| Номер документа в системі: | 202018 |
| Автор: | Ireneusz Telejko, Henryk Adrian, Bogdan Guzik |
| Назва документа: | High temperature brittleness of cast alloys |
| УДК | 669.018.2:620.163.4 |
| Мова документу | Англійська |
| Аннотація | Over-all mechanical properties of alloys are extremely low at the last stage of solidification
where alloy exists at brittle temperature range (BTR). When the solidification process is completed a sudden and marked change in strength and ductility of metal is observed. It means that as long as liquid phase is present, metal will fail in a brittle manner. There are known different theories of brittleness of alloys in existence of liquid phase. The idea involved by authors of the paper is as follows: three major factors caused by presence of liquid may be taken into account:
- decreasing the energy needed for crack nucleation;
- increasing atomic diffusional flux out of the crack tip;
- creating a path for abnormally quick diffusion of atoms from the crack tip. |
| Кількість сторінок | С. 132-137. |