Authors:
Tomas Berglund (MTC Powder Solutions, Sweden)
Tomas Berglund (MTC Powder Solutions, Sweden)
Abstract:
The abrasive wear resistance of two Powder Metallurgical and one conventional tool steel as well as one Metal Matrix Composite have been investigated. The alloys have been tested in low and high stress abrasion testing. The results show that wear resistance depends on several factors. Which is the most critical, depends on the acting wear mechanism. In low stress abrasion carbide content appears to be the most critical factor. Hardness also plays an important role for the steels. For the MMC material the result clearly shows that a single pass testing per standard is not sufficient to get a representative result. In high stress and abrasion the situation is more complex and the relation between properties, microstructure and wear resistance is more difficult to establish. The formation of a pronounced tribolayer may skew results in favor of some materials. PM HIP offers possibilities to manufacture unique materials that are very difficult or even impossible to manufacture using conventional metallurgy. This study highlights the importance of proper alloy and hard phase selection to achieve a material with excellent wear resistance.
DOI:
https://doi.org/10.59499/EP256767855
