Improving surface properties of Fe-based laser cladding coating deposited on a carbon steel by heat assisted ultrasonic burnishing

Shen, Xuehui; Wang, Jiatian; Xu, Chonghai; He, Jianqun; Bai, Xiaolan

doi:10.1016/j.jmrt.2021.02.076

Cited by 31 publications

(10 citation statements)

References 59 publications

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“…The tensile stress was unfavorable for the mechanical properties of parts because it decreased the fatigue life and tensile properties of the depositions. The comprehensive residual stress was beneficial for improving the fatigue and wear resistance of parts owing the effects of forbidding the initiation and propagation of cracks [ 93 , 94 , 95 ]. As shown in Figure 9 b, compared to the Ti-6Al-4V substrate with the residual stress of −471.75 MPa, the residual stress in Ti coating created by PW laser reached to −511.65 MPa that contributed to the decreased susceptibility to crack and high resistance for crack generation and propagation [ 47 ].…”

Section: Residual Stress and Crackmentioning

confidence: 99%

A Review on Macroscopic and Microstructural Features of Metallic Coating Created by Pulsed Laser Material Deposition

2022

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Owing to the unparalleled advantages in repairing of high value-add component with big size, fabricating of functionally graded material, and cladding to enhance the surface properties of parts, the laser material deposition (LMD) is widely used. Compared to the continuous wave (CW) laser, the controllability of the laser energy would be improved and the temperature history would be different under the condition of pulse wave (PW) laser through changing the pulse parameters, such as duty cycle and pulse frequency. In this paper, the research status of temperature field simulation, surface quality, microstructural features, including microstructures, microhardness, residual stress, and cracking, as well as corrosion behavior of metallic coating created by pulsed laser material deposition have been reviewed. Furthermore, the existing knowledge and technology gaps are identified while the future research directions are also discussed.

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Section: Residual Stress and Crackmentioning

confidence: 99%

A Review on Macroscopic and Microstructural Features of Metallic Coating Created by Pulsed Laser Material Deposition

2022

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“…The porosity not only affects the surface roughness but also reduces the mechanical properties of the coating surface, easily leading to high wear rates [33]. Therefore, it is an essential factor to evaluate the surface quality of laser cladding coatings.…”

Section: Porositymentioning

confidence: 99%

Surface Properties of Medium-Entropy Alloy Coatings Prepared through a Combined Process of Laser Cladding and Ultrasonic Burnishing

et al. 2022

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The preparation of functional coatings on metal substrates is an effective method to enhance the surface of steel structures with good serviceability in applications for engineering parts. The objective of this research is to analyze the surface properties of two sorts of medium-entropy alloy (MEA) coatings prepared by laser cladding. After cladding, the two prepared coatings were strengthened by ultrasonic burnishing (UB) treatment. Cladding coating samples before and after being UB-treated were comparatively tested in order to investigate the process effects of UB. When compared with corresponding untreated coating samples, the roughness values of the two sorts of UB-treated samples were decreased by 88.7% and 87.6%, the porosities were decreased by 63.8% and 73.4%, and the micro-hardness values were increased by 41.7% and 32.7%, respectively. Furthermore, the two sorts of UB-treated coating samples exhibited better mechanical properties and wear resistance than corresponding untreated samples.

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“…In the IH-USRP process, the heating temperature is required to be controllable and not too high, so as not to cause the structure change of the material; the heating layer depth is controllable and only the surface of the workpiece is heated without causing the overall heating of the sample; heating should be rapid to reduce the heating temperature to the initial residual stress state effect. In the current research on heating-assisted surface strengthening, the commonly used heating methods include laser heating [20], high-frequency DC heating [21], resistance wire heating [22], etc. But there are few studies on induction heating.…”

Section: Introductionmentioning

confidence: 99%

Investigation on surface integrity and process parameters optimization of carburized 18CrNiMo7-6 steel by induction-heating assisted ultrasonic surface rolling process

Liu

Zheng²,

Tang³

et al. 2023

Preprint

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The effect of induction-heating assisted ultrasonic surface rolling process (IH-USRP) at different temperatures on the surface integrity of carburized 18CrNiMo7-6 steel was studied. The heating method is induction heating, and the heating temperature range is 100 °C ~ 300 °C. The residual stress, microhardness and surface topography of the modified layer on the sample surface were measured after ultrasonic surface rolling process (USRP). It was found that with the heating temperature increased, the residual compressive stress and the maximum residual compressive stress increased by 29% and 25.5% respectively, and the residual compressive stress depth also increased. The hardness affected layer increased from 1.5 mm to 1.8 mm, and the surface roughness decreased significantly. However, when the heating temperature is higher than the martensitic transformation temperature, the residual compressive stress and microhardness of the sample surface layer decreased, and the surface roughness increased. The process parameters of IH-USRP were optimized by grey correlation analysis method. The optimum process parameters to achieve the best surface integrity are static pressure 400 N, rotate speed 50 r/min, feed rate 0.04 mm/r and heating temperature 250 °C. The significant order of the effect on surface integrity are: static pressure > rotate speed > feed rate > heating temperature.

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Improving surface properties of Fe-based laser cladding coating deposited on a carbon steel by heat assisted ultrasonic burnishing

Cited by 31 publications

References 59 publications

A Review on Macroscopic and Microstructural Features of Metallic Coating Created by Pulsed Laser Material Deposition

A Review on Macroscopic and Microstructural Features of Metallic Coating Created by Pulsed Laser Material Deposition

Surface Properties of Medium-Entropy Alloy Coatings Prepared through a Combined Process of Laser Cladding and Ultrasonic Burnishing

Investigation on surface integrity and process parameters optimization of carburized 18CrNiMo7-6 steel by induction-heating assisted ultrasonic surface rolling process

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