Analysis of the corrosion properties of titanium screws on motorcycle modifications
August 10, 2023
Titanium fasteners are a wide range of general-purpose basic parts, including titanium bolts, Titanium Screws, titanium studs, titanium nuts, titanium tapping screws, titanium washers, titanium retaining rings, titanium pins, titanium rivets and combinations of parts and other 12 categories, are widely used in general-purpose machinery, construction machinery and the defense industry and other fields.
The quality and reliability of titanium fasteners play an important role in the work performance and structural safety of the host. Certain anti-corrosion measures will also affect the performance of the parts, for example, commonly used electroplated fasteners may appear hydrogen embrittlement; thicker Titanium Screw surface coating will affect the screw threads of the screwing, may also affect the strength of the connection. Motorcycle modification titanium screws with high specific strength, excellent corrosion resistance, good high temperature resistance, etc., in aviation, aerospace, ships, ground weaponry and other defense industry has been widely used. Titanium Alloy fasteners connectors are aircraft and ground weaponry on the typical structure, its failure damage including fastener fatigue, fatigue and corrosion fatigue at the fastening holes of the connecting plate. Under normal circumstances, titanium and titanium alloy surface can generate a layer of dense oxide film, play a role in preventing corrosion, but in harsh environments or rupture of the oxide film and the occurrence of crevice corrosion, titanium alloy corrosion resistance will be greatly reduced Motorcycle modification titanium screws have good corrosion resistance, is commonly used in the marine environment of the fastener material, itself not subject to the natural water, the marine environment and seawater at 80 ℃ below the corrosion effects. Corrosion effects. Titanium has good corrosion resistance because its surface is closely attached to a protective oxide film, once the film is damaged, in the presence of oxygen, can be instantaneous automatic repair. But in practice, when the environmental conditions change (such as the temperature rise, the increase in the concentration of a certain medium and the occurrence of contact with other corrosion-prone metals, etc.), corrosion may occur. Under coatings, pitting corrosion may occur due to rupture or failure of the coating. For the surface of the titanium alloy with passivation film, in the static or low-flow seawater due to insufficient supply of oxygen, titanium alloy surface passivation film to reduce the role of pitting corrosion may also occur.
Titanium alloy fasteners with other easy to passivate the same metal, easy to produce crevice corrosion, hydrogen embrittlement, only crevice corrosion usually occurs at high temperatures containing halogen ions in solution. Motorcycle tuning titanium screws and more inert metal combined together, will be subject to galvanic corrosion, and the greater impact of sacrificial anode or cathodic protection of hydrogen absorption caused by brittle intergranular fracture corrosion.
