Research on Hot Forging Processing and Microstructure Properties of Tungsten Infiltrated Copper Composite Materials
[Purposes]This paper aims to address the abnormal growth of tungsten grains and defects such as pores in tungsten infiltrated copper composite materials,and to improve the mechanical proper-ties of tungsten copper alloys.[Methods]Hot forging(HF)treatment was performed on tungsten infil-trated copper materials,and the influence of hot forging treatment on the alloy's microstructure and prop-erties was investigated.[Findings]The results showed that hot forging reduced the porosity of the tungsten-infiltrated copper composite material,resulting in a more even distribution of tungsten and cop-per phases.The W-W interconnection decreased,and the hardness increased from 298 HV to 338 HV.The friction coefficient decreased from 0.45 to 0.28.When the hot forging temperature was 700℃,the tensile properties of the tungsten-infiltrated copper composite material were optimized,with a 48.06％increase in room temperature tensile strength and a significant improvement in high temperature tensile strength.[Conclusions]Hot forging can effectively improve the structure of tungsten infiltrated copper materials and enhance their mechanical properties.
tungsten-copper alloyhot forgingmechanical propertieshigh temperature tensile strength
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