Effective role of short time furnace heat treatment and laser treatment on the residual stress and mechanical properties of NiCrBSi–WC weldments produced using plasma transferred arc welding process

Deenadayalan, K.; Vela, M. E.; Elayaperumal, A.; Arulvel, S.

doi:10.1016/j.jmrt.2021.09.113

Cited by 16 publications

(5 citation statements)

References 71 publications

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“…While not verified in this work, LHT most probably lowers the residual stresses on the surface which also increases the fatigue life of the parts. Such a reduction in residual stresses after laser heat treatment was recorded by Deenadaylan et al in [14]. This phenomenon would partially explain why the 500 W treatment also resulted in improved fatigue life without the surface roughness improvement.…”

Section: Surface Quality Properties Of the Structuresmentioning

confidence: 52%

Fatigue Life and Surface Quality of Laser Powder Bed Fusion Manufactured 316L Parts by Laser Heat Treatment

Rautio

Hirvimäki

Mäkikangas

et al. 2022

2022 7th International Conference on Business and Industrial Research (ICBIR)

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Laser heat treatment (LHT) with two sets of energy inputs was applied to laser powder bed fusion (LPBF) manufactured 316L parts and its effects were studied in this research. LHT processed structures were compared to the as built material in terms of microstructural analysis, hardness measurements and mechanical testing, surface roughness and fatigue life. The results show that the LHT can be used to enhance the material properties of LPBF manufactured 316L parts in several ways. With the higher energy density, the surface roughness could be nearly halved while the fatigue strength was simultaneously doubled with no meaningful recorded loss in hardness or ultimate tensile strength. Microstructural evolution at the surface due to the LHT resulted in a mixture of coarse columnar dendrite and cellular grain structure. According to the findings of this work, LHT appears as an attractive tool for enhancing the properties of LBPF 316L.

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Section: Surface Quality Properties Of the Structuresmentioning

confidence: 52%

Fatigue Life and Surface Quality of Laser Powder Bed Fusion Manufactured 316L Parts by Laser Heat Treatment

Rautio

Hirvimäki

Mäkikangas

et al. 2022

2022 7th International Conference on Business and Industrial Research (ICBIR)

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“…WC is a hard phase commonly used in metal composite materials [12,13], WC powder has a high melting point, high hardness, excellent wear resistance, and great wettability with metal alloy. Therefore, it is feasible to use a nickel-based tungsten carbide alloy for surfacing repair and surface strengthening [14,15]. A large number of studies have shown that the comprehensive performance of a WCreinforced nickel-based alloy surfacing layer is better.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on the Process of Submerged Arc Welding for Nickel-Based WC Flux-Cored Wire on Descaling Roll

Li,

Feng,

Han

et al. 2024

Coatings

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Descaling roll is a key component used to remove iron oxide on billet surface in hot rolling production lines, and its surface properties have a significant effect on the quality of hot rolling products. The descaling roll is in bad service condition and subjected to the dynamic impact caused by high-pressure water erosion and high temperature billet descaling process for a long time. Under the action of high temperature, strong wear, multi-cycle heat, force, flow and multi-field strong coupling, the surface is prone to wear and corrosion failure, which affects the continuous rolling production. Submerged arc welding provides an effective way to repair and strengthen the descaling roll surface. The content of WC hard phase has a significant effect on welding quality. At the same time, direct submerged arc welding of Ni based WC wire on the descaling roll surface is easy to cause cracks, and a gradient synergistic strengthening effect can be formed by setting the transition bottom layer in welding. At present, there is a lack of experiments related to the preparation of flux-cored wire with different contents and the overlaying for the bottom submerged arc welding. Relevant studies are urgently needed to further reveal the welding process mechanism to provide significant theoretical support for the preparation of wire materials and the improvement of welding quality. In this paper, 30% and 60% WC flux-cored wires were prepared by employing Ni-Cr-B-Si alloy powder as the base powder, and submerged arc welding tests were conducted on the descaling roll, preparing three welding layers, namely 70% NiCrBSi + 30% WC without the bottom layer, 70% NiCrBSi + 30% WC with the bottom layer, and 40% NiCrBSi + 60% WC with the bottom layer. The properties of the welding layer were evaluated by SEM, XRD, EDS, hardness, friction and wear, corrosion and impact experiments. The results show that the WC hard phase added in the filler metal has dissolved and formed a new phase with other elements in the melting pool. The surfacing layer mainly contains Fe-Ni, Cr-C, Fe3Si, Ni3C and other phases. The surfacing layer prepared by a different amount of WC flux-cored wire and the surfacing layer with or without the bottom layer have great differences in microstructure and properties. This study lays a significant theoretical foundation for optimizing the submerged arc welding process and preparing welding materials for the descaling roll and has significant practical significance and application value.

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“…Modifications of coating density, improvement of the inter-splat bonding, and adhesion strength to the substrate are aspects also reported in the literature [ 12 ]. Various remelting technologies have been recently investigated, such as flame [ 13 , 14 ], laser [ 15 , 16 , 17 ], plasma [ 18 , 19 ], or furnace treatment [ 6 , 15 , 20 ].…”

Section: Introductionmentioning

confidence: 99%

Considerations on the Wear Behavior of Vacuum-Remelted ZrO2-Reinforced Self-Fluxing Ni-Based Thermally Sprayed Alloys

Kazamer¹,

Muntean

Uţu

et al. 2023

Materials

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Without proper post-processing (often using flame, furnace, laser remelting, and induction) or reinforcements’ addition, Ni-based flame-sprayed coatings generally manifest moderate adhesion to the substrate, high porosity, unmelted particles, undesirable oxides, or weak wear resistance and mechanical properties. The current research aimed to investigate the addition of ZrO2 as reinforcement to the self-fluxing alloy coatings. Mechanically mixed NiCrBSi-ZrO2 powders were thermally sprayed onto an industrially relevant high-grade steel. After thermal spraying, the samples were differently post-processed with a flame gun and with a vacuum furnace, respectively. Scanning electron microscopy showed a porosity reduction for the vacuum-heat-treated samples compared to that of the flame-post-processed ones. X-ray diffraction measurements showed differences in the main peaks of the patterns for the thermal processed samples compared to the as-sprayed ones, these having a direct influence on the mechanical behavior of the coatings. Although a slight microhardness decrease was observed in the case of vacuum-remelted samples, the overall low porosity and the phase differences helped the coating to perform better during wear-resistance testing, realized using a ball-on-disk arrangement, compared to the as-sprayed reference samples.

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Effective role of short time furnace heat treatment and laser treatment on the residual stress and mechanical properties of NiCrBSi–WC weldments produced using plasma transferred arc welding process

Cited by 16 publications

References 71 publications

Fatigue Life and Surface Quality of Laser Powder Bed Fusion Manufactured 316L Parts by Laser Heat Treatment

Fatigue Life and Surface Quality of Laser Powder Bed Fusion Manufactured 316L Parts by Laser Heat Treatment

Experimental Study on the Process of Submerged Arc Welding for Nickel-Based WC Flux-Cored Wire on Descaling Roll

Considerations on the Wear Behavior of Vacuum-Remelted ZrO2-Reinforced Self-Fluxing Ni-Based Thermally Sprayed Alloys

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