Concentrating on the problem that the existing track shoes are vulnerable to rapid wear and tear caused early failure
in this paper
25CrMnB is used as the comparative steel
added 0. 08%
0. 12% and 0. 16% vanadium respectively
smelted and cast into 50 kg steel ingots in a laboratory using a 150 kg medium frequency vacuum induction furnace. The steel ingot is heated by a box type electric resistance furnace and rolled into a flat steel of 12 mm thickness. The effects of different vanadium contents on the wear resistance is studied by wear resistance test and precipitation phase analysis. The results show that
with increasing vanadium content in the steel
the amount of vanadium precipitates increases
and the hardness as well as wear resistance of the test steel are significantly improved. When the vanadium content in the steel increases from 0.004% to 0.16%
the HRC hardness value of the test steel increased from 36.5 to 43.5
compared with 25CrMnB steel
and the relative abrasion rate decreases from 100% to 88.2%
and the relative abrasion rate decreased by 11.8%.