Investigation in the corrosion behaviour of bulk nanocrystalline 316L austenitic stainless steel in NaCl solution

2012 ◽  
Vol 7 (4) ◽  
pp. 380 ◽  
Author(s):  
M. Eskandari ◽  
M. Yeganeh ◽  
M. Motamedi
Keyword(s):  
Stainless Steel ◽  
Austenitic Stainless Steel ◽  
Corrosion Behaviour ◽  
Nacl Solution ◽  
316L Austenitic Stainless Steel ◽  
Bulk Nanocrystalline

Low Temperature Fluidized Bed Nitriding of Austenitic Stainless Steel

2006 ◽  
Vol 118 ◽  
pp. 125-130 ◽  
Author(s):  
E. Haruman ◽  
Y. Sun ◽  
H. Malik ◽  
Agus Geter E. Sutjipto ◽  
S. Mridha ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Austenitic Stainless Steel ◽  
Low Temperature ◽  
Fluidized Bed ◽  
Corrosion Behaviour ◽  
Plasma Nitriding ◽  
Nitrided Layer ◽  
Temperature Plasma ◽  
316L Austenitic Stainless Steel ◽  
Fluidized Bed Process

In the present investigation, low temperature nitriding has been attempted on AISI 316L austenitic stainless steel by using a laboratory fluidized bed furnace. The nitriding was performed in temperature range between 400°C and 500°C. X-ray diffraction, metallography, and corrosion tests were used to characterize the resultant nitrided surface and layers. The results showed that fluidized bed process can be used to produce a precipitation-free nitrided layer characterized by the S phase or expanded austenite on austenitic stainless steel at temperatures below 500°C. But there exists a critical temperature and an incubation time for effective nitriding, below which nitriding is ineffective. The corrosion behaviour of the as-nitrided surfaces is significantly different from that previously reported for low temperature plasma nitriding. This anomaly is explained by the formation of iron oxide products and surface contamination during the fluidized process.

scholarly journals EFFECT OF PH2S INFLUENCE ON AUSTENITIC STAINLESS STEEL 316L CORROSION BEHAVIOURS IN CHLORIDE ENVIRONMENT / KESAN PENGARUH TEKANAN SEPARA GAS H2S TERHADAP TINGKAH LAKU KAKISAN KELULI TAHAN KARAT 316L DI PERSEKITARAN KLORIDA

2021 ◽  
Vol 33 (2) ◽  
Author(s):  
Mazlan Shah ◽  
Nor Rahafza Abdul Manap ◽  
Muhammad Taqiyuddin Mawardi Ayob ◽  
Najmiddin Yaakob ◽  
Zaidi Embong ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Austenitic Stainless Steel ◽  
Oil And Gas ◽  
Corrosion Behaviour ◽  
Oil And Gas Industry ◽  
Pipeline System ◽  
Stainless Steel 316L ◽  
316L Steel ◽  
316L Austenitic Stainless Steel ◽  
Chloride Environment

H2S corrosion of equipment and pipeline system failures in oil and gas industry is a major concern of researchers as it involves high maintenance costs. Therefore, this study discusses the effect of H2S partial pressure at 0, 3 and 15 bar towards the corrosion behaviour of 316L austenitic stainless steel in chloride environments. The 316L steel exposed to 0 bar pH2S was slightly corroded due to the presence of Cr element which has increased the corrosion resistance of the 316L steel. However, pit penetration rate of 316L steel was increased by 90.1% from 0.07 mm/year at 0 bar pH2S to 0.74 mm/year at 3 bar pH2S and decreased by 83.2% at 15 bar pH2S due to the saturated sulfide content in the test solution. Therefore, 316L steel at 3 bar shows highest corrosion effect due to the dissolution of Cr element at 316L steels surface, thus enhanced passive film breakdown.

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