U_3Si_2-Al燃料板拉伸力学性能试验研究  

Tensile Mechanical Properties of U3_Si_2-Al Fuel Plate

作　　者：徐勇[1] 胡华炜[1] 王习术[2] 庄红权[1] 

机构地区：[1]清华大学核能技术设计研究院,北京100084 [2]清华大学工程力学系,北京100084

出　　处：《核动力工程》2003年第3期231-235,共5页Nuclear Power Engineering

摘　　要：以U3Si2-Al弥散型燃料为芯体、铝合金6061为包壳的燃料板是研究堆的新型燃料。燃料板的机械性能是燃料组件设计中的基础数据,国内外一直未对该燃料板的机械性能进行研究。本文根据国内研究堆燃料板设计的需要,对不同芯体的燃料板在不同工艺条件下的机械性能进行了测试,同时比较了不同方向的拉伸结果。为了进一步了解燃料板的机械性能,在拉伸过程中进行反复的加载试验。考虑到燃料板延伸率偏低和它的脆断状态,还用电镜检查了拉伸断口。The fuel plate made of fuel meat, with the U3Si2-Al dispersion fuel center, and 6061 Al alloy cladding, is a new kind of fuel used in research reactors. The mechanical property data of the fuel meat is the basic data in the design of fuel group, but the mechanical property of this fuel meat has not been studied all over the world till now. In this paper, the mechanical properties of U3Si2-Al fuel meats of different sizes used in research reactors are investigated and analyzed, and at the same time the carrying capacity of tensile in different directions are also compared. In order to get more knowledge about the mechanical properties of the fuel meat, the tensile experiment has been carried out repeatedly. Considering the lower ratio of elongation and the brittleness, the microscope has been used to examine the zone of fracture after tensile test.

关 键 词：U3Si2-Al燃料板 拉伸试验 力学特性 

分 类 号：O346.1[理学—固体力学] TB301[理学—力学]