Apart from the cost factor, what are the main difficulties in the application of carbon fiber materials in automobile parts?

Generally speaking, carbon fiber has high modulus and axial strength, no creep, good fatigue resistance, specific heat and conductivity between nonmetal and metal, small thermal expansion coefficient, good corrosion resistance, low fiber density and good X-ray permeability. But carbon fiber has poor impact resistance and is easy to be damaged. It will be oxidized under the action of strong acid, and metal carbonization, carburization and electrochemical corrosion will occur when it is combined with metal.

But in addition to these, auto companies are gradually adopting them. Although the cost is high, with the progress of science and technology, it is believed that it will gradually replace traditional materials.