Inhomogeneous deformation in INCONEL 718 during monotonic and cyclic loadings
| Autor: | F. A. Leckie, C. J. Altstetter, D. W. Worthem, Darrell F. Socie, Ian M. Robertson |
|---|---|
| Rok vydání: | 1990 |
| Předmět: |
Dislocation creep
Shearing (physics) Materials science Astrophysics::High Energy Astrophysical Phenomena Metallurgy Metals and Alloys Work hardening Condensed Matter Physics Condensed Matter::Materials Science Precipitation hardening Mechanics of Materials Grain boundary Deformation (engineering) Composite material Inconel Softening |
| Zdroj: | Metallurgical Transactions A. 21:3215-3220 |
| ISSN: | 2379-0180 0360-2133 |
| DOI: | 10.1007/bf02647316 |
| Popis: | The paper concentrates on the relation between microstructural observations of the dislocation structures and the macroscopic deformation responses of both aged and homogenized precipitate-hardened alloys at room temperature. The deformation responses are compared to the cyclic deformation response of an aged precipitate-hardened alloy. Early in the deformation, one deformation band per grain and little evidence of work hardening are observed; with increased deformation, work hardening begins, more bands nucleate, and their spacing becomes similar to that in the aged material. It is pointed out that the degree of coarseness of inhomogeneous deformation is not a result of a softening process within the bands due to precipitate shearing, but it is a function of the amount of work hardening within the bands. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|