Microstructure and corrosion properties of FeCoNiCrMn high entropy alloy coatings prepared by high speed laser cladding and ultrasonic surface mechanical rolling treatment

Cui, Zeqin; Qin, Zhen; Dong, Peng; Mi, Yunjun; Gong, Dianqing; Li, Weiguo

doi:10.1016/j.matlet.2019.126769

Cited by 83 publications

(18 citation statements)

References 15 publications

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“…In order to solve these problems, a new method for steel sheets welding using the high-speed laser cladding technique is proposed in this article. High-speed laser cladding was developed by Fraunhofer Laser Technology Research Institute, and the purpose of this technique was mainly to increase the cladding efficiency (Cui et al, 2020;Yang et al, 2021;Chen et al, 2022). High-speed laser cladding illustrated excellent advantages compared with the traditional cladding process (Zhang et al, 2013;Xiao et al, 2021;Gao et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Quick butt welding of steel sheets using the high-speed laser cladding method

Liu²,

Shen³

et al. 2022

Front. Mater.

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Laser butt welding of thin steel sheets without filler material was widely used in many industrial fields. However, it was very difficult to focus the small laser spot on the narrow gap between the sheets during the laser butt welding process. In this study, a new method to weld thin steel sheets using a high-speed laser cladding technique is proposed. Stainless steel sheets with a thickness of 0.5 mm were welded using the high-speed laser cladding process. The results illustrated that good weld joints could be obtained without obvious cracks and pores in most of the specimens. The joints were well formed even if the sheets were not spliced together entirely. The average tensile strength of the specimens was about 500 MPa, which is almost the same as that of the substrate. The results also showed that most of the failures did not happen in the welding region, which could be concluded that the strength of joints was higher than that of the substrate. The microstructure was determined using an optical microscope (OM) and scanning electron microscope (SEM). The results showed that it may be a good choice to use the high-speed laser cladding technique for butt welding of stainless steel sheets.

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Section: Introductionmentioning

confidence: 99%

Quick butt welding of steel sheets using the high-speed laser cladding method

Liu²,

Shen³

et al. 2022

Front. Mater.

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“…EHLA was a new method to fabricate thin coating. It has the advantages of high efficiency, low heat input, and low dilution [ 12 – 14 ]. Regarding traditional laser cladding method, the laser beam melts the substrate first.…”

Section: Introductionmentioning

confidence: 99%

Microstructure and interfacial metallurgical bonding of 1Cr17Ni2/carbon steel extreme high-speed laser cladding coating

Ding

Wang

et al. 2021

Adv Compos Hybrid Mater

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“…Due to their simple solid solution structure, HEAs possess an outstanding combination of strength and ductility and excellent surface properties including hardness, wear resistance, oxidation and corrosion resistance, which make them suitable candidates for hard-facing applications [11,12]. Currently, encouraging researches on the manufacture of HEAs coating on the traditional materials have been reported [13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Laser Cladding of Al0.5CoCrCuFeNiSi High Entropy Alloy Coating without and with Yttria Addition on H13 Steel

et al. 2020

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Al0.5CoCrCuFeNiSi high entropy alloy coating without and with a 1 wt.% Y2O3 addition was fabricated by laser cladding technique on H13 substrate. The results showed that the laser cladding coatings without and with Y2O3 addition consist of a mixture of body centered cubic (BCC) dendrites and face centered cubic (FCC) interdendrites. With the addition of Y2O3, the peaks of BCC dendrites in the coating shifted to leftwards, which is caused by the distortion of lattice due to the dissolution of Y with larger atomic radius. There exist cracks and porosities in the coating without Y2O3 addition. With Y2O3 addition, the cracks and porosities in the laser cladding coating were inhibited greatly. In addition, the microstructure of the coating with Y2O3 addition was refined due to the improving of the ratio of nucleation. The enhancement of properties, such as hardness, wear resistance and corrosion resistance, of the coating with Y2O3 addition came from the inhibition of cracks and porosities and the refinement of microstructure.

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Microstructure and corrosion properties of FeCoNiCrMn high entropy alloy coatings prepared by high speed laser cladding and ultrasonic surface mechanical rolling treatment

Cited by 83 publications

References 15 publications

Quick butt welding of steel sheets using the high-speed laser cladding method

Quick butt welding of steel sheets using the high-speed laser cladding method

Microstructure and interfacial metallurgical bonding of 1Cr17Ni2/carbon steel extreme high-speed laser cladding coating

Laser Cladding of Al0.5CoCrCuFeNiSi High Entropy Alloy Coating without and with Yttria Addition on H13 Steel

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