"Computational image analysis as an alternative tool for the evaluation of corrosion in salt spray test "

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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Quantification of Bacterial Twitching Motility in Dense Colonies Using Transmitted Light Microscopy and Computational Image Analysis

BIO-PROTOCOL ◽

10.21769/bioprotoc.2804 ◽

2018 ◽

Vol 8 (8) ◽

Author(s):

Benjamin Smith ◽

Jianfang Li ◽

Matteo Metruccio ◽

Stephanie Wan ◽

David Evans ◽

...

Keyword(s):

Image Analysis ◽

Light Microscopy ◽

Transmitted Light ◽

Twitching Motility ◽

Transmitted Light Microscopy ◽

Computational Image Analysis

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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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