ABSTRACT
High-speed wheel steel suffers from recycling and alternative stress in its service life, leading to fatigue destruction. Especially with the dramatic rise of speed of rail train, fatigue destruction plays a vital role in wheel destruction. In order to meet the demand of the development of high-speed rail train, high-quality wheel steel is required to have excellent fatigue performance, which mostly depends on T[O] content of wheel steel. That is to say, ultra-low oxygen content is the major feature for high-speed wheel steel.
