The Effect of Dynamic Local Self-preheating in Laser Cladding on Gray Cast Iron

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YI, Peng ;XU, Pengyun ;FAN, Changfeng ;LI, Chengkai ;SHI, Yongjun .
The Effect of Dynamic Local Self-preheating in Laser Cladding on Gray Cast Iron. 
Strojniški vestnik - Journal of Mechanical Engineering, [S.l.], v. 61, n.1, p. 43-52, june 2018. 
ISSN 0039-2480.
Available at: <https://www.sv-jme.eu/article/the-effect-of-dynamic-local-self-preheating-in-laser-cladding-on-gray-cast-iron/>. Date accessed: 15 sep. 2019. 
doi:http://dx.doi.org/10.5545/sv-jme.2014.1807.
Yi, P., Xu, P., Fan, C., Li, C., & Shi, Y.
(2015).
The Effect of Dynamic Local Self-preheating in Laser Cladding on Gray Cast Iron.
Strojniški vestnik - Journal of Mechanical Engineering, 61(1), 43-52.
doi:http://dx.doi.org/10.5545/sv-jme.2014.1807
@article{sv-jmesv-jme.2014.1807,
	author = {Peng  Yi and Pengyun  Xu and Changfeng  Fan and Chengkai  Li and Yongjun  Shi},
	title = {The Effect of Dynamic Local Self-preheating in Laser Cladding on Gray Cast Iron},
	journal = {Strojniški vestnik - Journal of Mechanical Engineering},
	volume = {61},
	number = {1},
	year = {2015},
	keywords = {Laser cladding; gray cast iron; local self-preheating; numerical models; microstructure},
	abstract = {In laser cladding, high cooling rates outcomes with superior mechanical and metallurgical properties. However, this characteristic along with the additive nature of the process significantly contributes to the formation of the thermal stresses, which are the main cause of any potential delamination and crack formation across the remolten area. To reduce thermal stress caused and better manage the microstructure, a strategy of dynamic local self-preheating is designed. Laser cladding experiments of no preheating, static global preheating, and dynamic local preheating with gray cast iron are conducted. Parallel to experimental investigations, numerical models are established to study the temperature distributions and thermal stresses in different processes. The results indicate that dynamic local self-preheating contributes reducing the transient thermal stress and residual stress compared with others. By self-preheating the substrate, microstructures of the coarse grained region are well-developed. The self-preheated sample reveals more compact structure in fusion area and can derive less cracking prone during the cladding process.},
	issn = {0039-2480},	pages = {43-52},	doi = {10.5545/sv-jme.2014.1807},
	url = {https://www.sv-jme.eu/article/the-effect-of-dynamic-local-self-preheating-in-laser-cladding-on-gray-cast-iron/}
}
Yi, P.,Xu, P.,Fan, C.,Li, C.,Shi, Y.
2015 June 61. The Effect of Dynamic Local Self-preheating in Laser Cladding on Gray Cast Iron. Strojniški vestnik - Journal of Mechanical Engineering. [Online] 61:1
%A Yi, Peng 
%A Xu, Pengyun 
%A Fan, Changfeng 
%A Li, Chengkai 
%A Shi, Yongjun 
%D 2015
%T The Effect of Dynamic Local Self-preheating in Laser Cladding on Gray Cast Iron
%B 2015
%9 Laser cladding; gray cast iron; local self-preheating; numerical models; microstructure
%! The Effect of Dynamic Local Self-preheating in Laser Cladding on Gray Cast Iron
%K Laser cladding; gray cast iron; local self-preheating; numerical models; microstructure
%X In laser cladding, high cooling rates outcomes with superior mechanical and metallurgical properties. However, this characteristic along with the additive nature of the process significantly contributes to the formation of the thermal stresses, which are the main cause of any potential delamination and crack formation across the remolten area. To reduce thermal stress caused and better manage the microstructure, a strategy of dynamic local self-preheating is designed. Laser cladding experiments of no preheating, static global preheating, and dynamic local preheating with gray cast iron are conducted. Parallel to experimental investigations, numerical models are established to study the temperature distributions and thermal stresses in different processes. The results indicate that dynamic local self-preheating contributes reducing the transient thermal stress and residual stress compared with others. By self-preheating the substrate, microstructures of the coarse grained region are well-developed. The self-preheated sample reveals more compact structure in fusion area and can derive less cracking prone during the cladding process.
%U https://www.sv-jme.eu/article/the-effect-of-dynamic-local-self-preheating-in-laser-cladding-on-gray-cast-iron/
%0 Journal Article
%R 10.5545/sv-jme.2014.1807
%& 43
%P 10
%J Strojniški vestnik - Journal of Mechanical Engineering
%V 61
%N 1
%@ 0039-2480
%8 2018-06-27
%7 2018-06-27
Yi, Peng, Pengyun  Xu, Changfeng  Fan, Chengkai  Li, & Yongjun  Shi.
"The Effect of Dynamic Local Self-preheating in Laser Cladding on Gray Cast Iron." Strojniški vestnik - Journal of Mechanical Engineering [Online], 61.1 (2015): 43-52. Web.  15 Sep. 2019
TY  - JOUR
AU  - Yi, Peng 
AU  - Xu, Pengyun 
AU  - Fan, Changfeng 
AU  - Li, Chengkai 
AU  - Shi, Yongjun 
PY  - 2015
TI  - The Effect of Dynamic Local Self-preheating in Laser Cladding on Gray Cast Iron
JF  - Strojniški vestnik - Journal of Mechanical Engineering
DO  - 10.5545/sv-jme.2014.1807
KW  - Laser cladding; gray cast iron; local self-preheating; numerical models; microstructure
N2  - In laser cladding, high cooling rates outcomes with superior mechanical and metallurgical properties. However, this characteristic along with the additive nature of the process significantly contributes to the formation of the thermal stresses, which are the main cause of any potential delamination and crack formation across the remolten area. To reduce thermal stress caused and better manage the microstructure, a strategy of dynamic local self-preheating is designed. Laser cladding experiments of no preheating, static global preheating, and dynamic local preheating with gray cast iron are conducted. Parallel to experimental investigations, numerical models are established to study the temperature distributions and thermal stresses in different processes. The results indicate that dynamic local self-preheating contributes reducing the transient thermal stress and residual stress compared with others. By self-preheating the substrate, microstructures of the coarse grained region are well-developed. The self-preheated sample reveals more compact structure in fusion area and can derive less cracking prone during the cladding process.
UR  - https://www.sv-jme.eu/article/the-effect-of-dynamic-local-self-preheating-in-laser-cladding-on-gray-cast-iron/
@article{{sv-jme}{sv-jme.2014.1807},
	author = {Yi, P., Xu, P., Fan, C., Li, C., Shi, Y.},
	title = {The Effect of Dynamic Local Self-preheating in Laser Cladding on Gray Cast Iron},
	journal = {Strojniški vestnik - Journal of Mechanical Engineering},
	volume = {61},
	number = {1},
	year = {2015},
	doi = {10.5545/sv-jme.2014.1807},
	url = {https://www.sv-jme.eu/article/the-effect-of-dynamic-local-self-preheating-in-laser-cladding-on-gray-cast-iron/}
}
TY  - JOUR
AU  - Yi, Peng 
AU  - Xu, Pengyun 
AU  - Fan, Changfeng 
AU  - Li, Chengkai 
AU  - Shi, Yongjun 
PY  - 2018/06/27
TI  - The Effect of Dynamic Local Self-preheating in Laser Cladding on Gray Cast Iron
JF  - Strojniški vestnik - Journal of Mechanical Engineering; Vol 61, No 1 (2015): Strojniški vestnik - Journal of Mechanical Engineering
DO  - 10.5545/sv-jme.2014.1807
KW  - Laser cladding, gray cast iron, local self-preheating, numerical models, microstructure
N2  - In laser cladding, high cooling rates outcomes with superior mechanical and metallurgical properties. However, this characteristic along with the additive nature of the process significantly contributes to the formation of the thermal stresses, which are the main cause of any potential delamination and crack formation across the remolten area. To reduce thermal stress caused and better manage the microstructure, a strategy of dynamic local self-preheating is designed. Laser cladding experiments of no preheating, static global preheating, and dynamic local preheating with gray cast iron are conducted. Parallel to experimental investigations, numerical models are established to study the temperature distributions and thermal stresses in different processes. The results indicate that dynamic local self-preheating contributes reducing the transient thermal stress and residual stress compared with others. By self-preheating the substrate, microstructures of the coarse grained region are well-developed. The self-preheated sample reveals more compact structure in fusion area and can derive less cracking prone during the cladding process.
UR  - https://www.sv-jme.eu/article/the-effect-of-dynamic-local-self-preheating-in-laser-cladding-on-gray-cast-iron/
Yi, Peng, Xu, Pengyun, Fan, Changfeng, Li, Chengkai, AND Shi, Yongjun.
"The Effect of Dynamic Local Self-preheating in Laser Cladding on Gray Cast Iron" Strojniški vestnik - Journal of Mechanical Engineering [Online], Volume 61 Number 1 (27 June 2018)

