Residual stress and cracking behaviors of Cr13Ni5Si2 based composite coatings prepared by laser-induction hybrid cladding

Wang, DengZhi; Hu, Qianwu; Zeng, Xiaoyan

doi:10.1016/j.surfcoat.2015.04.035

Cited by 73 publications

(24 citation statements)

References 26 publications

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“…1 considering the elastic and the thermal strain. is the normal tensile residual stress [3,22]. , E and h are defined as the thermal expansion coefficient, Young's modulus and thickness, respectively.…”

Section: Methodsmentioning

confidence: 99%

“…In this process, a laser heat source is used to deposit a thin layer, mostly at micro-scale, of a desired material on a substrate material [2]. One of the challenges of this process is the formation of tensile residual stresses in the thermally treated area [3][4][5]. Residual stresses are the locked in stress in any engineering components after thermal or mechanical treatment in the absence of any external load [6].…”

Section: Introduction To the Style Guidementioning

confidence: 99%

“…A one-dimensional analytical model was proposed to predict the stress evolution considering elastic, plastic and thermal strain [10]. To predict the tensile residual stress, a simplified analytical model was established based on the elastic mechanics for dissimilar materials by Wang et al [3]. Numerical methods are applied to calculate three-dimensional state of residual stresses in the treated object.…”

Section: Introduction To the Style Guidementioning

confidence: 99%

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An analytical model to predict and minimize the residual stress of laser cladding process

et al. 2018

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Laser cladding is one of the advanced thermal techniques used to repair or modify the surface properties of high-value components such as tools, military and aerospace parts. Unfortunately, tensile residual stresses are generated in the thermally treated area of this process. This work focuses on to investigate the key factors for the formation of tensile residual stress and how to minimize it in the clad when using dissimilar substrate and clad materials. To predict the tensile residual stress, a onedimensional analytical model has been adopted. Four cladding materials (Al 2 O 3 , TiC, TiO 2 , ZrO 2 ) on the H13 tool steel substrate and a range of preheating temperatures of the substrate, from 300 to 1200 K, have been investigated. Thermal strain and Young's modulus are found to be the key factors of formation of tensile residual stresses. Additionally, it is found that using a preheating temperature of the substrate immediately before laser cladding showed the reduction of residual stress.

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Section: Methodsmentioning

confidence: 99%

Section: Introduction To the Style Guidementioning

confidence: 99%

Section: Introduction To the Style Guidementioning

confidence: 99%

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An analytical model to predict and minimize the residual stress of laser cladding process

et al. 2018

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“…6 Lanyun et al 4 found that grain refinement by melting pool convection and vibration which are induced by ultrasonic vibration is the main reason for material's uniform and residual stress decrease. Qin et al 5 pointed out that melting pool convection enhanced by electromagnetic stirring is beneficial for cooling down of the melting pool, which contributes to the grain refinement and the increase in microhardness.…”

Section: Introductionmentioning

confidence: 99%

“…Qin et al 5 pointed out that melting pool convection enhanced by electromagnetic stirring is beneficial for cooling down of the melting pool, which contributes to the grain refinement and the increase in microhardness. Wang et al 6 concluded that laserinduction hybrid cladding not only decreases residual stress effectively but can also avoid cracks in the large area. Qi et al…”

Section: Introductionmentioning

confidence: 99%

Effect of ultrasonic impact peening on TI-6AL-4V laser deposition shaping

Sun

Zhang

et al. 2017

Journal of Laser Applications

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Ti-6Al-4V is widely used in the aerospace industry, and the laser deposition shaping of Ti-6Al-4V is considered as an efficient method for manufacturing complex structural components. However, the components manufactured by laser deposition shaping face problems of distortion and cracking. In order to avoid these problems, ultrasonic impact peening was introduced into the Ti-6Al-4V laser deposition shaping process in this study. The effect of ultrasonic impact peening on microstructural modification, residual stress, specimen distortion, and microhardness of the laser deposition shaping specimen was studied. Experiments of laser deposition shaping were carried out with a 6 kW carbon dioxide laser and a coaxial powder feeder. The ultrasonic impact peening was processed after one bead of the Ti-6Al-4V laser deposition clad was accomplished. After mechanical polish, the microstructure of the ultrasonic impact peened specimen was observed using a scanning electron microscope. There was a grain refinement layer in the surface region of the clad with a depth of approximately 200 um. The residual stress of the specimen was measured by X-ray diffraction. The result of the residual stress measurement showed that the compressive residual stress of the specimen is introduced by the ultrasonic impact peening. The distortion of the specimen is measured using a three-coordinate measuring machine. Besides, inhibition of crack generation was achieved in the specimen processed by the ultrasonic impact peening. In conclusion, the ultrasonic impact peening is beneficial for the process of Ti-6Al-4V laser deposition shaping.

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A thermo-mechanical model for simulating the temperature and stress distribution during laser cladding process

Zhang

Kovacevic

2019

Int J Adv Manuf Technol

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Residual stress and cracking behaviors of Cr13Ni5Si2 based composite coatings prepared by laser-induction hybrid cladding

Cited by 73 publications

References 26 publications

An analytical model to predict and minimize the residual stress of laser cladding process

An analytical model to predict and minimize the residual stress of laser cladding process

Effect of ultrasonic impact peening on TI-6AL-4V laser deposition shaping

A thermo-mechanical model for simulating the temperature and stress distribution during laser cladding process

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