Determination of the tensile properties of specimens with small dimensions
Merjenje trdnostnih lastnosti s preizkušanci malih dimenzij

english

1999

volume 33, issue 6

Inštitut za kovinske materiale in tehnologije

In practice it happens that not enough material is available in order to extract standard tensile specimens. This is especially the case when welded joints like laser weld or explosive cladded joints have to be characterized. Similar problems appear in cade of failures of components where not enough material for investigation is available. Up to now indirect solutions were used. Yield strength and tensile strength were obtained by conversion calculations of measured hardness profiles. This conversions contain errors. Furthermore, important information concerning the deformation behaviour is lost. In this contribution the test technique of mini flat tensile specimens with measuring area of 1 mm is discussed, from the extracting process on up to measuring the elongation directly on the specimen. The dicussed testing device is protected by Patent DE 197 44 104 A1 and Patr. Reg. No. 9800255 SLO.

16.09.2009