Microstructure, mechanical properties and corrosion resistance of CoCrFeNiW (x = 0, 0.2, 0.5) high entropy alloys

2019 ◽  
Vol 112 ◽  
pp. 106550 ◽  
Author(s):  
Zuozhe Niu ◽  
Juan Xu ◽  
Tao Wang ◽  
Nairan Wang ◽  
Zihan Han ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Corrosion Resistance ◽  
High Entropy Alloys ◽  
High Entropy ◽  
Mechanical Properties And Corrosion

scholarly journals Study on the mechanical properties and corrosion resistance of AlxCoFeNiCr1−x high-entropy alloys

2020 ◽  
Vol 6 (12) ◽  
pp. 1265e2
Author(s):  
Shuai Wang ◽  
Yuhong Zhao ◽  
Peng Cheng ◽  
Qingwei Guo ◽  
Xiaotao Xu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Corrosion Resistance ◽  
High Entropy Alloys ◽  
High Entropy ◽  
Mechanical Properties And Corrosion

scholarly journals CrMnFeCoNi high entropy alloys with carbon and nitrogen: mechanical properties, wear and corrosion resistance

2021 ◽  
Vol 3 (11) ◽  
Author(s):  
L. Chmielak ◽  
L. Mujica Roncery ◽  
P. Niederhofer ◽  
S. Weber ◽  
W. Theisen
Keyword(s):  
Mechanical Properties ◽  
Corrosion Resistance ◽  
Austenitic Steels ◽  
High Entropy Alloys ◽  
Interstitial Free ◽  
High Entropy ◽  
Carbon And Nitrogen ◽  
Wear And Corrosion ◽  
Wear And Corrosion Resistance ◽  
The Impact

AbstractThe use of interstitial elements has been a key factor for the development of different kinds of steels. However, this aspect has been little explored in the field of high entropy alloys (HEAs). In this investigation, the effect of carbon and nitrogen in a near-equiatomic CrMnFeCoNi HEA is studied, analyzing their impact on the microstructure, and mechanical properties from 77K to 673K, as well as wear, and corrosion resistance. Carbon and nitrogen are part of the FCC solid solution and contribute to the formation of precipitates. An increase in the yield and ultimate tensile strength accompanied with a decrease in the ductility are the main effects of C and N. The impact toughness of the interstitial-free material is higher than that of C and C+N alloyed systems. Compared to CrNi and CrMn austenitic steels, the wear resistance of the alloys at room temperature is rather low. The surface corrosion resistance of HEAs is comparable to austenitic steels; nevertheless HEAs are more susceptible to pitting in chloride containing solutions.

scholarly journals Influence of Molybdenum on the Microstructure, Mechanical Properties and Corrosion Resistance of Ti20Ta20Nb20(ZrHf)20−xMox (Where: x = 0, 5, 10, 15, 20) High Entropy Alloys

Materials ◽  
2022 ◽  
Vol 15 (1) ◽  
pp. 393
Author(s):  
Karsten Glowka ◽  
Maciej Zubko ◽  
Paweł Świec ◽  
Krystian Prusik ◽  
Magdalena Szklarska ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Lattice Parameters ◽  
Vacuum Arc ◽  
High Entropy Alloys ◽  
Two Phase ◽  
High Entropy ◽  
Matrix Microstructure ◽  
Molybdenum Addition ◽  
Mo Content ◽  
Mechanical Properties And Corrosion

The presented work was focused on investigating the influence of the (hafnium and zirconium)/molybdenum ratio on the microstructure and properties of Ti20Ta20Nb20(ZrHf)20−xMox (where: x = 0, 5, 10, 15, 20 at.%) high entropy alloys in an as-cast state. The designed chemical composition was chosen due to possible future biomedical applications. Materials were obtained from elemental powders by vacuum arc melting technique. Phase analysis revealed the presence of dual body-centered cubic phases. X-ray diffraction showed the decrease of lattice parameters of both phases with increasing molybdenum concentration up to 10% of molybdenum and further increase of lattice parameters. The presence of two-phase matrix microstructure and hafnium and zirconium precipitates was proved by scanning and transmission electron microscopy observation. Mechanical property measurements revealed decreased micro- and nanohardness and reduced Young’s modulus up to 10% of Mo content, and further increased up to 20% of molybdenum addition. Additionally, corrosion resistance measurements in Ringers’ solution confirmed the high biomedical ability of studied alloys due to the presence of stable oxide layers.

Al0.3CrxFeCoNi high-entropy alloys with high corrosion resistance and good mechanical properties

2021 ◽  
Vol 860 ◽  
pp. 158436
Author(s):  
Xiaolei Yan ◽  
Hui Guo ◽  
Wei Yang ◽  
Shujie J. Pang ◽  
Qing Wang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Corrosion Resistance ◽  
High Entropy Alloys ◽  
High Corrosion Resistance ◽  
High Entropy ◽  
High Corrosion
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