two alloys were investigated. The AlCoCuFeCrSiTi alloy contains a body-centered cubic (BCC) phase and a face-centered cubic (FCC) phase. The AlCoCuFeNiSi alloy is composed of two BCC phases and an FCC phase. Addition of CrSiTi and NiSi to AlCoCuFe-based alloys makes the enthalpy of mixing to be sizably more negative than for the other AlCoCuFe-based HEAs. Notwithstanding the fact that the thermodynamic parameters do not agree with Yang's proposition, the two alloys form simple solid solutions. The electronegativity difference (Delta chi) favors a formation of the solid solution when Delta chi a parts per thousand currency sign 14.2. The hardness of AlCoCuFe-x (x = CrSiTi, NiSi) alloys reaches 935 HV and 688 HV, respectively. The yield strength, fracture strength, and ultimate strain of AlCoCuFeNiSi are larger, i.e., 29, 30, and 45%, respectively, than those of the AlCoCuFeCrSiTi alloy.
资助项目	Youth Science and Technology Fund of Gansu Province[148RJYA010]
WOS研究方向	Materials Science
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000374577300042
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/33715]
专题	兰州理工大学省部共建有色金属先进加工与再利用国家重点实验室
通讯作者	Wang, Xiao-Rong; He, Peng
作者单位	1.Harbin Inst Technol, State Key Lab Adv Welding & Joining, Harbin 150001, Peoples R China 2.Lanzhou Jiaotong Univ, Sch Mechatron Engn, Lanzhou 730010, Peoples R China 3.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China 4.Univ Kentucky, Coll Engn, Lexington, KY 40506 USA
推荐引用方式 GB/T 7714	Wang, Xiao-Rong,Wang, Zhao-Qin,Lin, Tie-Song,et al. Impact of CrSiTi and NiSi on the Thermodynamics, Microstructure, and Properties of AlCoCuFe-Based High-Entropy Alloys[J]. JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,2016,25(5):2053-2064.
APA	Wang, Xiao-Rong,Wang, Zhao-Qin,Lin, Tie-Song,He, Peng,&Sekulic, Dusan P..(2016).Impact of CrSiTi and NiSi on the Thermodynamics, Microstructure, and Properties of AlCoCuFe-Based High-Entropy Alloys.JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,25(5),2053-2064.
MLA	Wang, Xiao-Rong,et al."Impact of CrSiTi and NiSi on the Thermodynamics, Microstructure, and Properties of AlCoCuFe-Based High-Entropy Alloys".JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE 25.5(2016):2053-2064.