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Muenduen Phisalaphong. Effects of molybdate / phosphate passivation treatments for corrosion prevention of carbon steel surface. (). King Mongkut's University of Technology North Bangkok. Central Library. : , 2016.
Effects of molybdate / phosphate passivation treatments for corrosion prevention of carbon steel surface
Name: Wanchat Natpattanit
Organization :
Chulalongkorn University. Faculty of Engineering
Name: Werayut Srituravanich
Organization :
Chulalongkorn University. Faculty of Engineering
Name: Muenduen Phisalaphong
Organization :
Chulalongkorn University. Faculty of Engineering
Email :
muenduen.p@chula.ac.th
LCSH:
Carbon steel
-- Corrosion
LCSH:
Molybdate
LCSH:
Phosphates
Abstract:
Generally, piping and equipment in most industries are manufactured from mild steel
because of its low cost and wide availability. However, corrosion is the main problem
associated with this material. Passivation of mild steel is a process of film coating by
chemical reaction on the metal surface to prevent flash corrosion. In this work, the Molybdate
and Phosphate passivation programs were studied. The recommended dosages and
passivation periods in the manual were used as guidelines for optimizing the experimental
conditions. The results are analyzed by corrosion resistance analysis and surface analysis. In
the corrosion resistance analysis, the passivated coupons were immerged in demineralize
water for one week and then were estimated for corrosion rate by weight loss measurements.
Scanning Electron Microscopy (SEM) was applied for the analysis of surface morphology,
film thickness and film distribution on the passivated coupons. The results show that the
higher chemical concentration and longer passivation period generate thicker and more
effective corrosion resistance film. Nevertheless, prolonged passivation after the optimum
period, after which the coupon surfaces were completely coated, results in only minor effect
on the film formation. Between the two passivation programs, the Molybdate program was
more effective in producing corrosion-resistant films.
King Mongkut's University of Technology North Bangkok. Central Library
Address:
BANGKOK
Email:
library@kmutnb.ac.th
Created:
2016
Modified:
2019-11-20
Issued:
2019-11-20
บทความ/Article
application/pdf
BibliograpyCitation :
In Chemical Society of Thailand under the Patronage of Professor Dr. HRH Princess Chulabhorn and Chulalongkorn University Faculty of science. Pure and Applied Chemistry International Conference (PACCON 2016) (pp.592-595). Bangkok : Chemical Society of Thailand under the Patronage of Professor Dr. HRH Princess Chulabhorn
eng
©copyrights King Mongkut's University of Technology North Bangkok
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0.02606 วินาที
Wanchat Natpattanit
| Title | Contributor | Type |
|---|---|---|
| Effects of molybdate / phosphate passivation treatments for corrosion prevention of carbon steel surface
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าพระนครเหนือ Wanchat Natpattanit;Werayut Srituravanich;Muenduen Phisalaphong | บทความ/Article |
Werayut Srituravanich
| Title | Contributor | Type |
|---|---|---|
| Effects of molybdate / phosphate passivation treatments for corrosion prevention of carbon steel surface
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าพระนครเหนือ Wanchat Natpattanit;Werayut Srituravanich;Muenduen Phisalaphong | บทความ/Article | |
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