ISO 5754:2017 烧结金属材料（不包括硬质合金） 无切口冲击试件

标准编号：ISO 5754:2017

中文名称：烧结金属材料（不包括硬质合金） 无切口冲击试件

英文名称：Sintered metal materials, excluding hardmetals — Unnotched impact test piece

发布日期：2017-09

标准范围

ISO 5754规定了烧结金属材料无缺口冲击试样的尺寸。可通过压制和烧结或加工烧结零件直接获得试样。ISO 5754适用于所有烧结金属和合金，硬质合金除外。然而，对于某些材料（例如，孔隙率低的材料或延展性高的材料），可能更适合使用缺口试件，在这种情况下，缺口试件的结果分散性较小。（在这种情况下，请参考ISO 148-1。)注:对于多孔烧结材料，与固体金属试验结果相比，冲击试验结果不一定非常准确。

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.

标准预览图