Volume 42 Issue 4
Aug.  2021
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Ma Lige, Li Xiansheng. Effect of vanadium microalloying on properties of steel for automobile parts[J]. IRON STEEL VANADIUM TITANIUM, 2021, 42(4): 68-72. doi: 10.7513/j.issn.1004-7638.2021.04.012
Citation: Ma Lige, Li Xiansheng. Effect of vanadium microalloying on properties of steel for automobile parts[J]. IRON STEEL VANADIUM TITANIUM, 2021, 42(4): 68-72. doi: 10.7513/j.issn.1004-7638.2021.04.012

Effect of vanadium microalloying on properties of steel for automobile parts

doi: 10.7513/j.issn.1004-7638.2021.04.012
  • Received Date: 2021-01-25
  • Publish Date: 2021-08-10
  • Vanadium microalloyed steel 42CrMoVx (x=0, 0.1, 0.3, 0.5, 0.7, 0.9) for automobile parts was prepared. The effects of vanadium microalloying on tensile strength, wear resistance and corrosion resistance of the steel were analyzed. The results show that the tensile strength, wear resistance and corrosion resistance of 42CrMo steel for automobile parts are improved obviously by vanadium microalloying. With the increase of vanadium content, the tensile strength, wear resistance and corrosion resistance of the steel increase first and then decrease. Compared with 42CrMo without vanadium, the tensile strength, yield strength and elongation after fracture of 42CrMoV0.5 steel increase by 66 MPa, 67 MPa and 3.5% respectively, while the wear volume and corrosion current of 42CrMoV0.5 steel separately decrease by 18×10−3 mm3 and 0.771 mA/cm2, with the corrosion potential positively shifted by 88 mV. The vanadium content in 42CrMoV steel used for auto parts is preferred to be 0.5%.
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