| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2012: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2011: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2010: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
|
|---|
| Research Abstract |
This research aimed at realization of a safe railroad. Since simultaneously with the information on a crystalline lattice, X-ray diffraction method can also enables us to evaluate residual stress, this research paid its attention to the X-ray diffraction method. The purpose of this research is to develop newly the compact apparatus for determining residual stress which can be used on-site. The other purposeof this research is to investe the actual condition of the damage in rails in service.As a result, it was found that the Debye ring from a rail was measurable in about 2 minutes by back reflection. It was also found that it became possible to observe visually a part of texture structure state developed in a rail by a plastic flow. Simultaneously, evaluation of residual stress was obtained from the Debye ring too.
|
