The 3D printing department and Xi 'an Jiaotong University carried out molybdenum rhenium alloy test

Recently, the 3D printing department of the company and Xi 'an Jiaotong University carried out molybdenum rhenium alloy test. Refractory metal molybdenum has the characteristics of high melting point, excellent mechanical properties at high temperature, good thermal conductivity, and its good anti-radiation swelling ability and liquid metal compatibility, making it an important candidate material for the fourth generation of high temperature nuclear fission reactor, fusion reactor and other advanced nuclear reactor, to meet the requirements of high temperature, strong corrosion, large dose radiation and other harsh environment of the preparation of structural parts. However, the inherent brittleness at room temperature, difficulty in processing and poor weldability of molybdenum severely limit its application and popularization. The addition of rhenium to molybdenum, forming the "rhenium effect", can not only significantly improve the room temperature plasticity and machining properties of molybdenum, reduce the tough-brittle transition temperature, but also improve the welding performance and creep resistance of molybdenum, so it has become a research hotspot of advanced nuclear reactor structural materials. In this experiment, Sailong Y150 equipment was used to make full use of the characteristics of the powder bed electron beam selective melting energy efficiency, low reflectivity and no pollution in vacuum environment. The material forming process was initially explored and molybdenum rhenium alloy sample blocks were prepared. (3D Printing  Department of Guangzhou Sailong /Zheng Kaibiao)