Paper Title:
Thermomechanical Simulation of Single Splat Solidification and Cooling in Plasma Spray Forming
  Abstract

Mechanical strength and service life of the coatings manufactured by plasma spray forming are significantly reduced by residual stresses. A 2D finite element model constructed for temperature and residual stress simulation of a single stainless steel splat solidifying and cooling on the carbon steel substrate is presented in this paper. Simulated results show that the temperature of the splat rim is higher than that of the central part during the initial stage of solidification, and the temperature difference between the two parts reverse thereafter. The minimum residual stress locates at the rim of the top surface of the splat, and the maximum residual stress, which decreases when the substrate is preheated to a higher temperature, situates at the rim of the interface. Stresses appear as tensile stresses within the splat and compressive stresses within the substrate. The research can provide quantitative understanding of the temperature and residual stress states at the splat level.

  Info
Periodical
Advanced Materials Research (Volumes 102-104)
Edited by
Guozhong Chai, Congda Lu and Donghui Wen
Pages
719-723
DOI
10.4028/www.scientific.net/AMR.102-104.719
Citation
L. R. Zhu, H. P. Zeng, W. J. Xu, H. Y. Li, "Thermomechanical Simulation of Single Splat Solidification and Cooling in Plasma Spray Forming", Advanced Materials Research, Vols. 102-104, pp. 719-723, 2010
Online since
March 2010
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: J.C. Outeiro, Domenico Umbrello, Rachid M'Saoubi
Abstract:The reliability of a mechanical component depends to a large extent on the physical state of its surface layers. This state includes the...
179
Authors: B.J. Xiao, Cheng Yong Wang, Ying Ning Hu, Yue Xian Song
Abstract:A two-dimensional orthogonal thermal-mechanical finite element model by Deform2D finite element analysis software is established in the...
590
Authors: Li Xuan Zheng, Wei Zhao, Yu Cai Zheng
Abstract:With the development of fracturing mechanics, there has been growing recognition that the research on the residual stress of heat treatment...
1444
Authors: Claire Acevedo, Jean Marie Drezet, J. P. Lefebvre, Laurent D'Alvise, A. Nussbaumer
Abstract:This paper describes the numerical analysis method used to estimate welding induced residual stresses in K-shape tubular bridge joints. The...
335
Authors: Chun Yuan Shi, Ping Zhu, Kun Zhou
Chapter 5: Materials Processing and Chemical Technologies
Abstract:Using finite element method, the residual stress distribution of TIG dressed welded toe followed by chilling treatment with different...
529