Figure 17. Microstructure of specimen A with a crack initiated on surface

From

Analysis of Reasons of Steam Turbogenerator Failure

František Trebuňa, František Šimčák, Marián Buršák, Miroslav Pástor

American Journal of Mechanical Engineering. 2015, 3(6), 267-271 doi:10.12691/ajme-3-6-23