Feng Ce, Tang GuoZhang, Wang XinYue, Wang YanLi, Yang HaiLi. Effect of Current Density on Boriding on TC4 Titanium Alloy by Molten Salt Electrolysis[J]. IRON STEEL VANADIUM TITANIUM, 2016, 37(3): 48-51. doi: 10.7513/j.issn.1004-7638.2016.03.009
Citation:
Feng Ce, Tang GuoZhang, Wang XinYue, Wang YanLi, Yang HaiLi. Effect of Current Density on Boriding on TC4 Titanium Alloy by Molten Salt Electrolysis[J]. IRON STEEL VANADIUM TITANIUM, 2016, 37(3): 48-51. doi: 10.7513/j.issn.1004-7638.2016.03.009
Feng Ce, Tang GuoZhang, Wang XinYue, Wang YanLi, Yang HaiLi. Effect of Current Density on Boriding on TC4 Titanium Alloy by Molten Salt Electrolysis[J]. IRON STEEL VANADIUM TITANIUM, 2016, 37(3): 48-51. doi: 10.7513/j.issn.1004-7638.2016.03.009
Citation:
Feng Ce, Tang GuoZhang, Wang XinYue, Wang YanLi, Yang HaiLi. Effect of Current Density on Boriding on TC4 Titanium Alloy by Molten Salt Electrolysis[J]. IRON STEEL VANADIUM TITANIUM, 2016, 37(3): 48-51. doi: 10.7513/j.issn.1004-7638.2016.03.009
Key Laboratory of Modern Metallurgy Technology, Ministry of Education, College of Metallurgy and Energy, North China University of Science and Technology, Tangshan 063009, Hebei, China
Received Date: 2015-10-25 Available Online:
2023-12-04
TC4 titanium alloy was borided by molten salt electrolysis.The effect of current density on the thickness,composition,microstructure,phase and hardness of borided layer was studied by glow discharge optical emission spectroscopy(GDOES),scanning electron microscopy(SEM),X-ray diffraction(XRD)and microhardness tester.The results show that,with current density increasing from 50 to 90 mA/cm2,the grain size of borided layer gradually becomes smaller,and the thickness of borided layer increases first and then decreases.When the current density is 60 mA/cm2,the thickness of borided layer reaches the maximum.The borided layer does not contain Al,and V dissolves in the borides to form solid solution.The borided layer consists of TiB and TiB2 with preferred orientation of(111) lattice plane.The microhardness of the borided layer is increased by 5 times than that of the matrix.
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