S.B. Valdez, R.K. Zlatev, W.M. Schorr, G.N. Rosas, Ts. Dobrev, M. Monev and I. Krastev
To develop and test a rapid method for evaluation of the corrosion protection (CP) of carbon steel (CS) by vapour corrosion inhibitors (VCI) films.
Abstract
Purpose
To develop and test a rapid method for evaluation of the corrosion protection (CP) of carbon steel (CS) by vapour corrosion inhibitors (VCI) films.
Design/methodology/approach
The determination of the CP by VCI on CSs is commonly carried out in a chamber applying neutral salt spray (NSS) and usually it takes many days. The common disadvantage of the various rapid methods created until now is the need of special laboratory equipment making their application complicated and inconvenient for field tests. The method for CP measurement of VCI films on CS described in this study is based on measurement of the height of the anodic peak under galvanostatic condition applied earlier on other types of films and coatings. By means of a calibration plot: peak height (V) vs NSS protection time (s), CP of VCI films on CS specimens expressed in hours NSS is determined in a few seconds without using an NSS chamber. Measurements of CP by VCI films under field conditions are performed applying a hand held tester.
Findings
Two groups of CS UNS G10180 steel specimens with increasing thickness of VCI films were studied – one in an NSS chamber and the second by the application of a corrosion tester. The correlation between the results obtained for the two groups of specimens was found and a calibration plot was made.
Practical implications
Based on this method, a special corrosion tester was developed, able to measure under field conditions as well.
Originality/value
The method subject of the paper is a further development of a galvanostatic method developed by the authors for CP evaluation of chromate films of Zn and Cd coatings. The method was modified according to the properties of VCI films
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Mario Celso Genovez, Luiz Henrique Araujo, Tiago Dinis Pinto and Radim Hrdina
This paper aims to describe the results of lab testing of a newly developed organic inhibitor V-active VCIs. The findings demonstrate that it is possible to eliminate or reduce…
Abstract
Purpose
This paper aims to describe the results of lab testing of a newly developed organic inhibitor V-active VCIs. The findings demonstrate that it is possible to eliminate or reduce the oxidizing action of water, thereby extending the allowable time before painting after hydrojetting, and that the new corrosion inhibitor technology does not interfere with the final quality of paint adhesion.
Design/methodology/approach
Metallic specimens were treated/washed in standard lab condition. A 2 per cent V-active VCI SPH1712 water solution was prepared by diluting the inhibitor in industrial water. Metal sample plates were examined after blasting and after subsequent drying, and were submitted to the paint adhesion tests, cathodic disbondment, total soluble salts, time for formation of flash rust and cyclic corrosion test type III (20 cycles), to evaluate the duration of temporary protection and oxidation prevention and influence on paint adherence.
Findings
Using the V-active VCI proposed technology, it was possible to minimize or eliminate the oxidizing action of the water when the metal is exposed to saline moisture in a closed environment, extending the acceptable time before painting without interfering with the final quality of painting.
Practical implications
The proposed technology allows an increase in the prepared (wet blasted) steel surface during cleaning and preparation, thereby reducing labor and product costs, and reduces water consumption during the preparation process. Practical applications in the shipbuilding, ship maintenance and oil and gas production industries include the preservation of internal tubes and pipes, protection during hydrostatic test processes and cleaning with water and corrosion prevention in diesel tanks contaminated with water.
Originality/value
The intent of this paper is to present the obtained results for a new formulation of organic chemical inhibitors that use water as the application medium. In addition to this property, this group of organic inhibitors maintains the properties of volatile inhibitors. Thus, these compounds are generically known as V-active VCIs.
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Mário Celso Genovez, Luiz Henrique Araújo, Tiago Dinis Pinto and Radim Hrdina
This work describes test results that were obtained using a newly-developed type of organic inhibitor: V-active VCIs. The findings demonstrate that is possible to eliminate or…
Abstract
Purpose
This work describes test results that were obtained using a newly-developed type of organic inhibitor: V-active VCIs. The findings demonstrate that is possible to eliminate or reduce the oxidizing action of water, thereby extending the allowable time before painting after hydrojetting, and that the new corrosion inhibitor technology does not interfere with the final quality of paint adhesion.
Design/methodology/approach
Metallic specimens were treated/washed by hydrojet (35000 Psi). It was employed as a 2 per cent V-active VCI SPH 1,712 water solution by dilution of the inhibitor in industrial water. Metal sample plates were examined after blasting and after subsequent drying, and were submitted to the paint adhesion tests, to evaluate the duration of temporary protection, oxidation prevention and influence on the adherence of paint (pull off).
Findings
Using the V-active VCI proposed technology, it was possible to minimize or eliminate the oxidizing action of the water when the metal is exposed to the saline moisture in a closed environment, extending the acceptable time before painting without interference in the final quality of painting.
Practical implications
The proposed technology allows to the area of prepared (wet blasted) steel surface to be increased during cleaning and preparation, thereby reducing labor and product costs, and reduces water consumption during the preparation process. Practical applications in the shipbuilding, ship maintenance and oil and gas production industries, include the preservation of internal tubes and pipes, protection during hydrostatic test processes and cleaning with water and corrosion prevention in diesel tanks contaminated with water.
