抄録
The behavior of plastic deformation was analyzed in terms of the texture development under the running surface of Shinkansen line rails which differs depending on the accumulated service tonnage. The results were discussed in comparison with those of rolling contact fatigue tests.
It was found that the texture development under the running surface of Shinkansen line rail was similar to that in the test-piece tested under the condition of slip ratio 0% and maximum Hertz pressure about 0.9GPa. A texture appeard with an increase in accumulated service tonnage. However, the X-ray half value breadth did not change. This proves that the examination of texture development is useful to detect the rolling contact fatigue damage.
