Paper Title:
Numerical Analysis of Thermally-Induced Residual Stresses in Plasma Facing Components for Fusion Reactor
  Abstract

The realization of a fusion reactor is critically dependent on the successful development of high performance materials. Especially, the plasma facing components (PFCs) which basically consist of a direct plasma facing armor material and a heat sinking material. Tungsten (W) and Copper-alloy (CuCrZr) have been considered as the potential candidates for armor materials and heat sinking materials, respectively, due to their attractive nuclear and physical properties. However, due to the incompatibility of the coefficient of thermal expansion and the elastic properties between the W and the Cu-alloy as well as the non-homogeneous temperature distribution in PFCs, one of the crucial issues is the generation of thermally-induced residual stresses in W/CuCrZr PFC on cooling either during fabrication or during operation of fusion reactor. Therefore, the thermo-mechanical response of PFCs under high heat flux from the fusion reactor is a critical issue for the development of fusion technology. In the present work, in order to optimize the thermal and mechanical integrity of PFCs, thermally-induced residual stresses in W/CuCrZr PFCs with a compliant interlayer (OFHC-Cu: Oxygen Free High Conductivity Copper) are analyzed numerically by means of finite element method. Result indicated that the use of interlayer in PFCs could significantly reduce the magnitude and the concentration of thermally-induced stresses in comparison to the PFCs without interlayer. And also the optimum thickness for interlayer was suggested based on the current analysis conditions.

  Info
Periodical
Advanced Materials Research (Volumes 189-193)
Edited by
Zhengyi Jiang, Shanqing Li, Jianmin Zeng, Xiaoping Liao and Daoguo Yang
Pages
1614-1620
DOI
10.4028/www.scientific.net/AMR.189-193.1614
Citation
J. J. Sha, X. N. Hao, J. Wang, X. W. Gao, "Numerical Analysis of Thermally-Induced Residual Stresses in Plasma Facing Components for Fusion Reactor", Advanced Materials Research, Vols. 189-193, pp. 1614-1620, 2011
Online since
February 2011
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: Min Yang, Zeng Da Zou, Si Li Song, Xin Hong Wang
Abstract:In this study, Si3N4 was bonded to Inconel600 with Nb/Cu/Ni interlayer by partial liquid phase diffusion bonding method under vacuum...
2435
Authors: Xian Cheng Zhang, Bin Shi Xu, Hai Dou Wang, Yi Xiong Wu
Abstract:The effect of NiCoCrAlYx-ZrO2 (1-x) interlayer on the residual stresses in the ZrO2/NiCoCrAlY thermal barrier coating due to thermal cycling...
1318
Authors: Xian Cheng Zhang, Bin Shi Xu, Hai Dou Wang, Yi Xiong Wu
Abstract:The purpose of the present paper was to investigate the effect of interlayer on the maximum contact stresses in the critical regions in a...
1576
Authors: Jian Jun Sha, Jing Wang, Xiao Wei Gao
Abstract:Thermo-mechanical analysis for W/Cu-alloy joints with different interlayer thickness of OFHC-Cu was carried out by FEM calculation. The...
595
Authors: A.L. Mohd Tobi, M.A. Harimon, A.A. Saad, R.M. Karim
Abstract:The fretting wear of coated SCMV (high-strength alloy steel) substrate with interlayer is studied with the focus on stresses associated with...
909