Abstract:Applying different metallurgical tantalum powder as raw materials, tantalum wires with the same specifications were prepared by same processing process. It is confirmed that tantalum wires for vapor deposition must be prepared by metallurgical tantalum powder based on the analysis results of mechanical properties, anti-oxygen brittleness, anti-hydrogen brittleness, and surface quality of tantalum wire products. Tensile strength of tantalum wire can be improved by increasing processing rate.