Modelling creep damage in heat affected zone in 321 stainless steel. Part II: Application to creep crack initiation simulations
| Autor: | André Pineau, M. Chabaud-Reytier, D. Poquillon, L. Allais |
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| Rok vydání: | 2001 |
| Předmět: |
Heat-affected zone
Materials science Mechanical Engineering Metallurgy Metals and Alloys Torsion (mechanics) Intergranular corrosion engineering.material Condensed Matter Physics Finite element method Cracking Creep Mechanics of Materials Stress relaxation engineering Materials Chemistry Ceramics and Composites Austenitic stainless steel |
| Zdroj: | Materials at High Temperatures. 18:82-90 |
| ISSN: | 0960-3409 |
| DOI: | 10.3184/096034001783640577 |
| Popis: | Stabilized stainless steels like AISI 321 are well known to present a serious form of intergranular cracking in the HAZ referred to as reheat cracking. The purpose of the present part is to validate the creep damage model identified using the local approach methodology on notched bar creep tests (Part I) by checking if these damage laws are able to give accurate fracture predictions. The comparison between experimental data obtained at 600°C and numerical simulations is made for five different conditions with three different simulated HAZ and on two specimen geometries including CT specimen tested under stress relaxation conditions and sharply notched thin wall tubular specimens tested in torsion (Mode II loading). Both of these specimens have not been used for the identification of the damage model coefficients. |
| Databáze: | OpenAIRE |
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