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Magnetic Properties and Microstructure of FeCoNi(CuAl)0.8Snx (0 ? x ? 0.10) High-Entropy Alloys.

ABSTRACT: The present work exhibits the effects of Sn addition on the magnetic properties and microstructure of FeCoNi(CuAl)0.8Snx (0 ? x ? 0.10) high-entropy alloys (HEAs). The results show all the samples consist of a mixed structure of face-centered-cubic (FCC) phase and body-centered-cubic (BCC) phase. The addition of Sn promotes the formation of BCC phase, and it also affects the shape of Cu-rich nano-precipitates in BCC matrix. It also shows that the Curie temperatures (Tc) of the FCC phase and the saturation magnetization (Ms) of the FeCoNi(CuAl)0.8Snx (0 ? x ? 0.10) HEAs increase greatly while the remanence (Br) decreases after the addition of Sn into FeCoNi(CuAl)0.8 HEA. The thermomagnetic curves indicate that the phases of the FeCoNi(CuAl)0.8Snx (0 ? x ? 0.10) HEAs will transform from FCC with low Tc to BCC phase with high Tc at temperature of 600-700 K. This work provides a new idea for FeCoNi(CuAl)0.8Snx (0 ? x ? 0.10) HEAs for their potential application as soft magnets to be used at high temperatures.

SUBMITTER: Li Z 

PROVIDER: S-EPMC7512446 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature

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Magnetic Properties and Microstructure of FeCoNi(CuAl)<sub>0.8</sub>Sn<sub><i>x</i></sub> (0 ≤ <i>x</i> ≤ 0.10) High-Entropy Alloys.

Li Zhong Z   Wang Chenxu C   Yu Linye L   Gu Yong Y   Pan Minxiang M   Tan Xiaohua X   Xu Hui H  

Entropy (Basel, Switzerland) 20181113 11

The present work exhibits the effects of Sn addition on the magnetic properties and microstructure of FeCoNi(CuAl)<sub>0.8</sub>Sn<i><sub>x</sub></i> (0 ≤ <i>x</i> ≤ 0.10) high-entropy alloys (HEAs). The results show all the samples consist of a mixed structure of face-centered-cubic (FCC) phase and body-centered-cubic (BCC) phase. The addition of Sn promotes the formation of BCC phase, and it also affects the shape of Cu-rich nano-precipitates in BCC matrix. It also shows that the Curie tempera  ...[more]

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