Compositive role of TiB2 in microstructure optimization and wear-resistant improvement of selective-laser-melted TiB2p/CrCoFeNiMn high-entropy composite
Original Reports|更新时间:2026-08-19
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Compositive role of TiB2 in microstructure optimization and wear-resistant improvement of selective-laser-melted TiB2p/CrCoFeNiMn high-entropy composite
Materials Research LettersVol. 11, Issue 11, Pages: 964-972(2023)
作者机构:
1. a School of Physical Science and Technology Northwestern Polytechnical University
2. b State Key Laboratory of Solidification Processing Northwestern Polytechnical University
3. c School of Aeronautics Northwestern Polytechnical University
Zhao Chen, Xiaoli Wen, Weili Wang, et al. Compositive role of TiB2 in microstructure optimization and wear-resistant improvement of selective-laser-melted TiB2p/CrCoFeNiMn high-entropy composite[J]. Materials Research Letters, 2023, 11(11): 964-972.
DOI:
Zhao Chen, Xiaoli Wen, Weili Wang, et al. Compositive role of TiB2 in microstructure optimization and wear-resistant improvement of selective-laser-melted TiB2p/CrCoFeNiMn high-entropy composite[J]. Materials Research Letters, 2023, 11(11): 964-972.DOI: 10.1080/21663831.2023.2272805.
Compositive role of TiB2 in microstructure optimization and wear-resistant improvement of selective-laser-melted TiB2p/CrCoFeNiMn high-entropy composite
/CoCrFeNiMn high-entropy composite (HEC) were manufactured by Selective laser melting. For the CoCrFeNiMn
a coarse epitaxial columnar microstructure with strong crystallographic textures was generated. While in the TiB2
p
/CoCrFeNiMn
TiB
2
particles are distributed in the significantly refined dendrites and nearly equiaxial grains
and phase transformation occurs to form σ phase. TiB
2
and σ phase construct a strong interface relationship with the matrix. TiB2
p
/CoCrFeNiMn HEC has extremely high microhardness (329 ± 2 HV) and excellent wear resistance (coefficients of friction 0.31 ± 0.02). The wear mechanism of the HEC was studied refer to the microstructure
composition and hardness.
IMPACT STATEMENT
TiB
2
-reinforced CoCrFeNiMn-based high-entropy composite is successfully fabricated by Selective laser melting
which exhibits exceptional hardness and the best wear resistance.
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Related Institution
a State Key Laboratory of Metal Matrix Composites School of Materials Science and Engineering Shanghai Jiao Tong University
b College of Furnishings and Industrial Design and Co-Innovation Center of Efficient Processing and Utilization of Forest Resources Nanjing Forestry University
a State Key Laboratory of Solidification Processing Northwestern Polytechnical University Xi’an Shaanxi People’s Republic of China
b Chongqing Innovation Center Northwestern Polytechnical University
a State Key Laboratory of Solidification Processing Northwestern Polytechnical University Xi’an