Standard Test Method for Determining the High Stress Abrasion Resistance of Hard Materials

Importancia y uso:

5.1 The extraction of minerals from the Earth’s crust usually requires fracturing rock with tools made from metals, which have been clad, overlaid, or coated in some fashion with high hardness or wear-resistant materials, or both. Drilling, crushing, and moving rock involves high-stress abrasion on the surfaces that contact the rock. The stresses are high enough to crush or fracture the rock. This test method simulates this condition, and it is used to screen new materials for these types of applications. It can also be used as a quality control tool for materials destined for high-stress abrasion applications: slurry pumps, comminution equipment, recycling choppers, demolition equipment, etc.

5.2 Most abrasion tests use low-stress abrasion. The abrasive stays relatively intact during testing. High-stress abrasion simulates applications where the force between an abrasive substance and a tool/component will be high enough to crush the abrasive. If this describes an application under study, then this may be an appropriate test method to use.

Subcomité:

G02.30

Volúmen:

03.02

Número ICS:

77.160 (Powder metallurgy)

Palabras clave:

abrasion; abrasion testing; cemented carbides; ceramics; high-stress abrasion; slurry;