Authors

Affiliations

  • China University of Petroleum, College of Mechanical and Electrical Engineering, Qingdao 266580, China
  • China University of Petroleum, College of Mechanical and Electrical Engineering, Qingdao 266580, China
  • China University of Petroleum, College of Mechanical and Electrical Engineering, Qingdao 266580, China
  • China University of Petroleum, College of Mechanical and Electrical Engineering, Qingdao 266580, China
  • China University of Petroleum, College of Mechanical and Electrical Engineering, Qingdao 266580, China

Paper's information

Strojniški vestnik - Journal of Mechanical Engineering 61(2015)1, 43-52

10.5545/sv-jme.2014.1807

In laser cladding, high cooling rates outcomes with superior mechanical and metallurgical properties. However, this characteristic along with the additive nature of the process significantly contributes to the formation of the thermal stresses, which are the main cause of any potential delamination and crack formation across the remolten area. To reduce thermal stress caused and better manage the microstructure, a strategy of dynamic local self-preheating is designed. Laser cladding experiments of no preheating, static global preheating, and dynamic local preheating with gray cast iron are conducted. Parallel to experimental investigations, numerical models are established to study the temperature distributions and thermal stresses in different processes. The results indicate that dynamic local self-preheating contributes reducing the transient thermal stress and residual stress compared with others. By self-preheating the substrate, microstructures of the coarse grained region are well-developed. The self-preheated sample reveals more compact structure in fusion area and can derive less cracking prone during the cladding process.

Laser cladding; gray cast iron; local self-preheating; numerical models; microstructure