Carbide precipitation strengthening in fine-grained carbon-doped FeCoCrNiMn high entropy alloy

2019 ◽  
Vol 803 ◽  
pp. 491-498 ◽  
Author(s):  
Jian Peng ◽  
Ziyong Li ◽  
Liming Fu ◽  
Xinbo Ji ◽  
Zhuorui Pang ◽  
...  
Keyword(s):  
Carbide Precipitation ◽  
Precipitation Strengthening ◽  
High Entropy Alloy ◽  
High Entropy ◽  
Carbon Doped ◽  
Fine Grained

scholarly journals Microstructure and Mechanical Property Evolution during Annealing of a Cold-Rolled Metastable Powder Metallurgy High Entropy Alloy

Entropy ◽  
2019 ◽  
Vol 21 (9) ◽  
pp. 833 ◽  
Author(s):  
Li ◽  
Qiu ◽  
Guo ◽  
Liu ◽  
Zhou ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Mechanical Property ◽  
Tensile Strength ◽  
Powder Metallurgy ◽  
Cold Deformation ◽  
Precipitation Strengthening ◽  
High Entropy Alloy ◽  
Σ Phase ◽  
High Entropy ◽  
Fine Grain

Precipitation strengthening is an effective approach to strengthen high-entropy alloys (HEAs) with a simple face-center-cubic (FCC) structure. In this work, CoCrFeNiMo0.2 HEAs were prepared by powder metallurgy, followed by cool rolling and subsequent heat-treatment at different temperatures. The effects of cold working and annealing on microstructure and mechanical properties have been investigated. Results show the fine and dispersed (Cr, Mo)-rich σ phase with a topologically close-packed structure precipitated in the FCC matrix after the prior cold deformation process, which enhanced the mechanical property of the CoCrFeNiMo0.2 alloy. The HEA annealed at 600 °C for 48 h had a tensile strength of 1.9 GPa but an elongation which decreased to 8%. The HEA annealed at 800 °C for 12 h exhibited a tensile strength of 1.2 GPa and an elongation of 31%. These outstanding mechanical properties can be attributed to precipitation strengthening and fine-grain strengthening.

Decomposition kinetics of carbon-doped FeCoCrNiMn high-entropy alloy at intermediate temperature

2020 ◽  
Vol 30 (7) ◽  
pp. 1884-1894 ◽  
Author(s):  
Jian PENG ◽  
Zi-yong LI ◽  
Xin-bo JI ◽  
Yan-le SUN ◽  
Li-ming FU ◽  
...  
Keyword(s):  
Decomposition Kinetics ◽  
Intermediate Temperature ◽  
High Entropy Alloy ◽  
High Entropy ◽  
Carbon Doped ◽  
Kinetics Of

scholarly journals Micro- and mesoscale mechanical properties of an ultra-fine grained CrFeMnNi high entropy alloy produced by large strain machining

2020 ◽  
Vol 178 ◽  
pp. 508-512 ◽  
Author(s):  
Jonathan G. Gigax ◽  
Osman El-Atwani ◽  
Quinn McCulloch ◽  
Berk Aytuna ◽  
Mert Efe ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Large Strain ◽  
High Entropy Alloy ◽  
High Entropy ◽  
Fine Grained

Optimizing the coupled effects of Hall-Petch and precipitation strengthening in a Al 0.3 CoCrFeNi high entropy alloy

2017 ◽  
Vol 121 ◽  
pp. 254-260 ◽  
Author(s):  
B. Gwalani ◽  
Vishal Soni ◽  
Michael Lee ◽  
SA Mantri ◽  
Yang Ren ◽  
...  
Keyword(s):  
Precipitation Strengthening ◽  
High Entropy Alloy ◽  
High Entropy

Enhanced mechanical properties of carbon-doped FeNiMnAlCr high entropy alloy via hot-rolling

2019 ◽  
Vol 158 ◽  
pp. 109983 ◽  
Author(s):  
Margaret Wu ◽  
Chao Yang ◽  
Michael Kuijer ◽  
Ian Baker
Keyword(s):  
Mechanical Properties ◽  
Hot Rolling ◽  
High Entropy Alloy ◽  
High Entropy ◽  
Carbon Doped

scholarly journals Kinetics of recrystallization and grain growth in an ultra-fine grained CoCrFeNiMn-type high-entropy alloy

2019 ◽  
Vol 1270 ◽  
pp. 012053
Author(s):  
M V Klimova ◽  
D G Shaysultanov ◽  
R S Chernichenko ◽  
V N Sanin ◽  
S V Zherebtsov ◽  
...  
Keyword(s):  
Grain Growth ◽  
High Entropy Alloy ◽  
High Entropy ◽  
Fine Grained ◽  
Kinetics Of

scholarly journals Superplasticity in fine grained dual phase high entropy alloy

Materialia ◽  
2020 ◽  
Vol 9 ◽  
pp. 100521 ◽  
Author(s):  
S.S. Nene ◽  
K. Liu ◽  
S. Sinha ◽  
M. Frank ◽  
S. Williams ◽  
...  
Keyword(s):  
High Entropy Alloy ◽  
Dual Phase ◽  
High Entropy ◽  
Fine Grained
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