Microstructure and Mechanical Properties of FCC + BCC Dual-Phase CoFeNiVAl0.25 High-Entropy Alloy via Cold-Rolling and Aging

Mechanical properties and deformation mechanisms of precipitation-strengthened heterogeneously structured FeNi-based medium-entropy alloy

Conventional high-performance superalloys typically rely on substantial amounts of costly Ni and Co, raising material costs and restricting widespread industrial use. We adopt a Fe-rich FeNi-based multi-principal element alloy with the nominal composition Fe40Ni30Co10Cr10Al5Ti5 (at.%) as a model system. Via heavy cold...

Investigation on the Deformation Mechanisms of an Ultrafine-Grained AlCoCrFe2Ni Eutectic High-Entropy Alloy

Simultaneous Enhancement of Strength and Ductility in a CoCrFeNiAl0.5Ti0.1 Alloy via Quenching-Induced Solid-State Phase Transformation

Alloys often face a well-known trade-off: enhancing strength typically results in a reduction in ductility, and vice versa. This inherent limitation poses a significant challenge in materials engineering, particularly in applications requiring both high strength and adequate deformability. In this study, we investigate...

Strength–Ductility Synergy in a Peak-Aged Low-Cu Al-Zn-Mg-Cu-Zr Thin-Walled Extruded Profile: Coupling of η′ Precipitation and Heterogeneous Grain Structure

To elucidate the strength–ductility synergy in a peak-aged low-Cu Al-Zn-Mg-Cu-Zr thin-walled extruded profile, the mechanical properties, precipitation behavior, and grain structure of the alloy were systematically investigated after solution treatment at 470 °C for 2 h followed by single-step aging at 120 °C for 8–48...

Modification of Superficial Microstructure and Strength–Ductility Trade‐Off in A100 Ultrahigh Strength Steel via Multiple Laser Shock Peening

Seeking further breakthrough in mechanical performance of A100 ultrahigh strength steel is crucial for broadening its applications in harsh service conditions. This study utilizes laser shock peening (LSP) to modify A100 steel, characterizing microstructure evolution and tensile properties as functions of coverage la...

A review on advanced manufacturing strategies for MoNbTaW refractory high-entropy alloys: Processing, structure–property relationships, and environmental performance

MoNbTaW refractory high-entropy alloys (RHEAs) have attracted considerable interest for extreme environment applications due to their exceptional high-temperature strength, thermal stability, and simple body-centered cubic (BCC) solid-solution structure. This review provides a comprehensive analysis of their processi...