期刊
APPLIED SURFACE SCIENCE
卷 572, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.apsusc.2021.151407
关键词
High entropy alloy; Magnetic field; Laser cladding; Directional array; First principles calculation
类别
资金
- National Natural Science Foundation of China [51975137, 51775127]
- Fundamental Research Funds for Province Universities [Hkdcx201904]
- Heilongjiang Provincial Natural Science Foundation of China [LH2020E120]
- China Postdoctoral Science Foundation [2018M641809]
This study synthesized a directional array TiN reinforced AlCoCrFeNiTi HEA coating using magnetic field-assisted laser cladding, and systematically investigated its wear resistance. The results showed that the high bonding strength between TiN and BCC enhanced the wear resistance of the coating.
Recent studies have shown that ceramic particles reinforced high entropy alloy (HEA) has attracted increased attention due to their excellent strength and wear resistance. In this work, the directional array TiN-reinforced AlCoCrFeNiTi HEA coating was synthesized via magnetic field-assisted laser cladding. Besides, the wear resistance of HEA coating was systematically investigated. The atomic structure, ideal adhesion work (Wad) and electronic structure of the interface between matrix and TiN were calculated by first principles method. The results show that the microstructures of in-situ TiN display a cross shape of the directional array, and a coherent interface in TiN (20 0)/(Ni, Co)Ti2 (511) and the high bonding strength between TiN and BCC improve the wear resistance of HEA coating.
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