DOAJ Open Access 2022

Effect of rare earth elements on the segregation behavior and microstructure of super austenitic stainless steel

Yue Zhang Jun Xiao Juhua Liang Wei Pei Pengfei Liu +2 lainnya

Abstrak

Super austenitic stainless steel (SASS) was prepared by non-consumable vacuum arc melting for the first time. The effects of rare earth (RE) elements on its solidification microstructure and segregation behavior were investigated. The σ phase is the main precipitation phase in SASS. The addition of RE elements can refine the solidification microstructure and the dendrite spacing. The addition of RE elements reduced the secondary dendrite spacing at top (S1) by 5.22 μm. The elements as Cr, Mn, and Mo have positive segregation, and elements as Ni and Fe have negative segregation. The addition of RE elements has the trend of reducing element segregation, thereby inhibiting the σ phase precipitation. And the addition of RE reduces the hardness of the secondary phase.

Topik & Kata Kunci

Mining engineering. Metallurgy

Penulis (7)

Yue Zhang

Jun Xiao

Juhua Liang

Wei Pei

Pengfei Liu

Wei Zhang

Aimin Zhao

Format Sitasi

APA MLA BibTeX

Zhang, Y., Xiao, J., Liang, J., Pei, W., Liu, P., Zhang, W. et al. (2022). Effect of rare earth elements on the segregation behavior and microstructure of super austenitic stainless steel. https://doi.org/10.1016/j.jmrt.2022.04.120

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Informasi Jurnal

Tahun Terbit: 2022
Sumber Database: DOAJ
DOI: 10.1016/j.jmrt.2022.04.120
Akses: Open Access ✓