Microstructure, Mechanical Properties, and Sliding Wear Behavior of Oxide-Dispersion-Strengthened FeMnNi Alloy Fabricated by Spark Plasma Sintering

Yang, Lu1; Zhao, Cancan1; Zhu, Weiwei2,3; Cheng, Zhuo1; Wei, Pengbo1,4; Ren, Fuzeng1

2020-04-19

10.1007/s11661-020-05748-7

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE   影响因子和分区

1073-5623

1543-1940

The face-centered-cubic (fcc) CoCrFeMnNi high-entropy alloy suffers from low strength and wear resistance at ambient temperature. Herein, we developed a strategy to overcome the strength/ductility trade-off and simultaneously increase the wear resistance via the in situ formation of uniformly dispersed Mn3O4 nanoparticles in an ultrafine-grained fcc FeMnNi matrix. The obtained equiatomic FeMnNi alloy exhibited a high yield strength of up to 912 MPa and an elongation of 19 pct. Grain boundary and oxide-dispersion-strengthened were found to be the main strengthening mechanisms. Ball-on-disk wear tests showed that the FeMnNi alloy had low wear rates in the order of 10(-4)-10(-5) mm(3)/(N m) upon sliding against an alumina ball, and the wear mechanism changed from abrasive wear to oxidation and fatigue wear at high loads and sliding velocities. The presence of Mn3O4 nanoparticles hindered the severe plastic flow of the fcc matrix during sliding. The excellent combination of strength, ductility, and tribological performance of the present alloy renders it as a promising candidate for structural applications.

SCI ; EI

英语

第一 ; 通讯

Guangdong Innovative & Entrepreneurial Research Team Program[2016ZT06C279]

Materials Science ; Metallurgy & Metallurgical Engineering

Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering

WOS:000528126900002

SPRINGER

20201708553948

Aluminum oxide ; Iron alloys ; Wear resistance ; Grain boundaries ; Tribology ; Wear of materials ; Manganese alloys ; Nanoparticles ; Economic and social effects ; Alumina ; Chromium alloys ; Cobalt alloys ; Dispersions ; Manganese oxide

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 ; Nanotechnology:761 ; Chemical Products Generally:804 ; Inorganic Compounds:804.2 ; Classical Physics; Quantum Theory; Relativity:931 ; Physical Properties of Gases, Liquids and Solids:931.2 ; Solid State Physics:933 ; Materials Science:951 ; Social Sciences:971

MATERIALS SCIENCE

Web of Science

1.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Guangdong, Peoples R China
2.Univ Macau, Fac Sci & Technol, Inst Appl Phys & Mat Engn, Macau, Peoples R China
3.Univ Macau, Fac Sci & Technol, Dept Electromech Engn, Macau, Peoples R China
4.Hong Kong Univ Sci & Technol, Dept Mech & Aerosp Engn, Clear Water Bay, Kowloon, Hong Kong, Peoples R China

Yang, Lu,Zhao, Cancan,Zhu, Weiwei,et al. Microstructure, Mechanical Properties, and Sliding Wear Behavior of Oxide-Dispersion-Strengthened FeMnNi Alloy Fabricated by Spark Plasma Sintering[J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,2020,51(6):2796-2810.

Yang, Lu,Zhao, Cancan,Zhu, Weiwei,Cheng, Zhuo,Wei, Pengbo,&Ren, Fuzeng.(2020).Microstructure, Mechanical Properties, and Sliding Wear Behavior of Oxide-Dispersion-Strengthened FeMnNi Alloy Fabricated by Spark Plasma Sintering.METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,51(6),2796-2810.

Yang, Lu,et al."Microstructure, Mechanical Properties, and Sliding Wear Behavior of Oxide-Dispersion-Strengthened FeMnNi Alloy Fabricated by Spark Plasma Sintering".METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE 51.6(2020):2796-2810.