Surface Treatments of Titanium Alloy for Preparing Laminated Composite Material

Abstract

In this investigation surface treatment of titanium alloy VT20 is carried out by phosphating and anodization in order to increase the adhesive bond strength. The surfaces were characterized using scanning electron microscopy (SEM), X-ray diffraction (XRD), profilometry, contact angle measurements. The joined titanium specimens were shear tested before and after exposure to high humidity to a period of three months.

Effect of scanning speeds on electrochemical corrosion resistance of laser cladding TC4 alloy

“…Generally, there are some surface treatment methods of titanium alloy, such as electroplating, electroless plating, surface oxidation treatment, [4] and so on; however, there are some shortcomings, such as complex technology, high cost, and the electrolytes that are not friendly to the environment. [5][6][7][8] On the contrary, laser cladding technology, as a new material surface modification and parts processing technology, has short preparation time and stable quality, and could improve the wear-resisting, corrosion resistant, heat resistant, antioxidant, and other properties of coating surface; it can also eliminate the problem of possible cracks caused by thermal effects. [9][10][11] The laser cladding technology of titanium alloy surface is quite mature.…”