Tribological properties of laser cladding TiB2 particles reinforced Ni-base alloy composite coatings on aluminum alloy

Lin, He; Tan, Yaohua; Wang, Xiaolong; Jing, Qi-Feng; Xin, Hu

doi:10.1007/s12598-014-0299-y

Cited by 24 publications

(13 citation statements)

References 17 publications

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“…However, the relative low surface hardness, poor wear resistance and easy adhesive wear limit the service life and application of AISI321 stainless steel in the manufactured parts [3]. Therefore, it is necessary to use surface modi cation technologies to improve its friction-reduction and anti-wear properties [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

The friction-reduction and anti-wear mechanism of AISI321 stainless steel treated by surface nanocrystallization assisted sulfurization

Ding

Li²

2023

Preprint

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Through compound treatment of surface nanocrystallization and low-temperature ion sulfurization, the compound-modified layer (nanocrystalline/FeS film) with excellent friction-reduction and anti-wear properties was fabricated on the surface of AISI321 stainless steel. A comparative study is conducted on the element distribution, microstructure, and vacuum tribology properties (1 × 10‒4 Pa) of compound-treated samples, single-related samples (surface nanocrystallization or low-temperature ion sulfurization), and original substrate samples. The nanocrystallization treatment formed the high hardness, high activity nanocrystalline structure on the surface of AISI321, which results in significantly refined microstructure, increased thickness and concentration of S element in the compound-sulfurized layer compared to the single-sulfurized layer on the substrate. Tribological tests reveal that both the original AISI321 substrate and the single-sulfurizing treated samples are subject to severe abrasion. Single nanocrystallization treatment can improve the wear resistance of AISI321, while the compound treatment can obviously improve the comprehensive tribological properties with milder wear and lower friction of coefficient. The good tribological properties of the compound-modified layer are related to the enhancement of substrate hardness and the increase of the thickness, density, and homogeneity of the sulfurized layer. Furthermore, a physical model is developed for the vacuum tribological behavior of the samples after different treatments. This model provides a reference for revealing the tribological mechanism of the compound-modified layer treated by surface nanocrystallization assisted chemical heat treatment.

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Section: Introductionmentioning

confidence: 99%

The friction-reduction and anti-wear mechanism of AISI321 stainless steel treated by surface nanocrystallization assisted sulfurization

Ding

Li²

2023

Preprint

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“…In addition, as its heating and cooling rate is lower than that of laser cladding, the molten pool can be maintained for a long time, which is conducive to the formation of a homogeneous structure and greatly reduces defects [9,10]. As a metal-based composite coating of the hard phase, tungsten carbide has been widely used in the industry due to its high wear resistance, good hardness and satisfactory toughness [11][12][13]. In addition, tungsten carbide has good toughness, strength and wear resistance due to the comprehensive effect of bonding and is widely used in wear-resistant tools [14,15].…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Mechanical and Impact Behaviors of WC-Particle-Reinforced Nickel-Based Alloy Surfacing Layers at Evaluated Temperatures

Zhang

et al. 2023

Metals

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A WC-particle-reinforced nickel-based alloy surfacing layer was fabricated on 42CrMo ultra-high-strength steel. The microstructure and the mechanical and impact-damage behaviors of the surfacing layers at the evaluated temperatures were investigated using X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX) and the Vickers hardness tester. Results showed that these WC particles gradually changed from elongated and crisscross needle-like phases to blocks with the increase in impact temperature. Numerous carbide phases (e.g., (Cr,Ni,Fe)23C6) and γ-Ni phases were formed in the substrate matrix. The surfacing layer showed a typical brittle fracture, and the impact energy decreased with the increase in temperature. Moreover, the surfacing layer showed a clear quasi-cleavage fracture morphology without dimples after a 600 °C impact test but exhibited a mixture of dimple fractures and cleavage fractures after the 200 °C and 400 °C impact tests. The Vickers fracture toughness test showed that the average hardness of the surfacing layer after a 600 °C impact test was 383 HV1.0, which is about 0.8 times that after the 200 °C impact test. In addition, the WC particles in the surfacing layer after the 600 °C impact test showed the highest fracture toughness, but the corresponding Ni40A binder phase possessed the lowest fracture toughness.

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“…In this context, tungsten-based alloy bulk materials were prepared by laser sintering, which provided theoretical and experimental support for 3D printing technology of tungsten products. The so-called laser sintering is the use of ultra-high energy density laser beam (10 4 -10 5 W/cm 2 ) as a heat source to irradiate the material surface, so that the material melts, diffuses and solidifies rapidly, thus forming a material with special properties [11][12][13][14][15]. Compared with vertical melting sintering, laser technology has the following advantages: Short cycle, pollution-free, and can prepare complex products.…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Properties of Tungsten Rhenium Alloy Prepared by Laser Sintering

Jiang¹

2020

Int J Metall Met Phys

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Tribological properties of laser cladding TiB2 particles reinforced Ni-base alloy composite coatings on aluminum alloy

Cited by 24 publications

References 17 publications

The friction-reduction and anti-wear mechanism of AISI321 stainless steel treated by surface nanocrystallization assisted sulfurization

The friction-reduction and anti-wear mechanism of AISI321 stainless steel treated by surface nanocrystallization assisted sulfurization

Microstructure and Mechanical and Impact Behaviors of WC-Particle-Reinforced Nickel-Based Alloy Surfacing Layers at Evaluated Temperatures

Microstructure and Properties of Tungsten Rhenium Alloy Prepared by Laser Sintering

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