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论文类型：期刊论文

发表时间：2014-07-01

发表刊物：16th International Conference on Fusion Reactor Materials (ICFRM-16)

收录刊物：SCIE、EI、CPCI-S、Scopus

卷号：66

期号：1

页面范围：163-170

ISSN号：1536-1055

关键字：plasma-facing components; thermo-mechanical analysis; finite element method

摘要：Tungsten and CuCrZr alloy have been considered as the potential candidates for armor and heat sinking materials of plasma-facing components (PFCs) because of their attractive mechanical, 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 nonhomogeneous temperature distribution in PFCs, one of the crucial issues is the generation of thermal stresses in W/CuCrZr PFCs on cooling either during fabrication or during operation of a fusion reactor. In the current work, the thermo-mechanical analysis of W/Cu-alloy joints, where a compliant OFHC-Cu with different thickness was used as an interlayer, was carried out by using finite element method (FEM) under various conditions including the fabrication process and steady and transient operation.