Hong-lei Wang, Tai-xiu Gao, Jia-zheng Niu, Pei-jian Shi, Jing Xu, and Yan Wang, Microstructure, thermal properties, and corrosion behaviors of FeSiBAlNi alloy fabricated by mechanical alloying and spark plasma sintering, Int. J. Miner. Metall. Mater., 23(2016), No. 1, pp. 77-82. https://doi.org/10.1007/s12613-016-1213-4
Cite this article as:
Hong-lei Wang, Tai-xiu Gao, Jia-zheng Niu, Pei-jian Shi, Jing Xu, and Yan Wang, Microstructure, thermal properties, and corrosion behaviors of FeSiBAlNi alloy fabricated by mechanical alloying and spark plasma sintering, Int. J. Miner. Metall. Mater., 23(2016), No. 1, pp. 77-82. https://doi.org/10.1007/s12613-016-1213-4
Hong-lei Wang, Tai-xiu Gao, Jia-zheng Niu, Pei-jian Shi, Jing Xu, and Yan Wang, Microstructure, thermal properties, and corrosion behaviors of FeSiBAlNi alloy fabricated by mechanical alloying and spark plasma sintering, Int. J. Miner. Metall. Mater., 23(2016), No. 1, pp. 77-82. https://doi.org/10.1007/s12613-016-1213-4
Citation:
Hong-lei Wang, Tai-xiu Gao, Jia-zheng Niu, Pei-jian Shi, Jing Xu, and Yan Wang, Microstructure, thermal properties, and corrosion behaviors of FeSiBAlNi alloy fabricated by mechanical alloying and spark plasma sintering, Int. J. Miner. Metall. Mater., 23(2016), No. 1, pp. 77-82. https://doi.org/10.1007/s12613-016-1213-4
An equiatomic FeSiBAlNi amorphous high-entropy alloy (HEA) was fabricated by mechanical alloying (MA). A fully amorphous phase was obtained in the FeSiBAlNi HEA after 240 h of MA. The bulk FeSiBAlNi samples were sintered by spark plasma sintering (SPS) at 520 and 1080℃ under a pressure of 80 MPa. The sample sintered at 520℃ exhibited an amorphous composite structure comprising solid-solution phases (body-centered cubic (bcc) and face-centered cubic (fcc) phases). When the as-milled amorphous HEA was consolidated at 1080℃, another fcc phase appeared and the amorphous phase disappeared. The sample sintered by SPS at 1080℃ exhibited a slightly higher melting temperature compared with those of the as-milled alloy and the bulk sample sintered at 520℃. The corrosion behaviors of the as-sintered samples were investigated by potentiodynamic polarization measurements and immersion tests in seawater solution. The results showed that the HEA obtained by SPS at 1080℃ exhibited better corrosion resistance than that obtained by SPS at 520℃.
An equiatomic FeSiBAlNi amorphous high-entropy alloy (HEA) was fabricated by mechanical alloying (MA). A fully amorphous phase was obtained in the FeSiBAlNi HEA after 240 h of MA. The bulk FeSiBAlNi samples were sintered by spark plasma sintering (SPS) at 520 and 1080℃ under a pressure of 80 MPa. The sample sintered at 520℃ exhibited an amorphous composite structure comprising solid-solution phases (body-centered cubic (bcc) and face-centered cubic (fcc) phases). When the as-milled amorphous HEA was consolidated at 1080℃, another fcc phase appeared and the amorphous phase disappeared. The sample sintered by SPS at 1080℃ exhibited a slightly higher melting temperature compared with those of the as-milled alloy and the bulk sample sintered at 520℃. The corrosion behaviors of the as-sintered samples were investigated by potentiodynamic polarization measurements and immersion tests in seawater solution. The results showed that the HEA obtained by SPS at 1080℃ exhibited better corrosion resistance than that obtained by SPS at 520℃.
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