In situ synthesized high volume fraction WC reinforced Ni-based coating by laser cladding

Shu, Da; Li, Zhuguo; Zhang, Ke; Yao, Chengwu; Li, Dayong; Dai, Zhujiang

doi:10.1016/j.matlet.2017.02.076

Cited by 121 publications

(35 citation statements)

References 15 publications

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“…Tačiau yra žinoma, kad, taikant plazminį, elektrolankinį, liepsninį purškimą, susiformuoja sluoksninė struktūra, kuriai būdingas didelis akytumas ir nestipri adhezija. Literatūros apžvalga parodė, kad paskutinė Ni/WC dangų technologijų vystymosi tendencija yra lazerinis purškimas, kurio metu milteliai tiekiami į substrato paviršiumi judantį lazerio spindulį, kuris juos išlydo ir suformuoja atskirą dangos takelį paviršiuje (Shu et al, 2018;Erfanmanesh, Abdollah-Poura, Mohammadian-Semnani, & Shoja-Razavi, 2018;Ortiz, García, Cadenas, Fernández, & Cuetos, 2017;Weng, A. Wang, Wu, Y. Wang, & Yang, 2016;Xu, Zhang, Xuan, Wang, & Tu, 2012;Zhou, Zeng, Hu, & Huang, 2008;Zhou, Dai, & Zeng, 2009;Liang & Wong, 1997 Atsižvelgiant į minėtus kitų taikomų būdų trūkumus, šiame darbe pasiūlyta pritaikyti mažiau intensyvius kaitinimo metodus formuojant Ni/WC dangas. Yra žinoma, kad perlydomųjų dangų struktūra ir savybės priklauso nuo pasirinkto perlydymo būdo.…”

Section: įVadasunclassified

Apsauginių Kompozicinių Dangų Metalinės Nikelio Matricos Pagrindu Tyrimas / Investigation of Protective Composite Coatings on the Basis of Nickel Metal Matrix

Gendvilis

Škamat

2019

Science - Future of Lithuania

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In the present study, the opportunity to improve the coatings properties using re-melting technique is studied. In the aim to determine the influence of the re-melting on the properties of coatings, the experimental study was performed. The surface of S235J0 steel was coated using three different re-melting methods with different heating duration. The mixture of NiCrFeCSiB alloy powders and carbides of WC type was used for spraying. The principal characteristics of the sprayed coatings were examined and compared with each other. The tests allowed concluding that the introduction of the re-melting process of different duration has tangible impact upon the structure, hardness and wearing resistance of the coatings

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Section: įVadasunclassified

Apsauginių Kompozicinių Dangų Metalinės Nikelio Matricos Pagrindu Tyrimas / Investigation of Protective Composite Coatings on the Basis of Nickel Metal Matrix

Gendvilis

Škamat

2019

Science - Future of Lithuania

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“…However, previous researches have been focused on the effect of process parameters on the final properties of the LC coating, while the effect of process parameters on the solidification microstructures evolution and geometric characteristics is less discussed. Furthermore, there exist many studies on the mechanical properties and wear resistance of ceramic particles (e.g., WC, TiC, TiN, B 4 C) reinforced Ni-based alloy composite coating by LC [10,16,17], but there is still no study on the TiB 2 /Inconel 718 alloy composite coating. As such, the TiB 2 /Inconel 718 alloy composite coatings were prepared on the surface of 45# steel by LC, and introduce energy input (the ratio of laser power and scanning speed) to comprehensively study the effects of process parameters on geometric characteristics, microstructure evolution, bonding strength, microhardness and tribological properties of TiB 2 /Inconel 718 alloy composite coatings by LC.…”

