Effect of Ti addition on microstructure and tribological properties of laser cladding Ni35/WC coating in an oxygen-free environment

Jing, Peiyao; Wang, Haijun; Chen, Wengang; Chen, Long; Yin, Hongze; Wu, Huajie; Li, Dongyang

doi:10.1016/j.surfcoat.2022.128480

Cited by 16 publications

(6 citation statements)

References 45 publications

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“…Therefore, the ceramic particles could not be completely melted during laser cladding. Their height distributions in the horizontal direction were inconsistent, resulting in uneven wear surfaces, which had a great impact on the COF of the coating [41].…”

Section: Wear Resistancementioning

confidence: 99%

Microstructure and wear resistance of laser cladding nano TiC/micro TiB2/C-276 composite coatings on 316L stainless steel

Liu

Wang

et al. 2023

Mater. Res. Express

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Four metal-ceramic composite coatings were prepared by laser cladding (LC) using Hastelloy C-276, nano-TiC and micro-TiB2 as raw materials to improve the surface properties and extend the service life of 316L stainless steel. The microstructure and mechanical properties were analyzed by metallographic microscopy, scanning electron microscopy (SEM), X-ray diffraction (XRD), Vickers hardness experiments, and friction and wear testing. The TiC and TiB2 phases were detected in the coating, exhibiting homogenous distribution as their content increased. As a result, the strengthening effect of the coating was enhanced, improving microhardness relative to that of the 316L substrate. The wear test revealed that the Hastelloy coating exhibited poor wear resistance, but the addition of TiC and TiB2 particles improved the wear resistance by reducing the wear rate. The lowest average coefficient and wear rate were attained at 50% and 70% ceramic contents, respectively. However, abundant hard particles on the surface easily fell off during the wear, which further impeded the surface degradation and increased the friction coefficient.

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Section: Wear Resistancementioning

confidence: 99%

Microstructure and wear resistance of laser cladding nano TiC/micro TiB2/C-276 composite coatings on 316L stainless steel

Liu

Wang

et al. 2023

Mater. Res. Express

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“…There are three main reasons for the high hardness of remelted coatings. Firstly, the fine grain strengthening effect of the dense and fine microstructure formed by laser rapid melting and solidification during laser remelting, coupled with the solid solution reinforced, dispersion reinforced, and hard phase reinforced effects of the reinforced phase [7]. Secondly, the new hard phases such as Ni3Fe and α-W2C produced under action of the high energy density laser, work together with hard phases such as Cr7C3, Cr23C6, and WC particles, greatly improving the hardness of the remelted coating [8].…”

Section: Coating Microhardnessmentioning

confidence: 99%

Influential effects of laser remelting on plasma-sprayed Ni60A/Ni-WC coating on high Al-Zn sinking roller

Wang,

Li,

Zhou

et al. 2023

Ninth International Conference on Mechanical Engineering, Materials, and Automation Technology (MMEAT 2023)

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In order to improve the performance of the plasma-sprayed Ni60A/Ni-WC composite coatings on the surface of high AlZn sinking roller, the as-sprayed Ni60A/Ni-WC coatings were treated using laser remelting technology, and the influential effects of laser remelting on the microstructure and performance of the Ni60A/Ni-WC coating was studied. The surface morphologies, microstructure, and microhardness of the Ni60A/Ni-WC coatings were analyzed using scanning electron microscopy (SEM) and microhardness tester. The high-temperature friction and wear characteristics of the Ni60A/Ni-WC coatings were also investigated. The results show that laser remelting treatment eliminates the defects such as lamellar structure and pores of the as-sprayed Ni60A/Ni-WC coatings, and the coatings density is improved. In addition, under the action of the high energy density laser, WC particles partially melt and precipitate dendritic structures around WC particles. The microhardness of Ni60A/Ni-WC coatings after laser remelting treatment are significantly improved, and their wear resistance are also significantly higher than that of the as-sprayed coatings.

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“…The friction coefficient was recorded continuously for the online data acquisition system of the testing machine, and the data acquisition interval was 10 s. After the friction experiment, the weight of the CFHRP after friction was measured using a FA324C multifunctional electronic balance with a division value of 0.01 mg. The wear rate was calculated according to Equation (1) [19]: The size of the lower CFHRP is 40 mm × 40 mm × 3 mm. Before the test, the CFHRP was put into an anhydrous ethanol beaker, cleaned for 15 min using an ultrasonic cleaner, dried quickly with a hairdryer, and weighed for the specimen.…”

Section: Characterizationmentioning

confidence: 99%

“…The friction coefficient was recorded continuously for the online data acquisition system of the testing machine, and the data acquisition interval was 10 s. After the friction experiment, the weight of the CFHRP after friction was measured using a FA324C multifunctional electronic balance with a division value of 0.01 mg. The wear rate was calculated according to Equation (1) [19]: The frictional wear characteristics of CFHRP were studied under a normal load of 20 N, a rotational speed of 100 r/min, and a friction time of 120 min with water lubrication and dry friction conditions. All tests were conducted at room temperature (20…”

Section: Characterizationmentioning

confidence: 99%

Study on the Tribological Properties of Micro-Al2O3 Modified Carbon Fiber Hybrid-Reinforced Polymer

et al. 2023

Self Cite

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Micro-sized Al2O3-modified carbon fiber hybrid reinforced polymer composites (CFHRP) were prepared using the vacuum-assisted resin transfer molding (VARTM) process, and friction and wear tests were performed on an MRTR-1 multifunctional friction and wear tester to study the effect of carbon fiber surface doping with trace amounts of Al2O3 and its content on the tribological properties of carbon fiber reinforced polymer composites. The surface morphology of the composite material was characterized using a three-dimensional confocal laser scanning microscope (LSM). The results showed that under dry friction conditions, the wear behavior of the composite material with micro-Al2O3 added was mainly abrasive wear and adhesive wear. Under the condition of water lubrication, the friction coefficient of the composite material with micro-Al2O3 added was higher than that of the carbon fiber/epoxy resin-based composite material without Al2O3, and the abrasive wear and adhesive wear were significantly reduced. In addition, under the condition of water lubrication, the cooling and boundary lubrication of water played a dominant role in the tribological behavior, so the influence of transfer film on the tribological behavior of the composite material was smaller than that under dry friction conditions. When the micro alumina content is 6%, the friction and wear reduction of CFHRP composite material are improved under water containing conditions. Under dry friction conditions, the content of micrometer alumina has a minimal effect on the change in friction coefficient.

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Effect of Ti addition on microstructure and tribological properties of laser cladding Ni35/WC coating in an oxygen-free environment

Cited by 16 publications

References 45 publications

Microstructure and wear resistance of laser cladding nano TiC/micro TiB2/C-276 composite coatings on 316L stainless steel

Microstructure and wear resistance of laser cladding nano TiC/micro TiB2/C-276 composite coatings on 316L stainless steel

Influential effects of laser remelting on plasma-sprayed Ni60A/Ni-WC coating on high Al-Zn sinking roller

Study on the Tribological Properties of Micro-Al2O3 Modified Carbon Fiber Hybrid-Reinforced Polymer

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