Heat Treatment of Corrosion-Resistant Austenitic-Ferritic Steel For Immersion Pumps

被引：0
作者：
Fakhurtdinov, R. S. [1 ]
Puchkov, Yu. A. [1 ]
Karpukhin, S. D. [1 ]
Medvedev, P. N. [2 ]
Degtyareva, A. G. [1 ]
机构：
[1] Bauman Moscow State Tech Univ, Moscow, Russia
[2] All Russia Inst Aviat Mat VIAM, Moscow, Russia
来源：
METAL SCIENCE AND HEAT TREATMENT | 2023年 / 65卷 / 3-4期
关键词：
stainless austenitic-ferritic steels; heat treatment; quenching; corrosion; immersion pump;
D O I：
10.1007/s11041-023-00905-2
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The effect of quenching modes on the structure, phase composition and hardness of austenitic-ferritic stainless steel 20Kh25N8AD3M2 is studied by optical microscopy, x-ray diffraction phase analysis and hardness measurement. Corrosion tests are conducted in a 3% aqueous solution of NaCl with the use of potentiometry and potentiodynamic analysis. Heat treatment modes improving the resistance of steel 20Kh25N8AD3M2 to general and pitting corrosion are suggested. It is shown that aluminum and titanium used to deoxidize the steel can cause pitting corrosion even after quenching.
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页码：137 / 144
页数：8
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