Abstract
The ultimate objective of this research project is to develop creep damage constitutive equations for low Cr-Mo alloy and its weldment under low stress (0.2-0.4 yield stress, Oy ). This paper summarizes a critical analysis on the cavity nucleation and growth and the deformation mechanisms and creep damage evolution characteristics at low stress with temperature ranging from 450 °C to 650 °C, in order to firmly establish the physical base for the theoretical constitutive modeling work. Moreover, it covers the influence of the stress level on the development of cavity nucleation and growth, leading to the final rupture, and proposes and discusses a new idea for failure criterion to be used in the constitutive equations under uniaxial stress state. This paper contributes to knowledge and the development of methodology
| Original language | English |
|---|---|
| Title of host publication | 6th International ‘HIDA’ Conference |
| Subtitle of host publication | Life/Defect Assessment & Failures in High Temperature Plant |
| Editors | A. Shibli |
| Publisher | ETD Ltd, UK |
| Publication status | Published - 2013 |
| Event | 6th International High-temperature Defect Assessment (HIDA) Conference: Life/Defect Assessment & Failures in High Temperature Plant - Crown Plaza ANA Hotel, Glover Hill, Nagasaki, Japan Duration: 2 Dec 2013 → 4 Dec 2013 Conference number: 6 http://www.etd-consulting.com/forthcoming-events-2/2013/12/2/6th-international-hida-conference https://static1.squarespace.com/static/5304e62de4b00674c06afd5c/t/55101750e4b0f7f604b1e2bb/1427117904133/Contents.pdf |
Conference
| Conference | 6th International High-temperature Defect Assessment (HIDA) Conference |
|---|---|
| Abbreviated title | HIDA-6 |
| Country/Territory | Japan |
| City | Nagasaki |
| Period | 2/12/13 → 4/12/13 |
| Internet address |