典型文献
Unveiling the mechanism of yttrium significantly improving high-temperature oxidation resistance of super-austenitic stainless steel S32654
文献摘要：
Aiming at serious catastrophic oxidation problem of super-austenitic stainless steel S32654,the influence of different rare earth elements on its oxidation behavior was comparatively investigated at 1200℃.The mechanism of Y significantly improving high-temperature oxidation resistance of S32654 was unveiled.The results demonstrated that Y played much better beneficial roles than Ce and La in the initial forma-tion of oxide layer:(1)Y promoted Cr segregation to steel surface to combine with O;(2)its preferential oxidation provided nucleation cores for Cr2O3.Both roles jointly promoted the selective oxidation of Cr and then the formation of protective Cr-rich oxide layer.This provided good prerequisites for inhibiting the formation and volatilization of MoO3.Additionally,Y cation segregation to oxide grain boundaries fur-ther promoted the selective oxidation of Cr and Si to form more protective oxide layer.These beneficial roles of Y essentially eliminated the synergistic effects of MoO3 volatilization and lamellar Cr2N precipi-tation on catastrophic oxidation.Accordingly,the oxidation resistance of Y-bearing S32654 was improved by 22％-45％.
文献关键词：
中图分类号：
作者姓名：
Shucai Zhang;Huabing Li;Zhouhua Jiang;Hao Feng;Zhejian Wen;Junyu Ren;Peide Han
作者机构：
School of Metallurgy,Northeastern University,Shenyang 110819,China;Key Laboratory for Ecological Metallurgy of Multimetallic Ores(Ministry of Education),Shenyang 110819,China;College of Materials Science and Engineering,Taiyuan University of Technology,Taiyuan 030024,China
文献出处：
引用格式：
[1]Shucai Zhang;Huabing Li;Zhouhua Jiang;Hao Feng;Zhejian Wen;Junyu Ren;Peide Han-.Unveiling the mechanism of yttrium significantly improving high-temperature oxidation resistance of super-austenitic stainless steel S32654)[J].材料科学技术（英文版）,2022(20):103-114
A类：
S32654
B类：
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AB值：
0.552789
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机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
