Lubrication gradient material (LGM) and its process on tungsten carbon was developed,and the wire rod mill rollers of the LGM were served in metallurgy industry.

• 在钴基碳化钨硬质合金基体上研制了一种润滑耐磨梯度材料LGM硬质合金及制造工艺,已成功应用于高速线材轧机的辊环。