|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Nanocomposites V: Structure-Property Relationships in Nanostructured Materials
||Multilayered Metallic Glass-crystalline Nanocomposites with Improved Wear Resistance
||Mohammad Abboud, Zafer Artvin, Amir Motallebzadeh, Sezer Özerinç
|On-Site Speaker (Planned)
Metallic glasses possess high hardness and large elastic limits, making them promising materials as wear resistant coatings. However, their limited plasticity resulting in brittle fracture is a major drawback for their potential use in applications. Nanolayered crystalline-metallic glass nanocomposites offer improved ductility with comparable strength, but their wear behavior have not been analyzed so far. We investigated the wear resistance of a model system, amorphous CuZr-crystalline Zr multilayered coatings. 1 um-thick coatings were sputtered on stainless steel substrates with 10–100 nm layer thicknesses. Wear resistance was quantified by microscratch experiments. At a layer thickness of 10 nm, amorphous and crystalline layers co-deform plastically. This results in high ductility and high hardness, a desirable combination for high wear resistance. Findings show that layered metallic glass nanocomposites offer a wide design space for the development of effective wear resistant coatings.
||Planned: Supplemental Proceedings volume