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Research progress in tribological properties of high entropy alloys
Yuan YU, Zhuhui QIAO, Haibo REN, Weimin LIU
Journal of Materials Engineering, 2022, 50(3): 1-17.   DOI: 10.11868/j.issn.1001-4381.2021.000823

Treatment Materials composition Treatment process Tested condition Tribological result Ref
Heattreatment AlCoCrFe As-cast Rotating, 100 N, 200 r/min, 60 min COF: 0.59, WL: 0.41 mg/mm2 [84]
NiTi0.5 Annealed [HT 800 ℃] COF: 0.52, WL: 0.16 mg/mm2
AlCoCrFe Heattreated Rotating, Si3N4 ball, 5N, 0.19 m/s [HT 700 ℃] COF: 0.52, WR: 1.64×10-4 mm3/(Nm) [85]
NiTi0.8 [HT 900 ℃] COF: 0.60, WR: 1.96×10-4 mm3/(Nm)
[HT 1200 ℃] COF: 0.69, WR: 6.93×10-4 mm3/(Nm)
MoFeCrTi Annealed at900℃ Reciprocating [HT 6 h] WL: 0.92 mm3 [86]
WAlNb3 GCr15 ball, 50 N, 15 min [HT 8 h] WL: 0.74 mm3
[HT 10 h] WL: 0.63 mm3
Thermochemical treatment (nitriding, carburizing, boronizingand sulfidizing) Ni45
(CoCrFe)40
(AlTi)15		 As-cast Rotating, Si3N4 ball, 10 N, 0.084 m/s COF: 20 ℃ 0.32, 500 ℃ 0.21; WR: 25 ℃ 2.65×10-4 mm3/(Nm), 500 ℃ 2.69×10-4 mm3/(Nm) [87]
Nitrided COF: 20 ℃ 0.20, 500 ℃ 0.13; WR: 25 ℃ 0.82×10-4 mm3/(Nm), 500 ℃ 0.53×10-4 mm3/(Nm)
CoCrFeNi As-cast Nano-scratch measurement WRC: 0.82×1011 Pa [88]
Carburized WRC: 1.35×1011 Pa
Al0.1CoCr As-cast Reciprocating, Si3N4 ball, 5 N, 0.2 m/s COF: steady, WR: 1.84×10-4 mm3/(Nm)
FeNi Boronized [Treated 2 h] COF: steady, WR: 1.05×10-4 mm3/(Nm)
[Treated 8 h] COF: increasing tendency, WR: 0.51×10-4 mm3/(Nm)
CoCrFe Coated GCr15 ball, 10 N, 0.2 m/s, 60 min COF: 0.47-0.61, WL: 15.13 mg [90]
MoNi Sulfurized COF: 0.15, WL: 4.24 mg
Surface hardeningand surfaceplastic deformation strengthening NiCrCoV As-cladded Rotating, W18 COF: 0.30, WL: 1.71 mg [91]
Ti0.5 Remelted Cr4V steel, 200 N, 0.42 m/s, 30 min [Treated 1 kW] COF: 0.50, WL: 0.79 mg
[Treated 2 kW] COF: 0.50, WL: 1.10 mg
Al0.5CoCr As-cladded Ball-on-disc WL: 13.01 mg [92]
FeMnNi GCr15 ball
Ultrasonic impacted 600 N, 500 r/min, 20 min WL: 11.50 mg
CoCrFeNi As-cast Ball-and-disk, GCr15 balls COF: 0.60, WR: 2.78×10-4 mm3/(Nm) [93]
Mo0.2 HCPEB [5 pulses] COF : 0.56, WR: 6.07×10-4 mm3/(Nm)
[25 pulses] COF: 0.33, WR: 1.18×10-4 mm3/(Nm)
CrMnFeCoNi Untreated Reciprocating, Al2O3 ball, 10 N, 0.2 m/min COF: 0.60, WR: 0.86×10-4 mm3/(Nm) [94]
Lasershock peened [Energy 2 J] COF: 0.59, WR: 0.64×10-4 mm3/(Nm)
[Energy 6 J] COF: 0.39, WR: 0.32×10-4 mm3/(Nm)
Table 3 Effects of heat treatment and surface engineering techniques on tribological properties of high entropy alloys
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