Phase evolution and mechanical properties of non-equiatomic Fe–Mn–Ni–Cr–Al–Si–C high entropy steel

2020 ◽  
Vol 834 ◽  
pp. 155013 ◽  
Author(s):  
Harsh Jain ◽  
Yagnesh Shadangi ◽  
Vikas Shivam ◽  
Dibyendu Chakravarty ◽  
N.K. Mukhopadhyay ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Phase Evolution ◽  
High Entropy

Phase evolution and mechanical properties of novel FeCoNiCuMox high entropy alloys

Vacuum ◽  
2020 ◽  
Vol 174 ◽  
pp. 109173 ◽  
Author(s):  
Vinay Kumar Soni ◽  
Shubhashis Sanyal ◽  
Sudip K. Sinha
Keyword(s):  
Mechanical Properties ◽  
Phase Evolution ◽  
High Entropy Alloys ◽  
High Entropy

scholarly journals Designing of Fe-containing (Ti33Zr33Hf33)-(Ni50Cu50) high entropy alloys developed by equiatomic substitution: phase evolution and mechanical properties

2020 ◽  
Vol 9 (4) ◽  
pp. 7732-7739 ◽  
Author(s):  
Hae Jin Park ◽  
Young Seok Kim ◽  
Sang Chul Mun ◽  
Sung Hwan Hong ◽  
Wei-Min Wang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Phase Evolution ◽  
High Entropy Alloys ◽  
High Entropy

scholarly journals Effect of SiC on Microstructure, Phase Evolution, and Mechanical Properties of Spark-Plasma-Sintered High-Entropy Ceramic Composite

Ceramics ◽  
2020 ◽  
Vol 3 (3) ◽  
pp. 359-371
Author(s):  
Hanzhu Zhang ◽  
Farid Akhtar
Keyword(s):  
Mechanical Properties ◽  
Volume Fraction ◽  
Phase Evolution ◽  
Ceramic Composites ◽  
Hexagonal Structure ◽  
Face Centered Cubic ◽  
High Entropy ◽  
Spark Plasma ◽  
Fcc Phase ◽  
Sic Composites

Ultra-high temperature ceramic composites have been widely investigated due to their improved sinterability and superior mechanical properties compared to monolithic ceramics. In this work, high-entropy boron-carbide ceramic/SiC composites with different SiC content were synthesized from multicomponent carbides HfC, Mo2C, TaC, TiC, B4C, and SiC in spark plasma sintering (SPS) from 1600 °C to 2000 °C. It was found that the SiC addition tailors the phase formation and mechanical properties of the high-entropy ceramic (HEC) composites. The microhardness and fracture toughness of the HEC composites sintered at 2000 °C were improved from 20.3 GPa and 3.14 MPa·m1/2 to 26.9 GPa and 5.95 MPa·m1/2, with increasing SiC content from HEC-(SiC)0 (0 vol. %) to HEC-(SiC)3.0 (37 vol. %). The addition of SiC (37 vol. %) to the carbide precursors resulted in the formation of two high-entropy ceramic phases with two different crystal structures, face-centered cubic (FCC) structure, and hexagonal structure. The volume fraction ratio between the hexagonal and FCC high-entropy phases increased from 0.36 to 0.76 when SiC volume fraction was increased in the composites from HEC-(SiC)0 to HEC-(SiC)3.0, suggesting the stabilization of the hexagonal high-entropy phase over the FCC phase with SiC addition.

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