Effect of B/Si ratio on structure and properties of high-entropy glassy Fe25Co25Ni25(BxSi1-x)25 coating prepared by laser cladding

Cheng, Jiangbo; Sun, Bo; Ge, Yunyun; Hu, Xianlong; Zhang, Lianhua; Liang, Xiubing; Zhang, Xiancheng

doi:10.1016/j.surfcoat.2020.126320

Cited by 37 publications

(10 citation statements)

References 36 publications

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“…It revealed volume fraction of about 0.12 ± 0.01% pores dispersed randomly in the 3D-printed sample, indicating that 3D-printed parts are almost fully densified. The result has shown that density of 3D-printed sample is 6.83213 g/cm 3 ; by comparing the density of casting sample (6.83966 g/cm 3 ) [141], the relative density of 3D-printed sample is 99.89%, which is almost in consistent with the results of XRT.…”

Section: Defects In Slmsupporting

confidence: 78%

“…Solid materials can be divided into two types according to the arrangement of particles: crystalline materials with periodic and regular arrangement of particles and amorphous materials with short, orderly, and long-term disorder [1]. Amorphous bulk metals or amorphous structural metals, i.e., amorphous metals with dimensions that permitted structural applications, were not produced until the seventies from specially composed alloys [2,3]. Bulk metals of these alloys were produced by cooling from melt at a cooling speed of about 1000 K/s, but contained, i.e., the expensive metal palladium, which prevented larger volumes of production [4].…”

Section: Introductionmentioning

confidence: 99%

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Research progress on selective laser melting (SLM) of bulk metallic glasses (BMGs): a review

Zhang

Tan

Tian

et al. 2021

Int J Adv Manuf Technol

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Bulk metallic glasses (BMGs) are a subject of interest due to their superior specific properties such as low coefficient of friction, high strength, large ductility in bending, high elastic modulus, high microhardness, and high resistance to corrosion, oxidation, wear, and so on. However, BMGs are difficult to apply in industry due to their difficulty in manufacturing and secondary operation. In the past few decades, many efforts have been carried out to overcome the defects in the manufacturing of BMGs. It is difficult to fabricate complex structures with the whole amorphous alloy owing to the limit of crystallization and critical cooling rate. Additive manufacturing (AM), such as selective laser melting (SLM), can obtain relatively high cooling rates during the “layer-by-layer” process, which makes it possible to surpass the dimensional limitation of metallic glass. In the SLM process, the high-speed cooling of molten pool and the avoidance of secondary processing are very beneficial to the production and application of amorphous alloys. In this paper, based on the research of SLM additive manufacturing BMGs in recent years, the factors affecting crystallization and forming ability are discussed from many aspects according to different material systems. The status and challenges of SLM manufacturing BMGs including Fe-based, Zr-based, Al-based, and some composite-based BMGs will be presented. Mechanical properties and physicochemical properties were introduced. This review aims to introduce the latest developments in SLM additive manufacturing BMGs, especially on the development of process parameters, structure formation, simulation calculation, fracture mechanism, and crystallization behavior. With the traditional fabricating methods, BMGs were mainly used as a structure material. It will provide another alternative to use BMGs as a functional material by introducing SLM technology in amorphous preparation with complex geometry. This review summarizes the technical difficulty and application prospects of BMGs preparation by SLM and discusses the challenges and unresolved problems. This review identifies key issues that need to be addressed in this important field in the future. These problems are related to the application of BMGs as high-strength structural materials and new functional materials in the future.

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Section: Defects In Slmsupporting

confidence: 78%

Section: Introductionmentioning

confidence: 99%

Research progress on selective laser melting (SLM) of bulk metallic glasses (BMGs): a review

Zhang

Tan

Tian

et al. 2021

Int J Adv Manuf Technol

View full text Add to dashboard Cite

show abstract

“…Compared with the traditional surface treatment technologies such as surfacing, electroplating, vapor deposition, laser cladding has the advantages of low dilution, dense tissue coating. And substrate can form better metallurgical bonding, which is suitable for cladding material with many changes in grain size and content large and other characteristics [7,8]. In recent years, laser cladding as a new technology is applied to the surface modification of materials, such as gas turbine blades, gears [9].…”

Section: *Manuscriptmentioning

confidence: 99%

Fabrication, microstructure and micromechanical properties of Fe-based metallic glass coating manufactured by laser

Zhang

Yan

et al. 2021

Surface and Coatings Technology

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“…The alloy powder is delivered into the molten pool by either synchronous feeding or preseting to form a reliable metallurgical bonding between the substrate and coating. Because of the simple process, superior processing e ciency, rapid heating and rapid cooling (10 5 -10 8 K/s), low coating dilution rate, and small deformation, laser cladding uses the shortest cycle to achieve the purpose of surface modi cation and repair [4][5][6][7][8]. At present, it has been widely utilized in the repair and remanufacturing of high-value parts or parts with distinctive shapes [9,10].…”

Section: Introductionmentioning

confidence: 99%

Microstructure and mechanical properties investigation of Ni35A–TiC composite coating deposited on AISI 1045 steel by laser cladding

Zhang

Lian

Cao

et al. 2021

Int J Adv Manuf Technol

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In this research, the TiC-Ni35A composite coating was fabricated on the AISI 1045 steel substrate by laser cladding process. The cross-sectional morphology, microstructure, micro-hardness, and wear resistance of coatings obtained under different laser energy densities (E) and TiC powder ratios (PR) were analyzed.According to the results, all the coating had a reliable metallurgical bonding with the AISI 1045 steel substrate. The X-ray diffraction (XRD) analysis revealed that the coating phases were Ni and TiC. The average microhardness of the Ni35A-80wt.% TiC coating reached up to 75.12 HRC. The minimum coe cient of friction of the composite coating was only about 30% of the AISI 1045 substrate. The wear form was mainly adhesive wear when altering the TiC powder ratios, while the wear form also contained abrasion wear under different energy densities. The ability of decomposition and re-nucleation of TiC was signi cantly improved with the increase of laser energy densities and the decrease of TiC powder ratios.The micro-hardness, wear resistance, and coe cient of friction of the composite coating were improved because of the TiC strengthening phase particles. Compared with the AISI 1045 steel substrate, the microhardness and wear resistance of the composite coating was increased by 5.29 times and 6.26 times, respectively.

show abstract

Effect of B/Si ratio on structure and properties of high-entropy glassy Fe25Co25Ni25(BxSi1-x)25 coating prepared by laser cladding

Cited by 37 publications

References 36 publications

Research progress on selective laser melting (SLM) of bulk metallic glasses (BMGs): a review

Research progress on selective laser melting (SLM) of bulk metallic glasses (BMGs): a review

Fabrication, microstructure and micromechanical properties of Fe-based metallic glass coating manufactured by laser

Microstructure and mechanical properties investigation of Ni35A–TiC composite coating deposited on AISI 1045 steel by laser cladding

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