Formation of a disordered region at the grain boundary during migration with He atoms

• 来源期刊: 中国科学:物理学 力学 天文学（英文版）
• 年，卷（期）: 2017,（4）
• 页码范围: 78-81
• 页数: 4页
• 语种: 中文
• DOI: 10.1007/s11433-016-0424-9

摘要

W is considered a potential candidate as a plasma facing material for future nuclear fusion devices because of its high melting point,low sputtering rate,and low H or He solubility [1-3].In a fusion environment,W will be in direct contact with heat flux,H/He particle fluxes,and the irradiation of high-energy neutrons,causing several defects to be generated,which decrease the service life of W materials.