Nanoprecipitation of oxide particles and related high strength in oxide-dispersion-strengthened iron–aluminium–chromium intermetallics

Mechanical Characterization of PM2000 Oxide‐Dispersion‐Strengthened Alloy by High Temperature Nanoindentation

“…The two different deformation regimes have been identified also in the literature for other ODS alloys . Since the grains in the PM2000 are stable, the pronounced decrease in the hardness at 400 °C is not observed due to grain growth and the corresponding Hall–Petch relationship.…”

“…Normally, the yield stress in fine grain materials drops precipitously at high temperatures close to half of the melting temperature due to re‐crystallization and grain growth. The transition temperature of the yield stress drop is investigated in more detail in refs . Schneibel et al .…”

“…Above 400 °C, the absorption of dislocations at the grain boundaries is thermally activated and the yield strength is dropping . Morris et al . examined mechanical properties of several FeAlCr ODS alloys up to 800 °C and also report on high strength from room temperature up to 500 °C and then, a steady loss of strength at higher temperatures.…”

Effect of Thermo-Mechanical Treatment on the Microstructure and Tensile Properties of the Fe-22Cr-5Al-0.1Y Alloy

“…In addition, these Y-Al-O oxides were smaller than Al 2 O 3 oxides [ 10 , 50 ] and more useful in improving the mechanical properties of alloys. These Y-Al-O oxides were very common among the commercial ODS alloys, such as PM2000 [ 51 , 52 , 53 ].…”

Ti–SrO metal matrix composites for bone implant materials

“…The renement of grain size of Ti-SrO MMCs is the main reason for the strengthening. The strengthening of grain size is described using the Hall-Petch relationship, 20 which can be written as:…”