Electrochemical Corrosion Behaviors Before and After Laser Polishing of Additive Manufactured TC4 Titanium Alloy

2020 ◽  
Vol 47 (1) ◽  
pp. 0102003
Author(s):  
廖聪豪 Liao Conghao ◽  
周静 Zhou Jing ◽  
沈洪 Shen Hong
Keyword(s):  
Titanium Alloy ◽  
Electrochemical Corrosion ◽  
Laser Polishing ◽  
Tc4 Titanium Alloy ◽  
Before And After ◽  
Corrosion Behaviors

Study on the Corrosion Behaviors of MAO Coated on TC4 Titanium Alloy

2012 ◽  
Vol 518-523 ◽  
pp. 632-636
Author(s):  
Jian Jun Xi ◽  
Jun Zhao
Keyword(s):  
Dielectric Constant ◽  
Corrosion Resistance ◽  
Titanium Alloy ◽  
Ac Impedance ◽  
Compact Layer ◽  
Soaking Time ◽  
Tc4 Titanium Alloy ◽  
Pore Area ◽  
Corrosion Behaviors ◽  
Loose Layer

This paper provides the method of calculating the film pore area and comparing the density of the looser and compact layer by AC impedance, then to compare the corrosion resistance of the film by comparing the pore area and the dielectric constant. The resistance of the film decreases fellow the soaking time extending, the capacitance of the loose and compact layer increases with the soaking time extending. The capacitance of the compact layer is smaller than that of the loose layer.

Study on the Experiment Laser Cladding and Shock Processing TC4 Titanium Alloy

2012 ◽  
Vol 538-541 ◽  
pp. 1823-1827
Author(s):  
Cheng Wang ◽  
Lei Zhou ◽  
Zhi Lin Lai ◽  
Zhi Bin An ◽  
Liu Cheng Zhou
Keyword(s):  
Titanium Alloy ◽  
Laser Cladding ◽  
Fatigue Tests ◽  
Fatigue Properties ◽  
Surface Residual Stress ◽  
Treatment Technology ◽  
Laser Shock Processing ◽  
Tc4 Titanium Alloy ◽  
Before And After ◽  
Shock Processing

In order to study the application of laser cladding and laser shock processing (LSP) combinatorial treatment technology, the laser cladding samples of TC4 titanium alloy was shocked by pulse laser, then the surface residual stress, the fatigue life were compared with those without LSP in this paper. High cycle tension-compression fatigue tests were carried out in laser cladding titanium alloy before and after LSP treated. The results indicate that LSP treatment can improve the high cycle fatigue endurance limit of laser cladding titanium alloy effectively. The nano-crystal grained surface layer with residual compressive stress makes great contributions to the improvement in fatigue properties of titanium alloy.

Study on Surface Structure and Properties of Titanium Alloy Modified by Ion Nitriding

2020 ◽  
Vol 1005 ◽  
pp. 24-28
Author(s):  
Yong Liu ◽  
Xing Sheng Lao ◽  
Chun Hui Dai ◽  
Shi Wei Yao
Keyword(s):  
Titanium Alloy ◽  
Friction Pair ◽  
Surface Hardness ◽  
Structure And Properties ◽  
Friction Test ◽  
Ion Nitriding ◽  
Frictional Properties ◽  
Tc4 Titanium Alloy ◽  
Before And After ◽  
The Coefficient Of Friction

TC4 titanium alloy was treated by ion nitriding. The structure of nitriding layer was analyzed by scanning electron microscopy. The depth and microhardness of nitriding layer were measured. The frictional properties of titanium alloy before and after nitriding were compared by friction test. The results show that the ion nitriding technology can form a stable nitriding layer with a depth of up to 20μm and a surface hardness of 560 HV0.2. At the same time, after nitriding, the wear resistance of the titanium alloy surface is improved. And the coefficient of friction between the friction pair is reduced.

Interaction between Sodium Molybdate and FSWed Wled of 5083 Effected by Time

2013 ◽  
Vol 699 ◽  
pp. 645-649
Author(s):  
Chang Bin Shen
Keyword(s):  
Inhibition Efficiency ◽  
Electrochemical Impedance ◽  
Electrochemical Corrosion ◽  
Sodium Molybdate ◽  
Impedance Spectra ◽  
Electrochemical Impedance Spectra ◽  
Friction Stir ◽  
Base Materials ◽  
Corrosion Behaviors ◽  
5083 Aluminum Alloy

Similar welds composed of 5083 were produced by friction stir welding. In the solution of 0.2 M NaHSO3 and 0.6 M NaCl, with the addition of a given concentration sodium molybdate as the inhibitor, the electrochemical corrosion behaviors of the friction stir welds (FSW) and 5083 were comparatively investigated by potentiodynamic polarization curve tests and electrochemical impedance spectra (EIS) at the ambient temperature for different test periods. The results indicated that : with the extension of period, the inhibition efficiencies (IE) for both the weld and 5083 base materials enhanced, at the same period, the inhibition efficiency (IE) for the weld was beyond that for 5083 base materials, sodium molybdate may be thought of as an effective inhibitor for 5083 aluminum alloy, the interaction between inhibitor and weld is stronger than that between inhibitor and base materials.

scholarly journals Microstructure and Properties of Low Cost TC4 Titanium Alloy Plate

2016 ◽  
Vol 67 ◽  
pp. 05025
Author(s):  
Qiuyuan Feng ◽  
Lei Zhang ◽  
Hong Pang ◽  
PingHui Zhang ◽  
Xuewen Tong ◽  
...  
Keyword(s):  
Titanium Alloy ◽  
Low Cost ◽  
Alloy Plate ◽  
Microstructure And Properties ◽  
Tc4 Titanium Alloy ◽  
Titanium Alloy Plate
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