Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1577906 | Materials Science and Engineering: A | 2012 | 6 Pages |
Creep fracture of a composite based on an aluminum matrix reinforced by 4 vol.% Al4C3 was studied at temperatures of 623 and 723 K by small punch testing with a constant force. The composite was tested in state after equal channel angular pressing (ECAP) by two passes of route C as a final operation. It was found that the time to fracture was inversely proportional to the minimum deflection rate in a similar manner as the corresponding quantities in conventional creep tests. The fractured surfaces of the studied materials had largely intercrystalline character.
► Small punch tests of Al composite after equal channel angular pressing. ► Small-punch quantities can be linked to the creep damage tolerance factor. ► Creep fracture is strain controlled. ► Fracture surfaces have intercrystalline character.