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Projects / Programmes
Investigation of structural brittleness in two phase stainless casting alloys
Research activity
| Code | Science | Field | Subfield |
|---|---|---|---|
| 2.04.02 | Engineering sciences and technologies | Materials science and technology | Metallic materials |
| Code | Science | Field |
|---|---|---|
| T150 | Technological sciences | Material technology |
Keywords
two-phase stainless steel cast alloy, spinodal decomposition, notch toughness, hardness, delta ferrite micromorphology
Evaluation
(metodology)
Citations
Citations for bibliographic records in COBIB.SI that are linked to records in citation databases
Organisations (2) , Researchers (11)
0206 Institute of Metals and Technology
| no. | Code | Name and surname | Research area | Role | Period | No. of publicationsNo. of publications |
|---|---|---|---|---|---|---|
| 1. | 08236 | Materials science and technology | Researcher | 2002 - 2004 | 225 | |
| 2. | 00741 | Materials science and technology | Researcher | 2002 - 2004 | 160 | |
| 3. | 17161 | Materials science and technology | Researcher | 2002 - 2004 | 285 | |
| 4. | 04982 | Materials science and technology | Researcher | 2002 - 2004 | 421 | |
| 5. | 21523 | Materials science and technology | Researcher | 2002 - 2004 | 192 | |
| 6. | 13026 | Manufacturing technologies and systems | Researcher | 2002 - 2004 | 353 | |
| 7. | 08195 | Materials science and technology | Head | 2002 - 2004 | 412 | |
| 8. | 09788 | Civil engineering | Researcher | 2002 - 2004 | 630 |
1555 University of Ljubljana, Faculty of Natural Sciences and Engeneering
| no. | Code | Name and surname | Research area | Role | Period | No. of publicationsNo. of publications |
|---|---|---|---|---|---|---|
| 1. | 11624 | Materials science and technology | Researcher | 2002 - 2004 | 996 | |
| 2. | 00050 | Materials science and technology | Researcher | 2002 - 2004 | 851 | |
| 3. | 21315 | Physics | Researcher | 2002 - 2004 | 45 |
Abstract
Delta ferrite is part of the microstructure of two-phases stainless Fe-Cr-Ni cast alloys and austenitic stainless 18/8 welds. By a temperature below appr. 500 grades C coherent intermetallic particles precipitate from the solid solution in deltha ferrite, while below appr. 400 grades C its spinodal decomposition occurs. Both reactions produce internal elastic stresses, increase the hardness and strongly decrease the notch toughness of the cast alloy. The goal of this investigation is to establish the connection between the content and the distribution of delta ferrite in the cast alloy, to determine the kinetics of the spinodal decomposition at appr. 300 grades C and to determine its effect on notch toughness.