Microstructure and Tribological Properties of Fe-Based Composite Coatings Prepared by High-Velocity Arc Spraying

Liu, Jitao; Lin, Junjie; Kang, Min; Ndumia, Joseph Ndiithi; Huang, Fang

doi:10.1007/s11666-022-01338-8

Cited by 9 publications

(3 citation statements)

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“…The coating primarily consists of α-Fe, Fe-Cr, Ni-Cr-Fe, Al 2 O 3 , and (Fe, Ni) solid solution. Relevant studies have shown that Cr is an element that promotes the formation of α-Fe [3,26]. Ni-Cr-Fe is a solid solution with high plasticity and toughness, and low hardness [27].…”

Section: Xrd Patternmentioning

confidence: 99%

“…The repaired parts can be used as new products, greatly reducing resource waste and benefiting economic development. Therefore, using remanufacturing technology to repair the damaged shaft components that have failed due to wear can not only restore their original functions, or even better than the original function, but also decrease costs and increase economic efficiency [3].…”

Section: Introductionmentioning

confidence: 99%

“…Previously, our research group studied the microstructure and wear resistance of FeMnCrNi coating, and obtained a hardness of 353.44 HV0.1 [3], which is 1.72 times that of Q235 steel. Moreover, under the loading of 4 N to 8 N, the wear rate of FeMnCrNi coating increased from 14.126 × 10 −6 to 21.985 × 10 −6 mm 3 /N•m, whereas the wear rate of Q235 steel increases from 19.129 × 10 −6 to 39.584 × 10 −6 mm 3 /N•m.…”

Section: Introductionmentioning

confidence: 99%

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Microstructure and Wear Performance of High-Velocity Arc Sprayed FeMnCrNiBNbAl Coating

Qiang,

Kang,

Liu

et al. 2024

Coatings

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In this study, FeMnCrNiBNbAl wear-resistant coatings were prepared via high-velocity arc spraying technology on the surface of Q235 steel. The effects of spraying distance, voltage, and current on the coating performance were studied via the orthogonal experimental method with microhardness and porosity as evaluation indicators, and the process parameters were optimized. The order of primary and secondary factors affecting coating performance were: spraying distance, voltage, and current. The optimized process parameters are: spraying distance 200 mm, voltage 36 V, and current 240 A. The coating prepared using the optimized process parameters has an average microhardness of 756 HV0.1 and an average porosity of 1.03%. The coating mainly consists of α-Fe, Fe-Cr, Ni-Cr-Fe, Al2O3, and (Fe, Ni) solid solution. The coating friction coefficient was 0.5 while that of the substrate was 0.7. The depth and width of the wear marks of the coating were 6.32 µm and 555.41 µm, respectively, which are 66% and 32% lower in comparison with Q235 steel under the same test conditions. The wear forms of this coating were mainly fatigue peeling and adhesive wear.

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Section: Xrd Patternmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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