Evolution in microstructure and high-temperature oxidation behaviors of the laser-cladding coatings with the Si addition contents

Zhang, Y.L.; Li, J.; Kang, Dan

doi:10.1016/j.jallcom.2020.154131

Cited by 30 publications

(9 citation statements)

References 31 publications

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“…For example, laser beam technology was used as the heat source to clad materials with different properties on the surface of a component, subsequently improving the substrate's surface performance. Compared to the traditional surface coating technologies such as thermal spraying, arc welding and chemical heat treatment, laser cladding offers unique properties including low dilution, fast cooling rates and good metallurgical bonding [9][10][11][12][13]. Cladding the alloy powder with high hardness and excellent corrosion resistance on the surface of AISI420 steel provides the ordinary kitchen knives with an excellent performance, thereby effectively reducing production costs while improving the economic benefits [14,15].…”

Section: Introductionmentioning

confidence: 99%

Research on microstructural and property evolution in laser cladded HAZ

Pan

Zhang³

et al. 2021

Surface Engineering

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In this study, the coating was fabricated on the AISI420 stainless steel substrate by laser cladding, and the 18Cr-0.2C Fe-based powder was used in the process. The substrate was close to the heat source exhibited a complex thermal cycle, as evidenced by the significant changes in microstructures and mechanical properties of those regions. The microstructure, phase compositions, mechanical and corrosion properties of the heat-affected zone (HAZ) were investigated systematically. The temperature distribution in the HAZ were accurately calculated. The results show that the microstructure consisted of three areas, HAZ1, HAZ2, and Substrate. The HAZ2 region exhibited agglomerated precipitated M 23 C 6 (M=Fe, Cr) carbides, the martensite was partially transformed into ferrite. Moreover, with a large number of corrosion pits that appeared after the salt spray test. Conversely, HAZ1's mechanical and corrosion properties were comparable to those of its substrate, as evidenced by the lack of corrosion pits in HAZ1 or substrate.

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Section: Introductionmentioning

confidence: 99%

Research on microstructural and property evolution in laser cladded HAZ

Pan

Zhang³

et al. 2021

Surface Engineering

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“…[8][9][10][11][12] However, only a handful consider the formation of more than one oxide film by the use of a modified PBR. [13][14][15] Among these, the experimentally observed passivity of Al-Mn alloys, 13 Ni-Cr-B-Si coatings, 14 and Zr alloys 15 have been investigated in the recent past by using a PBR that considers the weighted average volume of possible surface films.…”

Section: Introductionmentioning

confidence: 99%

Ab Initio-Based Metric for Predicting the Protectiveness of Surface Films in Aqueous Media

Gorelik

Singh

2023

Preprint

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Materials can passivate by forming surface films when placed in aqueous media. However, these films may or may not be stable, and their stability can be predicted by a metric called the Pilling-Bedworth Ratio (PBR). In this article, we extend PBR to predict passivation protectiveness of multi-component materials. We then evaluate this new PBR (ePBR)'s effectiveness by comparing its predictions against experimental studies of 21 multi-element materials of diverse chemistries, with agreement for 17 of the materials. Finally, we encode the methodology to compute ePBR in a web-application to predict the protectiveness of 140,000+ materials in the Materials Project database.

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“…Since the properties of the cladding layer mainly determined by the coating material, a considerable amount of scholars utilized different materials to obtain cladding layers, and the most typical of which is self-uxing alloys. According to its core elemental content, it is classi ed as iron-based, nickel-based, cobalt-based, and other self-uxing alloys [11,12]. Since nickel-based alloys have good wettability, corrosion resistance, oxidation resistance, fatigue resistance, impact resistance, and other remarkable properties in high-temperature environments, they have been widely applied in cold metalwork parts, crushing rollers, shafts, and other mechanical parts manufacturing [13][14][15].…”

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.

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Evolution in microstructure and high-temperature oxidation behaviors of the laser-cladding coatings with the Si addition contents

Cited by 30 publications

References 31 publications

Research on microstructural and property evolution in laser cladded HAZ

Research on microstructural and property evolution in laser cladded HAZ

Ab Initio-Based Metric for Predicting the Protectiveness of Surface Films in Aqueous Media

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

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