Abstract: | We took flat samples CT model, with siding cut, from stainless steel mark 10TiNiCr175. They were solicited at axial fatigue of eccentric extension, with the asymmetry coefficient R= 0.1. The samples were tested at the environment temperature (T=293K), namely at low temperatures, T= 253K and T= 213K. During the testing were retained the length variation of the fracture crack a and the numbers of corresponding cycles N. For the same coefficient asymmetry coefficient R= 0.1, at the three testing temperatures: T= 293 K, T= 253 K and T= 213 K, we have determined the stress intensity factor noted through ?K, the growth rate of the fracture crack da/dN, parameters necessary to the establishment of the stress field ? from the area of the defect's top. |
