The synergy between cementite spheroidization and Cu alloying on the corrosion resistance of ferrite-pearlite steel in acidic chloride solution

2021 ◽  
Vol 84 ◽  
pp. 65-75
Author(s):  
Hu Liu ◽  
Jie Wei ◽  
Junhua Dong ◽  
Yangtao Zhou ◽  
Yiqing Chen ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Chloride Solution ◽  
Acidic Chloride Solution ◽  
Acidic Chloride

Effect of Delta Ferrite on Corrosion Resistance of Type 316L Stainless Steel in Acidic Chloride Solution by Micro-Droplet Cell

2007 ◽  
Vol 124-126 ◽  
pp. 1533-1536 ◽  
Author(s):  
Sung Yu Kim ◽  
Hyuk Sang Kwon ◽  
Hee San Kim
Keyword(s):  
Corrosion Resistance ◽  
Chloride Solution ◽  
Ferrite Phase ◽  
Potential Zone ◽  
Delta Ferrite ◽  
Polarization Behavior ◽  
Δ Ferrite ◽  
Acidic Chloride Solution ◽  
Type 316L ◽  
Acidic Chloride

More than 2% δ-ferrite phase is presented in type 316L stainless steels due to improvement of hot workability or welding process. In order to clarify the mechanism on how the δ-ferrite affects the corrosion resistance, electrochemical tests in a micro-droplet cell were conducted and microstructures were analyzed by TEM-EDS and SEM-EDS. Especially, the micro-droplet cell was modified at our laboratory to observe the polarization behavior of δ-ferrite phase in an acidic chloride solution. The anodic polarization behavior in both active zone and passive zone was affected by δ-ferrite. The degradation of corrosion resistance in the low potential zone with δ-ferrite phase is due to the preferential dissolution of a matrix, γ phase. It is explained with the fact that the formation of δ-ferrite lowers the concentrations of chromium and molybdenum in γ phase. It is also confirmed by potentiostatic test, EDS analyses and phase-equilibrium prediction. In addition, the micro-droplet cell and EDS analysis reveled that the pitting potential in the neutral pH solution was affected by Ca containing inclusion rather than δ-ferrite phase.

Corrosion Resistance of TC4 Alloy Implanted by La+, Mo+

2006 ◽  
Vol 315-316 ◽  
pp. 61-65
Author(s):  
Xiang Feng Li ◽  
Zhong Shan Wei ◽  
Dun Wen Zuo ◽  
Min Wang
Keyword(s):  
Corrosion Resistance ◽  
Ion Implantation ◽  
Surface Treatment ◽  
Chloride Solution ◽  
Chemical Activity ◽  
Opposite Result ◽  
Acidic Chloride Solution ◽  
Tc4 Alloy ◽  
Acidic Chloride ◽  
Implantation Method

The surface treatment for TC4 alloy was conducted by MEVVA ion implantation method. The corrosion resistance of TC4 alloy implanted by La+, Mo+ were measured. It were found that Mo ion implantation improved corrosion resistance of TC4 alloy in acidic chloride solution, but La ion implantation gave the opposite result because they have different chemical activity. The more implanted dose of Mo+, the more improvement of corrosion resistance.

Influence of Surface Pretreatment on the Corrosion Resistance of Cold-Sprayed Nickel Coatings in Acidic Chloride Solution

2018 ◽  
Vol 27 (4) ◽  
pp. 1725-1737 ◽  
Author(s):  
Mieczyslaw Scendo ◽  
Wojciech Zorawski ◽  
Katarzyna Staszewska-Samson ◽  
Medard Makrenek ◽  
Anna Goral
Keyword(s):  
Corrosion Resistance ◽  
Chloride Solution ◽  
Surface Pretreatment ◽  
Nickel Coatings ◽  
Acidic Chloride Solution ◽  
Acidic Chloride

scholarly journals Corrosion Resistance of Aging Heat-Treated Ti-8Mo-5Fe Alloy in Highly Acidic Chloride Solution

2010 ◽  
Vol 51 (9) ◽  
pp. 1553-1559 ◽  
Author(s):  
T. Nishimura ◽  
S. Tamilselvi ◽  
X. H. Min ◽  
K. Tsuzaki
Keyword(s):  
Corrosion Resistance ◽  
Chloride Solution ◽  
Heat Treated ◽  
Acidic Chloride Solution ◽  
Acidic Chloride

Effect of Co-Content on the Corrosion of High Performance Stainless Steels in Simulated Bio-Solutions

2007 ◽  
Vol 342-343 ◽  
pp. 585-588
Author(s):  
Y.R. Yoo ◽  
H.H. Cho ◽  
S.G. Jang ◽  
K.Y. Lee ◽  
H.Y. Son ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Stainless Steels ◽  
High Performance ◽  
316L Stainless Steel ◽  
Impedance Measurement ◽  
Cytotoxicity Test ◽  
Polarization Test ◽  
Acidic Chloride Solution ◽  
Acidic Chloride ◽  
Test Result

This work focused on the effect of Co content on the corrosion resistance of high pitting resistance equivalent (PRE), super ferritic, Ni-free stainless steels in simulated biosolutions. The effect of Co in Ni-free alloys was evaluated by cytotoxicity test. Anodic polarization test and AC impedance measurement were performed to evaluate the effect of Co on corrosion resistance of the alloys. The cytotoxicity test result for 4 experimental alloys shows non-cytotoxic but mild cytotoxic for 316L stainless steel due to relatively poor corrosion resistance. However, the effect of Co on the passivity was positive in bio-solution but it was negative in acidic chloride solution.

Adsorption of AuCl 4 − from Acidic Chloride Solution by Chemically Modified Lignin Based on Rice Straw

2018 ◽  
Vol 26 (2) ◽  
pp. 121-127 ◽  
Author(s):  
Baoping Zhang ◽  
Yun Liu ◽  
Zhongchen Ma ◽  
Meichen Guo ◽  
Bowen Shen
Keyword(s):  
Rice Straw ◽  
Chloride Solution ◽  
Chemically Modified ◽  
Acidic Chloride Solution ◽  
Acidic Chloride ◽  
Modified Lignin
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