Simultaneous deformation twinning and martensitic transformation in CoCrFeMnNi high entropy alloy at high temperatures

2021 ◽  
Vol 202 ◽  
pp. 113995
Author(s):  
S. Picak ◽  
H.C. Yilmaz ◽  
I. Karaman
Keyword(s):  
Martensitic Transformation ◽  
High Temperatures ◽  
Deformation Twinning ◽  
High Entropy Alloy ◽  
High Entropy

Ultrastrong Duplex High-Entropy Alloy with 2 GPa Cryogenic Strength Enabled by an Accelerated Martensitic Transformation

2019 ◽  
Author(s):  
Dong Geun Kim ◽  
Yong Hee Jo ◽  
Junha Yang ◽  
Won-Mi Choi ◽  
Hyoung Seop Kim ◽  
...  
Keyword(s):  
Martensitic Transformation ◽  
High Entropy Alloy ◽  
High Entropy

Plastic deformation mechanisms of equiatomic Ni20Ti20Fe20Al20Cu20 high-entropy alloy at high temperatures

2016 ◽  
Vol 52 (6) ◽  
pp. 3199-3207 ◽  
Author(s):  
Shuyong Jiang ◽  
Dong sun ◽  
Yanqiu Zhang ◽  
Sibing Wang ◽  
Chengzhi Zhao
Keyword(s):  
Plastic Deformation ◽  
High Temperatures ◽  
Deformation Mechanisms ◽  
High Entropy Alloy ◽  
High Entropy

scholarly journals Ductile Ti-rich high-entropy alloy controlled by stress induced martensitic transformation and mechanical twinning

2019 ◽  
Vol 763 ◽  
pp. 138147 ◽  
Author(s):  
Lu Wang ◽  
Chao Fu ◽  
Yidong Wu ◽  
Runguang Li ◽  
Yandong Wang ◽  
...  
Keyword(s):  
Martensitic Transformation ◽  
Mechanical Twinning ◽  
High Entropy Alloy ◽  
High Entropy

Alloying behavior and deformation twinning in a CoNiFeCrAl0.6Ti0.4 high entropy alloy processed by spark plasma sintering

2013 ◽  
Vol 553 ◽  
pp. 316-323 ◽  
Author(s):  
Zhiqiang Fu ◽  
Weiping Chen ◽  
Sicong Fang ◽  
Dayue Zhang ◽  
Huaqiang Xiao ◽  
...  
Keyword(s):  
Spark Plasma Sintering ◽  
Deformation Twinning ◽  
High Entropy Alloy ◽  
High Entropy ◽  
Plasma Sintering ◽  
Spark Plasma

scholarly journals Effect of V and Ti on the Oxidation Resistance of WMoTaNb Refractory High-Entropy Alloy at High Temperatures

Metals ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 41
Author(s):  
Shuaidan Lu ◽  
Xiaoxiao Li ◽  
Xiaoyu Liang ◽  
Wei Yang ◽  
Jian Chen
Keyword(s):  
Oxidation Resistance ◽  
High Temperatures ◽  
Elevated Temperatures ◽  
Early Stage ◽  
Mass Gain ◽  
High Entropy Alloy ◽  
High Entropy Alloys ◽  
X Ray Diffraction ◽  
X Ray ◽  
High Entropy

Alloying with V and Ti elements effectively improves the strength of WMoTaNb refractory high entropy alloys (RHEAs) at elevated temperatures. However, their effects on the oxidation resistance of WMoTaNb RHEAs are unknown, which is vitally important to their application at high temperatures. In this work, the effect of V and Ti on the oxidation behavior of WMoTaNb RHEA at 1000 °C was investigated using a thermogravimetric system, X-ray diffraction and scanning electron microscopy. The oxidation of all alloys was found to obey a power law passivating oxidation at the early stage. The addition of V aggravates the volatility of V2O5, MoO3 and WO3, and leads to disastrous internal oxidation. The addition of Ti reduces the mass gain in forming the full coverage of passivating scale and prolongs the passivation duration of alloys.

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