Research Progress in Selective Laser Melting of Refractory Metals
In recent years,refractory metals have been progressively researched and traditional processes have difficulty in meeting the demands of preparing refractory metals with complex structures.Given the high melting points and excellent high-temperature mechanical properties of refractory metal materials,combining them with selective laser melting technology will provide greater scope and processability for the design of refractory metals.The selective laser melting technology for refractory metal materials was summarized,and tungsten alloys,porous tantalum and molybdenum alloys as well as refractory high entropy alloys were reviewed according to material classification.As the process of selective laser melting of refractory metals is sensitive to alloy composition and processing parameters,the influence of these factors on process control and part quality was summarized.Finally,the strengths and weaknesses of the current research were summarized,and future trends were outlined.
refractory metalselective laser meltingtungsten alloyporous tantalumrefractory high entropy alloy