Aluminum itself is a metal that is easily corroded. When riding a bicycle made of this material, the more times it is ridden, the higher the frequency of stress occurrence and the significant change in strength. In recent years, in order to seek lightweight, many frames have been made of thin materials (the degree of thinness has reached its limit), and their service life will be greatly affected.

Advantages of titanium alloy frame

(1) Lightweight and high-strength frames can be made using pure titanium metal, which has higher strength. Adding aluminum and vanadium to titanium metal results in higher elasticity (compared to aluminum) and is also beneficial for design

(2) Non rusting: Titanium is hardly corroded in normal environments. But it has another corrosion phenomenon, which is heterogeneous metal corrosion.

For example, when different types of alloys are bonded together, they become electrode states, and the potential difference causes local electrification and corrosion. The measure taken to address this phenomenon is to use ointments or other insulation materials (such as ointments mixed with metal powder, such as the trade name Ti Plepu, etc.). This metal powder prevents the loss of ointment and is used to prevent tight contact even after loss. It doesn't matter if this metal powder has conductivity, it will be damaged by a smaller load after contact. This phenomenon is called "sticking", which is different from "baking".

Adhesion and bite: The phenomenon of metal bonding through corrosion.

Baking bonding: The heat generated during metal processing is used to melt and bond.

(3) Good riding experience

Titanium is also used on the springs of shock absorbers. The frame made of titanium is now suitable for long-term cycling. Some drivers love titanium frames and think they have an excellent riding experience. However, individuals are different. After comparing with chromium molybdenum steel, some believe that the impact absorption and riding experience of chromium molybdenum steel frames are better than those of titanium frames (this is also related to the shape of chromium molybdenum steel frames and the increased stress caused by using thin tubes). If the processing technology of titanium pipes is further improved, they may have the same riding sensation as chromium molybdenum steel.

Some titanium frames make people feel swaying, which may be related to the use of plane tubes (pipes that are not padded and cannot change in thickness). Alternatively, it may be possible to use high-strength titanium alloys without using thin tubes.