Computational Analysis of Laser Cladding of Preset MCrAlY Coating Based on ANSYS I-Temperature Field

Wang, Dong Sheng; Yue, Li Ye; Yang, Hao; Zhang, Pei Pei

doi:10.4028/www.scientific.net/msf.1020.139

Cited by 5 publications

(1 citation statement)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…2. The corresponding nite element numerical simulation model was established through the indirect thermal-mechanical coupling method via the ANSYS nite element software, and the concrete model construction is seen in Literatures [52,53] in details.…”

Section: Thermal-mechanical Coupling Finite Element Modelingmentioning

confidence: 99%

Numerical simulation of convex shape beam spot on stress field of plasma-sprayed MCrAlY coating during laser cladding process

Zhang

Chu

et al. 2021

Int J Adv Manuf Technol

View full text Add to dashboard Cite

In order to reduce the thermal stress at clad layer and further reduce the crack generation in the laser cladding process, a method of controlling the cracks at clad layer by changing the laser energy density was proposed. The comparative thermal-mechanical coupling nite element analysis was conducted for the uniform rectangular spot and convex shape beam spot cladding processes on plasma-sprayed MCrAlY coating through the numerical simulation method based on the ANSYS software. The results show that the rapid heating and cooling characteristics, which are typical in laser processing, are manifested in the cladding process using the uniform rectangular spot, and the convex shape spot can exert the preheating and slow cooling effects to a certain extent, so as to reduce the temperature gradient of the cladding zone and non-cladding zone. In addition, on the precondition of equivalent cladding effect, the thermal stress at the clad layer is also low, so the cracking tendency of the clad layer can be effectively mitigated. Relative to the laser beam shaped diffractive optical element special for design and manufacturing, superposing two uniform rectangular spots with different sizes and energy densities is a simpler and more effective method of acquiring the convex shape spot.

show abstract

Section: Thermal-mechanical Coupling Finite Element Modelingmentioning

confidence: 99%

Numerical simulation of convex shape beam spot on stress field of plasma-sprayed MCrAlY coating during laser cladding process

Zhang

Chu

et al. 2021

Int J Adv Manuf Technol

View full text Add to dashboard Cite

show abstract

Grain growth characteristics of plasma-sprayed nanostructured Al2O3-13wt.%TiO2 coatings during laser remelting

Wang

2021

Ceramics International

View full text Add to dashboard Cite

Influences of Temperature Field on Microstructural Characteristics of Laser Cladding Al₂O₃-13wt.%TiO₂ Coating Prepared by Plasma Spraying

Wang

Zhang

et al. 2021

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

To explore effects of temperature field in laser cladding on structure of ceramic coating prepared by plasma spraying, a finite element model of continuous moving three-dimensional temperature field of laser cladded Al2O3-13wt.%TiO2 coating prepared by plasma spraying was constructed by the parametric design language of ANSYS finite element software to analyze temperature field during laser cladding. According to analysis results, it is very difficult to realize complete remelting of the whole preset ceramic coating during laser cladding when it is thick, which is related with the relatively low thermal conductivity of the ceramic materials. The whole coating can be divided into remelting zone, sintering zone and residual plasma spraying zone according to temperature field distribution in the zone of cladding. Given the optimal technological parameters, relatively thick remelting zone and sintering zone could be gained under the relatively low laser cladding power and relatively low scanning speed. Experimental results demonstrated that the ceramic coating after cladding formed remelting zone with small-sized and dense isometric crystals, sintering zone and lamellar residual plasma spraying zone. Moreover, the calculated results of thickness of the remelting zone and sintering zone conformed well to experimental values. This proved that the constructed finite element model is accurate and reliable.

show abstract

Computational Analysis of Laser Cladding of Preset MCrAlY Coating Based on ANSYS I-Temperature Field

Cited by 5 publications

References 13 publications

Numerical simulation of convex shape beam spot on stress field of plasma-sprayed MCrAlY coating during laser cladding process

Numerical simulation of convex shape beam spot on stress field of plasma-sprayed MCrAlY coating during laser cladding process

Grain growth characteristics of plasma-sprayed nanostructured Al2O3-13wt.%TiO2 coatings during laser remelting

Influences of Temperature Field on Microstructural Characteristics of Laser Cladding Al₂O₃-13wt.%TiO₂ Coating Prepared by Plasma Spraying

Contact Info

Product

Resources

About

Computational Analysis of Laser Cladding of Preset MCrAlY Coating Based on ANSYS I-Temperature Field

Cited by 5 publications

References 13 publications

Numerical simulation of convex shape beam spot on stress field of plasma-sprayed MCrAlY coating during laser cladding process

Numerical simulation of convex shape beam spot on stress field of plasma-sprayed MCrAlY coating during laser cladding process

Grain growth characteristics of plasma-sprayed nanostructured Al2O3-13wt.%TiO2 coatings during laser remelting

Influences of Temperature Field on Microstructural Characteristics of Laser Cladding Al2O3-13wt.%TiO2 Coating Prepared by Plasma Spraying

Contact Info

Product

Resources

About

Influences of Temperature Field on Microstructural Characteristics of Laser Cladding Al₂O₃-13wt.%TiO₂ Coating Prepared by Plasma Spraying