Originality/value
The intent of this paper is to present the obtained results for a new formulation of organic chemical inhibitors that use water medium as the application method. In addition to this property, this group of organic inhibitors maintains the property of volatile inhibitors. Thus, these compounds are generically known as V-active VCI.
Details
Keywords
Sofyan Sufri and Said Devi Elvin
Aceh province has established various infrastructure and regulations related to disaster risk and management after the Indian Ocean Tsunami (IOT) hit the province. Hence, this…
Abstract
Purpose
Aceh province has established various infrastructure and regulations related to disaster risk and management after the Indian Ocean Tsunami (IOT) hit the province. Hence, this study investigates the implementation of Disaster Risk Reduction (DRR) in Public Facilities (PFs) in Banda Aceh municipality using implementation outcome variables (acceptability, adoption, appropriateness, feasibility, compliance, implementation cost, coverage and sustainability).
Design/methodology/approach
Qualitative methods, including in-depth interviews and document reviews, were applied to collect data for this study. The data were then analysed thematically using NVivo 12 software.
Findings
The lack of public communication regarding DRR in PFs to all involved stakeholders resulted in poor acceptability, adoption, coverage and compliance with the policy implementation among public facilities’ chiefs, owners or managers. Additionally, they were reluctant to implement DRR plans and activities within their facilities due to limited DRR funds.
Practical implications
This study’s results can contribute to reviewing the policy and practices of Aceh government authorities and other involved stakeholders to improve policy implementation of DRR activities comprehensively across eight groups of public facilities in Banda municipality, other districts in Aceh province, and local areas in Indonesia. Further, the methods used in this study to assess DRR regulations’ progress towards the eight implementation outcome variables can be applied widely to other settings.
Originality/value
No research was found on examining the policy implementation of DRR in PFs in Aceh province, which motivated the author to conduct this work.
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Hasyim Haddade, Askar Nur, Muhammad Nur Akbar Rasyid and Abd Raviq R.
The purpose of this study is to demonstrate the strategy and innovation of the Faculty of Adab and Humanities in developing the quality of education in digital era by using…
Abstract
Purpose
The purpose of this study is to demonstrate the strategy and innovation of the Faculty of Adab and Humanities in developing the quality of education in digital era by using anthropology of education approach.
Design/methodology/approach
In accordance with the research purpose to demonstrate the strategy and innovation of the Faculty of Adab and Humanities in developing the quality of education in the digital era using an educational anthropology approach, the method used is descriptive qualitative, which refers to data in the form of interviews obtained from the field.
Findings
The results of this research indicate that there are strategies and innovations to develop the quality of higher education at the Faculty of Adab and Humanities in the digital era. These include adjusting the curriculum with the context of the era, implementing the learning process based on research and reinforcing on aspects of digital literacy among students through the innovation of the library based on digital.
Originality/value
This study can be considered in the process of evaluating policies related to quality reinforcing strategies and innovations at the Faculty of Adab and Humanities in facing the challenges of the times. The study is only limited to tracing and analyzing strategies and innovations to reinforce education in the Faculty of Adab and Humanities and their impact on human resource development. For further research, it can be done in more detail and depth and on a larger scale.
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Muhammad Dimyati, Prakoso Bhairawa Putera, Chichi Shintia Laksani, Muhammad Zulhamdani, Setiowiji Handoyo, Yan Rianto and Laksana Tri Handoko
This paper aims to identify the strengths of the universities based on the research area which are prioritized by the Government of Indonesia in the National Medium Term…
Abstract
Purpose
This paper aims to identify the strengths of the universities based on the research area which are prioritized by the Government of Indonesia in the National Medium Term Development Plan 2015–2019, in the research areas of food and agriculture; energy, new and renewable energy; health and medicine; transportation; telecommunication, information and communication; defense and security technologies and advanced materials.
Design/methodology/approach
The mapping of the research strength in Indonesian universities is performed by using data of the university research output in the Information System for Research and Community Service, Ministry of Research, Technology and Higher Education and categorized into seven categories, i.e. accredited national journals, international journals indexed by Scopus or others, Intellectual Property ownership, textbooks, prototypes and an appropriate technology. Based on the data obtained from Information System for Research and Community Service, there are 904 universities in Indonesia conducting research activities and generating 14,188 research outputs.
Findings
This paper analyzes 3 of the 9 National Research Priorities, namely, food, energy and health and medicine. The data show that there are 904 universities in Indonesia conducting research activities and producing 14,188 research results. The research strength index based on National Research Priorities shows that three universities have the highest cluster strength index. Gadjah Mada with an index value of 4.95 is the highest index in the food cluster. In the energy cluster of the Institut Teknologi Bandung with the highest index value of 0.63. Meanwhile, the Universitas Indonesia reached 2.06 as the highest index value in the health and medicine cluster.
Originality/value
Measurement of the strength of the study was conducted using data from research results from universities in 2016 which were recorded in the Information System for Research and Community Service. The University’s R&D strength is calculated from seven categories of research results: accredited national journals, international journals indexed by Scopus or others, intellectual property rights, textbooks, prototypes and appropriate technology products.