Analysis Report on Salt Spray Test Technology of Bridge Surface Treatment

Shantou atmospheric salt-fog environment is simulated with the comprehensive salt spray test chamber. By using reinforced concrete short beams under different water-cement radio, different corrosion time, the inclined section degradation rules of the corrosive reinforced concrete members are researched for establishing shear capacity of short beam formulas in salt-fog environment.

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ANTICORROSION PERFORMANCE OF SELF-HEALING POLYMERIC COATINGS ON LOW CARBON STEEL SUBSTRATES

Jurnal Teknologi ◽

10.11113/jt.v79.12268 ◽

2017 ◽

Vol 79 (7-4) ◽

Cited By ~ 1

Author(s):

Muhammad Ashraff Ahmad Seri ◽

Esah Hamzah ◽

Abdelsalam Ahdash ◽

Mohd Fauzi Mamat

Keyword(s):

Steel Substrate ◽

Salt Spray ◽

Immersion Test ◽

Salt Spray Test ◽

Test Method ◽

The Self ◽

Self Healing ◽

Pure Epoxy ◽

Steel Substrates ◽

Epoxy Paint

Recently, self-healing coating is classified as one of the smart coatings which has the ability to heal or repair damage of the coating to prevent further corrosion. The aim of this study is to synthesize the self-healing coatings from polymeric material and evaluate the performance and their corrosion behavior when coated on steel substrates. The corrosion tests were performed using immersion test and salt spray test method at room temperature. The immersion test shows that self-healing coating gives lower corrosion rate compared to pure epoxy paint, with a value of 0.02 and 0.05 mm/year respectively. Also, salt spray test shows similar trend as the immersion test, which is 0.11 and 0.19 mm/year for self-healing coating and pure epoxy paint respectively. While uncoated samples without any protection corroded at 0.89 mm/year. It was also found that the damage on self-healing coating was covered with zeolite from the microcapsules indicating that the self-healing agent was successfully synthesized and could function well. In other words, self-healing coating shows better corrosion resistance compared to the pure epoxy coating on steel substrate.

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The study of the effectiveness of corrosion protection of zinc-rich coating on the base of water sodium silicate

Practice of Anticorrosive Protection ◽

10.31615/j.corros.prot.2020.98.4-4 ◽

2020 ◽

Vol 25 (4) ◽

Keyword(s):

Corrosion Protection ◽

Sodium Silicate ◽

Electrochemical Impedance ◽

Paint Film ◽

Salt Spray ◽

Salt Spray Test ◽

Test Method ◽

Liquid Sodium ◽

Research Station ◽

Marine Research

The study is examines the assessment of the corrosion-protective properties of zinc-rich coating based on water sodium silicate (ZRC) using the Electrochemical Impedance Spectra (EIS) with AutoLAB PGSTAT204N. The system consists of three electrodes: Ag/AgCl reference electrode in 3 M solution of KCl, auxiliary electrode – Pt (8x8 mm) and working electrodes for determination potential (Ecorr) and impedance measurement, salt spray test method and natural teszzt method at Dam Bay Marine Research Station, Nha Trang, Khanh Hoa, Viet Nam. ZSC can provide good cathodic protection when zinc content is 70% by weight or more. ZSC with a mixing ratio of High Modulus Liquid Sodium Glass / Zinc Powde : 25/75 by weight (working title – TTL-VN) has good corrosion protection after 16 cycles salt spray test and after 18 months natural test in seawater. The paint film has basic parameters as adhesion – 4,41 MPa, flexural strength – 2 mm, pendulum hardness – 0,62 conventional units and initial coating potentia l – 0,96 V Ag/AgCl.

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Investigation on dual corrosion performance of magnesium-rich primer for aluminum alloys under salt spray test (ASTM B117) and natural exposure

Corrosion Science ◽

10.1016/j.corsci.2009.11.032 ◽

2010 ◽

Vol 52 (4) ◽

pp. 1453-1463 ◽

Cited By ~ 31

Author(s):

Shashi S. Pathak ◽

Michael D. Blanton ◽

Sharathkumar K. Mendon ◽

James W. Rawlins

Keyword(s):

Aluminum Alloys ◽

Salt Spray ◽

Salt Spray Test ◽

Corrosion Performance ◽

Natural Exposure

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Corrosion behavior of Al film on uranium in salt spray test

RSC Advances ◽

10.1039/c6ra28407h ◽

2017 ◽

Vol 7 (25) ◽

pp. 14981-14988

Author(s):

Yanping Wu ◽

Shengfa Zhu ◽

Peng Shi ◽

Biaojie Yan ◽

Dingzhou Cai ◽

...

Keyword(s):

Corrosion Behavior ◽

Salt Spray ◽

Salt Spray Test ◽

Neutral Salt

The corrosion behavior of Al film coated uranium and bare uranium under neutral salt spray conditions are evaluated.

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Ultrasonic Sensors-Assisted Corrosion Studies on Surface Coated AlSi9Cu3 Alloy Die Castings

Coatings ◽

10.3390/coatings10010085 ◽

2020 ◽

Vol 10 (1) ◽

pp. 85

Author(s):

Yuh-Chung Hu ◽

Senthil Kumaran Selvaraj ◽

Manivannan Subramanian ◽

Kathiravan Srinivasan ◽

Srinivasan Narayanan

Keyword(s):

Corrosion Resistance ◽

Die Casting ◽

Pure Aluminum ◽

Salt Spray ◽

Salt Spray Test ◽

Al Alloy ◽

Neutral Salt ◽

Powder Coatings ◽

Acrylic Paint ◽

Epoxy Primer

A novel phenomenon known as Industry X.0 is becoming extremely popular for digitizing and reinventing business organizations through the adaption of rapid and dynamic technological, innovational, and organizational changes for attaining the profitable revenue. This work investigates the die-casted commercially pure aluminum alloyed with 9% silicon and 3% copper (AlSi9Cu3) that is produced through the gravity die casting process. Further, the degradation of surface coating on die-casted AlSi9Cu3 alloy was explored. The acrylic paint electrodeposition (ED) coat, 2-coat polyester without primer and 3-coat polyester with epoxy primer powder coatings were used in this study. Moreover, the 3.5 wt.% of sodium chloride (3.5 wt.% of NaCl) test solution was used for electrochemical and salt spray test and the tools used to assess electrochemical properties were electrochemical impedance spectroscopy (EIS), potentiodynamic polarization, and neutral salt spray test (NSS). The microstructure of AlSi9Cu3 after corrosion exposure was investigated; also, the microstructure of coated and uncoated AlSi9Cu3 samples was analyzed by SEM microscopy after corrosion exposure. Besides, the electrochemical studies were also carried out on the Al alloy die casting. It was found that acrylic paint ED coatings exhibited higher corrosion resistance than 2-coat polyester without primer & 3-coat polyester with epoxy primer powder coatings. Acrylic paint ED coating showed higher corrosion resistance in AC and a lower value in DC and 3-coat polyester with epoxy primer powder coating displayed higher corrosion resistance in DC and a lower value in AC.

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