ISO 5754:2017 download.Sintered metal materials , excluding hardmetals-Unnotched impact tes lee.
1 Scope
ISO 5754 specifies the dimensions of an unnotched impact test piece of sintered metal materials. The test piece may be obtained directly by pressing and sintering or by machining a sintered part.
ISO 5754 applies to all sintered metals and alloys, with the exception of hardmetals. However, for certain materials (for example, materials with low porosity or materials with high ductility), it may be more appropriate to use a notched test piece which, in this case, will give results with less scatter. (In this case, refer to ISO 148-1.)
NOTE For porous sintered materials, the results obtained from impact tests are not necessarily very accurate compared with results obtained from tests on solid metals.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of ISO 5754. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (Including any amendments) applies.
ISO 148-1, Metallic materials — Charpy pendulum impact test — Part 1: Test method
3 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
4 Dimensions of test piece
The dimensions of the test piece shall be those shown in Figure 1 .
The test piece shall be marked in such a way that the direction of pressing may be identified.
The impact test shall be carried out on a Charpy impact testing machine, in accordance with Iso 148-1.
Unless otherwise specified, the direction of impact shall be normal to the pressing direction.