Section: Introductionmentioning

confidence: 99%

Effects of Process Parameters on Geometrical Characteristics, Microstructure and Tribological Properties of TiB2 Reinforced Inconel 718 Alloy Composite Coatings by Laser Cladding

et al. 2020

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The TiB2 reinforced Inconel 718 alloy composite coatings were prepared on carbon steel by laser cladding. The energy input (the ratio of laser power and scanning speed, E) was introduced to investigate the effects of process parameters on geometrical characteristics, microstructure and tribological properties of composite coatings. The results show that the dilution rate decreases and the contact angle increases, respectively, as E decreases from 200.00 J/mm to 80.00 J/mm, which causes the decrease of the boding strength from 1.91 GPa to 0.39 GPa. The composite coatings contain the phases of γ-(Ni, Fe), Laves, TiB2, TiB, TiC, Ni3B, CrB4 and Cr23C6. As E decreases from 200.00 J/mm to 133.33 J/mm, the primary dendrite arm spacing (PDAS) and the Laves content of the composite coating decrease for the increase of cooling rate, leading to the increase of microhardness, the improvement of tribological properties and the change of wear mechanism from the severe multi-plastic deformation wear, adhesive wear and oxidative wear to the slight abrasive wear. However, as E decreases from 133.33 J/mm to 80.00 J/mm, for the weak Marangoni convection, TiB2 particles are prone to aggregate in the top of the composite coating which causes the increase of the PDAS and the Laves content, leading to the decrease of the microhardness and the degradation of tribological properties, and the wear mechanism change to the multi-plastic deformation wear and abrasive wear gradually.

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“…WC is widely used as a reinforcement in Fe-based alloy (Ref 1 ), Ni-based alloy (Ref 2 , 3 ), and Co-based alloy (Ref 4 , 5 ). WC + Ni-based composites generally have the advantages of high hardness, high temperature resistance, and excellent wear resistance and have been widely used in mining machinery (Ref 6 – 9 ).…”

Section: Introductionmentioning

confidence: 99%

Effect of Post-Heat Treatment on the Microstructure and Mechanical Properties of Laser-Deposited WxC + Ni-Based Composite Thin Walls

Chen

Pan

et al. 2020

J. of Materi Eng and Perform

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This paper reports the effect of post-heat treatment (PHT) on laser-deposited WxC + Ni-based composite thin walls. The PHT at 700, 800, and 900°C was conducted to modify the microstructure and mechanical properties of the composite. The results showed that the as-deposited composite had a weak flexural strength and plasticity due to the brittle nature of the eutectic phase. The eutectic phase consisted of M 7 C 3 , M 2 C, and a small amount of the c phase. However, after PHT at a certain temperature (e.g., 700 or 800°C), the eutectic phase gradually disappeared, and carbides, such as M 7 C 3 and M 2 C, tended to be distributed uniformly in the c matrix, which improved the flexural strength of the composite. Nevertheless, after the PHT at 900°C, the flexural strength of the composite displayed a downward trend, which was mainly because of the severe softening of the c phase. In addition, the plasticity of this composite continuously improved as the eutectic phase disappeared and the c phase softened. Based on the above results, we proposed a PHT at 800°C for 1 h as an optimal process for this WxC + Ni-based composite.

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In situ synthesized high volume fraction WC reinforced Ni-based coating by laser cladding

Cited by 121 publications

References 15 publications

Apsauginių Kompozicinių Dangų Metalinės Nikelio Matricos Pagrindu Tyrimas / Investigation of Protective Composite Coatings on the Basis of Nickel Metal Matrix

Apsauginių Kompozicinių Dangų Metalinės Nikelio Matricos Pagrindu Tyrimas / Investigation of Protective Composite Coatings on the Basis of Nickel Metal Matrix

Effects of Process Parameters on Geometrical Characteristics, Microstructure and Tribological Properties of TiB2 Reinforced Inconel 718 Alloy Composite Coatings by Laser Cladding

Effect of Post-Heat Treatment on the Microstructure and Mechanical Properties of Laser-Deposited WxC + Ni-Based Composite Thin Walls

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