Effect of laser remelting on corrosion and wear resistance of Fe82Cr16SiB alloy coatings fabricated by extreme high-speed laser cladding

Liu, Mingxia; Jiang, Hao; Gengrong, Chang; Xu, Yangyang; Ma, Fang; Xu, Ke

doi:10.1016/j.matlet.2022.132823

Cited by 22 publications

(5 citation statements)

References 8 publications

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“…It clearly shows the wear morphologies of the HVHSS surface are rather shallow and smooth without brittle failures compared to those of remelted duction iron, Mn13 steel, and the iron substrate, respectively. By laser melting and remelting the Fe82Cr16SiB coating, Liu et al [ 58 ] were able to reduce the friction coefficient and improve the wear resistance due to the increased flatness and crystal grain refinement within the coating after the remelting treatment. As shown in Figure 13 a,b, the average size of dendrites decreases down from 3~5 μm of the extreme high-speed laser cladded specimen (EHLA) to 1~2 μm of the laser cladded specimen (EHLA-LR).…”

Section: Research Advancements Concerning the Improvement Of The Surf...mentioning

confidence: 99%

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Status and Perspective of High-Energy Beam Surface Strengthening: High-Speed Steel

Dong

Guo

et al. 2022

Materials

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High-speed steel (HSS) is primarily used to manufacture cutting tools and roll materials for various machine tools. Improving the hardness, wear resistance, and corrosion resistance of HSS is of great significance to the development of the manufacturing and tool industries. The high-energy beams, consisting of laser, plasma beam, and electron beam processing (e.g., surface remelting, cladding, and alloying), have the advantageous characteristics of high heat source energy and good surface processing effect. The research status and perspective of the above three processing techniques on the surface properties (in particular, hardness, wear resistance, and corrosion resistance) of HSS is reviewed, and the principles, advantages, and disadvantages of the three strengthening methods are discussed. High-energy beam surface alloying appears to be the most cost-effective of HSS surface strengthening methods and is promising to receive increasing research attentions in the future.

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Section: Research Advancements Concerning the Improvement Of The Surf...mentioning

confidence: 99%

“… Cross-sectional SEM microstructure in near surface region: ( a ) EHLA; ( b ) EHLA-LR; Wear test results: ( c ) Wear scar width and wear rate; ( d ) Wear appearance of EHLA; ( e ) Wear appearance of EHLA-LR; ( f ) Wear appearance of the substrate [ 58 ]. …”

Section: Figurementioning

confidence: 99%

Status and Perspective of High-Energy Beam Surface Strengthening: High-Speed Steel

Dong

Guo

et al. 2022

Materials

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“…Base materials surfaced with the EHLA process have varied from mild steels [4] to tool steels [17], austenitic stainless steels [18,19], and titanium alloy Ti6Al4V [20]. Cast irons are common construction and engineering materials used in rolls, engine blocks and heads, gears, machine tool beds, etc.…”

Section: Introductionmentioning

confidence: 99%

High-speed laser cladding: new developments for wear and corrosion protection

Tuominen,

Hallaji,

Kiviö

et al. 2023

IOP Conf. Ser.: Mater. Sci. Eng.

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Fusion-bonded and low-diluted overlay welded coatings are frequently very thick (>1mm), which results in high material consumption (kg/m2) and expenses. High-speed laser cladding is a novel process, which can produce thin fusion-bonded and low-diluted coatings with high coverage rates and low heat input. Coating materials utilized in high-speed cladding have varied from soft Ni-based superalloys to harder martensitic stainless steels and base materials from low alloy steels to austenitic stainless steels. The ultimate objective has been to develop crack-free alternatives to environmentally hazardous hard-chrome plating. In this paper, high-speed laser cladding was used to fabricate relatively thin Ni-based coatings on various cast irons for corrosion protection and Ni-based hard-faced coatings reinforced with chromium (Cr3C2) and tungsten carbides (WC/W2C), for the first time, onto low-alloy structural and quenched & tempered steels for wear applications. Obtained coatings were characterized with X-ray diffraction (XRD), optical (OM), and scanning electron microscopy (SEM). Corrosion performances were explored in long-term salt spray tests. Mechanical and wear properties were tested with Vickers microhardness measurements and three-body dry-sand rubber wheel abrasion tests (RWAT). It was shown that soft low-diluted Ni-based coatings protected the cast iron base materials in salt spray tests. Ni-based hard-faced coatings with hardness up to 1200 HV1 exhibited high wear resistance in low-stress three-body abrasion better than hard-chrome plated coating, which was attributed to the high volume fraction of hard carbide reinforcements.

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“…As we all know, the deposition speed of EHLA is very high, about 20-200 m/min [1,22], and it is usually used to prepare a thin coating on the component surface (≤0.8 mm). In addition, when the process parameters, substrate state, or environmental conditions are abnormal, defects such as pores and cracks may occur inside the cladding layer.…”

Section: Introductionmentioning

confidence: 99%

Research of On-Line Monitoring Technology Based on Laser Triangulation for Surface Morphology of Extreme High-Speed Laser Cladding Coating

Wang

Guo

et al. 2023

Coatings

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This work aims to develop a novel method for on-line monitoring of coating quality during the Extreme High-speed Laser Cladding (EHLA) process. JG-11 coating was prepared by EHLA, and microstructure, microhardness, corrosion performance, and scratch resistance were investigated. To analyze the influences of fluctuations in processing parameters on coating quality, a single-factor experiment scheme was designed and an on-line monitoring system based on laser triangulation was built. Furthermore, a new forming method for the surface profile of EHLA coating was proposed, and a new comprehensive evaluation index of surface morphology was accordingly designed. Benefitting from the extremely high cooling rate, EHLA JG-11 coating had fine grains, high hardness, and better corrosion resistance and scratch resistance than those of Electroplating Hard Chromium (EHC). The results revealed that the surface morphologies presented different characteristics due to the fluctuations of process parameters, such as high surface flatness, deep pits, small peaks, poor directionality, etc. The comprehensive evaluation index composed of Sa, Ssk, and Str could effectively characterize the surface morphology of EHLA coating, which proved that the monitoring system and evaluation method could realize on-line monitoring of the process parameters during the EHLA process.

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Effect of laser remelting on corrosion and wear resistance of Fe82Cr16SiB alloy coatings fabricated by extreme high-speed laser cladding

Cited by 22 publications

References 8 publications

Status and Perspective of High-Energy Beam Surface Strengthening: High-Speed Steel

Status and Perspective of High-Energy Beam Surface Strengthening: High-Speed Steel

High-speed laser cladding: new developments for wear and corrosion protection

Research of On-Line Monitoring Technology Based on Laser Triangulation for Surface Morphology of Extreme High-Speed Laser Cladding Coating

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