| Autor: |
Nizery Erembert, Buffiere Jean-Yves, Proudhon Henry, Daniélou Armelle, Forest Samuel |
| Jazyk: |
English<br />French |
| Rok vydání: |
2014 |
| Předmět: |
|
| Zdroj: |
MATEC Web of Conferences, Vol 12, p 07003 (2014) |
| Druh dokumentu: |
article |
| ISSN: |
2261-236X |
| DOI: |
10.1051/matecconf/20141207003 |
| Popis: |
Fatigue crack initiation at particles is studied in hot rolled 2050-T8 and 7050-T7451 material, using 1 to 4 mm cross section specimens. Both size and aspect ratio of particles are observed to affect their probability of being damaged. In 2050-T8 material, the probability that a matrix crack initiate at a cracked particle increases with its size, and no effect of aspect ratio is observed. In 2050-T8 specimens, matrix cracks initiate at both precracked (Al, Cu, Fe, Mn) particles and particles cracked during cycling. Initiation in 7050-T74 specimens occur on Mg2Si particles which may be cracked or debonded, and Al7Cu2Fe particles that are cracked during cyclic loading. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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