Oxidation resistance and mechanical properties of Al2O3-forming and SiO2-forming austenitic stainless steels between 1023 K and 1173 K

被引：17
作者：
Shen, Lin [1 ]
Wang, Yongning [1 ]
Jing, Tengfei [1 ]
Peng, Huabei [1 ]
Wen, Yuhua [1 ]
机构：
[1] Sichuan Univ, Sch Mech Engn, Chengdu 610065, Peoples R China
来源：
CORROSION SCIENCE | 2023年 / 211卷
关键词：
Austenitic stainless steels; Alumina; Silica; Oxidation resistance; Mechanical property; HIGH-TEMPERATURE OXIDATION; CORROSION-RESISTANCE; STACKING-FAULT; SI CONTENT; SILICON; BEHAVIOR; MICROSTRUCTURE; MARTENSITE; ADDITIONS; NI;
D O I：
10.1016/j.corsci.2022.110914
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
ABS T R A C T To know differences in oxidation resistance and mechanical properties between Al2O3-forming and SiO2-forming austenitic stainless steels, oxidation behavior and mechanical properties were investigated in Fe-20Ni-14Cr-3Al-1Nb-0.1C, Fe-20Ni-14Cr-5Si, and Fe-20Ni-14Cr-3Si-1Nb-0.1C (in wt%) steels. The results showed that the oxidation resistance of Fe-20Ni-14Cr-3Si-1Nb-0.1C steel was comparable to that of Fe-20Ni-14Cr-3Al-1Nb-0.1C steel at 1023-1073 K but poor at 1123 K. The addition of Nb could improve the oxidation resistance in the SiO2- forming steels. The solution-treated and oxidized SiO2-forming steels showed remarkably higher ductility but lower yield strength than the Al2O3-forming steel did. The easier twinning and fewer precipitates were responsible for the remarkably higher ductility in the SiO2-forming steels.
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页数：13
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