The Effect of Yttrium Addition on the Solidification Microstructure and Sigma Phase Precipitation Behavior of S32654 Super Austenitic Stainless Steel

The Effect of Yttrium Addition on the Solidification Microstructure and Sigma Phase Precipitation Behavior of S32654 Super Austenitic Stainless Steel

This study focuses on S32654 super austenitic stainless steel (SASS) and systematically characterizes the morphology of the sigma (σ) phase and the segregation behavior of alloying elements in its as-cast microstructure. High-temperature confocal scanning laser microscopy (HT-CSLM) was employed to i...

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Bibliographic Details
Main Authors: Jun Xiao, Geng Tian, Di Wang, Shaoguang Yang, Kuo Cao, Jianhua Wei, Aimin Zhao
Format: Article
Language:English
Published: MDPI AG 2025-07-01
Series:Metals
Subjects:
super austenitic stainless steel
σ phase
HT-CLSM
precipitation mechanism
rare earth Y
Online Access:https://www.mdpi.com/2075-4701/15/7/798
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