1. But the study on the rolling contact fatigue failure mechanism of super hard material coati-ngs is in grope.

2. The characteristics of wheel - rail rolling contact fatigue and causes of induced fatigue were reviewed.

3. The rolling contact fatigue performance of ceramic balls with fine compact equal-axis grain and fewer glass phase exceeds that of those with slightness-needle grain and more glass phase.

3. try its best to collect and make good sentences.

4. Rolling contact problem was handled by increment constraint method with tire tire and roadway developed.

5. The result shows that rolling contact fatigue failures caused swap block defects of rail.

6. Their point of tangency is called the pitch point, and since it lies on the line of centers, it is the only point at which the tooth profiles have pure rolling contact.

7. The harmonic variation of the normal contact pressure or the maximum Hertzian pressure results in a wavy rolling contact surface profile.

8. The contact geometry parameters and rigid creepages of wheelset and track in rolling contact are analyzed.

9. These materials are suitable for fabrication of the cage of rolling contact bearings.

10. So, it is very significant to improve and develop a new rolling contact fatigue tester.