Influence of Si addition on the corrosion behavior of 9 wt% Cr ferritic/martensitic steels exposed to oxygen-controlled molten Pb-Bi eutectic at 550 and 600 °C

2021 ◽  
Vol 193 ◽  
pp. 109871
Author(s):  
Hao Shi ◽  
Hui Wang ◽  
Renate Fetzer ◽  
Annette Heinzel ◽  
Alfons Weisenburger ◽  
...  
2020 ◽  
Vol 166 ◽  
pp. 108432 ◽  
Author(s):  
Ziqiang Dong ◽  
Ming Li ◽  
Yashar Behnamian ◽  
Jing-Li Luo ◽  
Weixing Chen ◽  
...  

Author(s):  
Valentyn Tsisar ◽  
Carsten Schroer ◽  
Olaf Wedemeyer ◽  
Aleksandr Skrypnik ◽  
Jürgen Konys

Corrosion behavior of 9 %Cr ferritic/martensitic (F/M) P92, E911 and EUROFER steels was investigated in flowing (2 m/s) Pb-Bi with 10−7 mass%O at 450 and 550 °C for up to 8766 and 2011 h, respectively. The steels show mixed corrosion modes simultaneously revealing protective scaling, accelerated oxidation and solution-based attack. At 450 °C, the accelerated oxidation resulted in a metal recession averaging 6 μm (± 2 μm) after ∼8766 h while local solution-based corrosion attack ranged from ∼40 to 350 μm. At 550 °C, the accelerated oxidation resulted in a metal recession of about 10 μm (± 2 μm) after ∼2011 h. Solution-based corrosion attack appears more regularly at 550 °C, with a maximum depth ranged from ∼90 to 1000 μm. Incubation time for solution based attack is 500–2000 h for 450 °C and < 300 h for 550 °C. The EUROFER steel showed more severe metal recession via both oxidation and solution-based corrosion in comparison with P92 and E911 steels. The possible effect of alloying and structure on the corrosion response of 9 %Cr F/M steels is discussed.


2021 ◽  
pp. 109474
Author(s):  
Chao Liu ◽  
Tielong Shen ◽  
Cunfeng Yao ◽  
Hailong Chang ◽  
Kongfang Wei ◽  
...  

2017 ◽  
Vol 830 ◽  
pp. 012114
Author(s):  
E Vardanyan ◽  
K Ramazanov ◽  
I Yagafarov ◽  
A Khamzina ◽  
R Agzamov

Author(s):  
Valentyn Tsisar ◽  
Carsten Schroer ◽  
Olaf Wedemeyer ◽  
Aleksandr Skrypnik ◽  
Jürgen Konys

Corrosion behavior of 9%Cr F/M P92, E911, and EUROFER steels was investigated in flowing (2 m/s) Pb–Bi with 10−7 mass % O at 450 and 550 °C for up to 8766 and 2011 h, respectively. The steels show mixed corrosion modes simultaneously revealing protective scale formation, accelerated oxidation, and solution-based attack. At 450 °C, the accelerated oxidation resulted in a metal recession averaging 6 μm (± 2 μm) after ∼ 8766 h, while local solution-based corrosion attack ranged from ∼40 to 350 μm. At 550 °C, the accelerated oxidation resulted in a metal recession of about 10 μm (± 2 μm) after ∼ 2011 h. Solution-based corrosion attack appears more regularly at 550 °C, with a maximum depth ranged from ∼90 to 1000 μm. The incubation time for the solution based attack at 450 °C is 500–2000 h and < 300 h at 550 °C.


2012 ◽  
Vol 19 (5) ◽  
pp. 69-73 ◽  
Author(s):  
Ying Yang ◽  
Qing-zhi Yan ◽  
Ya-feng Yang ◽  
Le-fu Zhang ◽  
Chang-chun Ge

Author(s):  
Tomohiro Furukawa ◽  
Eiichi Yoshida ◽  
Kazumi Aoto

Corrosion test of three chromium-molybdenum steels — 2.25Cr-1Mo, Mod.9Cr-1Mo and 12Cr-steel (ASME P122) — has been performed in stagnant lead–bismuth eutectic (LBE) at low oxygen partial pressure at 550 °C up to 2,000 hours. After the test, the specimens were metallurgically examined using a scanning electron microscopy. All steels had good resistance to LBE under this test condition, and the difference of the effect of chromium concentration in the steels on corrosion behavior was not observed. Corrosion depth of the steels was a few microns, and chromium solution into LBE was observed on the surface. Very thin chromium oxide layer was partly observed on the surfaces of all steels. At the area, no corrosion was occurred. The behavior was the same as the results of martensitic steels tested in stagnant LBE containing 10−7 wt% to 10−8 wt% of oxygen.


Energy ◽  
2019 ◽  
Vol 175 ◽  
pp. 1075-1084 ◽  
Author(s):  
Zhongliang Zhu ◽  
Yi Cheng ◽  
Bo Xiao ◽  
Hasan Izhar Khan ◽  
Hong Xu ◽  
...  

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