Investigation of hierarchical precipitation on bimodal-grained austenite and mechanical properties in quenching-partitioning-tempering steel

Investigation of hierarchical precipitation on bimodal-grained austenite and mechanical properties in quenching-partitioning-tempering steel

The influence of the hierarchical nanometer-sized precipitates (NPs) on the microstructure evolution and mechanical properties of ultra-low carbon medium manganese quenching-partitioning-tempering (QPT) steel was studied. A unique combination of hierarchical NPs including lenticular Cu/Ni precipitat...

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Veröffentlicht in:Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2020-04, Vol.781, p.1-10, Article 139207
Hauptverfasser: Li, Yu, Li, Wei, Xu, Chun, Min, Na, Liu, Wenqing, Liu, Huibin, Jin, Xuejun
Format: Artikel
Sprache:eng
Schlagworte:
Austenite
Chemical precipitation
Copper
Cracks
Elongation
Grain boundaries
Grain growth
Heat treating
Hierarchical precipitates
Impact strength
Manganese
Mechanical properties
Nickel aluminides
Nickel base alloys
Nickel compounds
Partitioning
Precipitates
QPT steel
Quenching
Stability
Strain hardening
Stress concentration
Tempering
Toughness
TRIP effect
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Zusammenfassung:The influence of the hierarchical nanometer-sized precipitates (NPs) on the microstructure evolution and mechanical properties of ultra-low carbon medium manganese quenching-partitioning-tempering (QPT) steel was studied. A unique combination of hierarchical NPs including lenticular Cu/Ni precipitates (>5 nm) and spherical (
ISSN:0921-5093
1873-4936
DOI:10.1016/j.msea.2020.139207