scholarly journals Corrosion Resistance of Concrete Specimens subjected to Sulphate Solution.(Dept.C)

2021 ◽  
Vol 12 (2) ◽  
pp. 30-39
Author(s):  
M. El-Shabrawy ◽  
A. Abdel-Reheem ◽  
F. Al-Hakeem ◽  
M. Emam
Keyword(s):  
Corrosion Resistance ◽  
Sulphate Solution

Study on the Corrosion Resistance of Polymer-Modified Reactive Powder Concrete

2011 ◽  
Vol 250-253 ◽  
pp. 548-553
Author(s):  
Dong Lin ◽  
Yu Fei Yuan ◽  
Zi Yun Wen
Keyword(s):  
Corrosion Resistance ◽  
Flexural Strength ◽  
Loss Rate ◽  
Processing Condition ◽  
Strength Loss ◽  
Sulphate Solution ◽  
Reactive Powder Concrete ◽  
Polymer Modification ◽  
Eds Analysis ◽  
Reactive Powder

In ordinary processing condition, using small amount (2%) of polymer to modify reactive powder concrete (RPC), the performance of modified and unmodified RPC was studied for their corrosion resistance with water-dip-in, acid-dip-in and sulphate solution-dip-in tests and was verified by the strength loss rate. The results show that not only the corrosion resistance but also the strength, especially the flexural strength, has been improved obviously after the polymer modification. The mechanism has been studied with SEM and EDS analysis.

Microstructures of Ti-1.5 w/o Ni Alloys with Mo and A1 Additions

1975 ◽  
Vol 33 ◽  
pp. 54-55
Author(s):  
Anna C. Fraker
Keyword(s):  
Corrosion Resistance ◽  
Beneficial Effect ◽  
Crevice Corrosion ◽  
Local Corrosion ◽  
Precipitate Size ◽  
Ni Alloys

Small amounts of nickel are added to titanium to improve the crevice corrosion resistance but this results in an alloy which has sheet fabrication difficulties and is subject to the formation of large Ti2Ni precipitates. These large precipitates can serve as local corrosion sites; but in a smaller more widely dispersed form, they can have a beneficial effect on crevice corrosion resistance. The purpose of the present work is to show that the addition of a small amount of Mo to the Ti-1.5Ni alloy reduces the Ti2Ni precipitate size and produces a more elongated grained microstructure. It has recently been reported that small additions of Mo to Ti-0.8 to lw/o Ni alloys produce good crevice corrosion resistance and improved fabrication properties.

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