All posts by: Gillian Slater

Addressing Several Critical Issues on the Mechanism Co2 Corrosion and its Inhibition

[vc_row][vc_column][vc_acf field_group=”3279″ field_from_3279=”field_5b7cf545d605d” show_label=”yes” el_class=” “][vc_acf field_group=”3279″ field_from_3279=”field_5b7cf51dd605c” show_label=”yes”][vc_acf field_group=”3279″ field_from_3279=”field_5b7cf568d605e” show_label=”yes”][/vc_column][/vc_row][vc_row][vc_column][vc_column_text] Abstract This paper for the PF Thompson memorial lecture concerns CO2 corrosion of carbon steel and its inhibition during petroleum production. Important aspects of the mechanism of CO2 corrosion are covered together with significant advances in understanding corrosion inhibitor mechanism. Some gaps in […]

The Probing of Pipeline Localized Corrosion Using a Novel Designed Ring Pair Electrical Resistance Sensor Array

[vc_row][vc_column][vc_acf field_group=”3279″ field_from_3279=”field_5b7cf545d605d” show_label=”yes” el_class=” “][vc_acf field_group=”3279″ field_from_3279=”field_5b7cf51dd605c” show_label=”yes”][vc_acf field_group=”3279″ field_from_3279=”field_5b7cf568d605e” show_label=”yes”][/vc_column][/vc_row][vc_row][vc_column][vc_column_text] Abstract In this paper, a new method has been proposed to study the localized corrosion of pipeline different areas based on the multiple ring pair electrical resistance sensor (RPERS) array. The sensor array arranged multiple sets of ring pairs along the flow direction, […]

Corrosion Behaviour of Ni-Cr Alloys in Oxygen at High Temperature

[vc_row][vc_column][vc_acf field_group=”3279″ field_from_3279=”field_5b7cf545d605d” show_label=”yes” el_class=” “][vc_acf field_group=”3279″ field_from_3279=”field_5b7cf51dd605c” show_label=”yes”][vc_acf field_group=”3279″ field_from_3279=”field_5b7cf568d605e” show_label=”yes”][/vc_column][/vc_row][vc_row][vc_column][vc_column_text] Abstract To meet an increased energy demand, it is necessary to increase steam turbine operating temperature of coal-fired power plant from conventional practice of 540°C to ultra/advanced ultra-supercritical practice over 700°C. Because of this temperature increase, traditional ferritic/martensitic and austenitic steels cannot survive. […]

The study of water-line corrosion in static and dynamically flowing electrolytes using multi-electrode sensor in combination with electrical resistance method

[vc_row][vc_column][vc_acf field_group=”3279″ field_from_3279=”field_5b7cf545d605d” show_label=”yes” el_class=” “][vc_acf field_group=”3279″ field_from_3279=”field_5b7cf51dd605c” show_label=”yes”][vc_acf field_group=”3279″ field_from_3279=”field_5b7cf568d605e” show_label=”yes”][/vc_column][/vc_row][vc_row][vc_column][vc_column_text] Abstract In this work, a new sensor system was developed based on an integrated multi-electrode technique in conjunction with an electrical resistance (ER) method. This new method has allowed galvanic currents flowing among the multi-electrodes and the total metal loss simultaneously measured. On […]

No one cares about the paint – a specifier’s perspective

[vc_row][vc_column][vc_acf field_group=”3279″ field_from_3279=”field_5b7cf545d605d” show_label=”yes” el_class=” “][vc_acf field_group=”3279″ field_from_3279=”field_5b7cf51dd605c” show_label=”yes”][vc_acf field_group=”3279″ field_from_3279=”field_5b7cf568d605e” show_label=”yes”][/vc_column][/vc_row][vc_row][vc_column][vc_column_text] Abstract This presentation will light-heartedly discuss topics to specifically address issues that are of interest to protective coating manufacturers and will offer a unique insight into the inner workings of large engineering firms with respect to materials selection and the preparation of protective […]

A Two-Stage Corrosion Protection System for Reinforced Concrete Structures

[vc_row][vc_column][vc_acf field_group=”3279″ field_from_3279=”field_5b7cf545d605d” show_label=”yes” el_class=” “][vc_acf field_group=”3279″ field_from_3279=”field_5b7cf51dd605c” show_label=”yes”][vc_acf field_group=”3279″ field_from_3279=”field_5b7cf568d605e” show_label=”yes”][/vc_column][/vc_row][vc_row][vc_column][vc_column_text] Abstract Electrochemical corrosion protection techniques including impressed current cathodic protection (ICCP), galvanic corrosion protection (GCP) and electrochemical treatments (ECE and Re-Alk) are well known and widely used to protect reinforced concrete structures globally. Each of these techniques have inherent advantages and disadvantages which […]

Impregnation Technique Extends the Service Life of Post-Tensioned Bridges with Grout Defects

[vc_row][vc_column][vc_acf field_group=”3279″ field_from_3279=”field_5b7cf545d605d” show_label=”yes” el_class=” “][vc_acf field_group=”3279″ field_from_3279=”field_5b7cf51dd605c” show_label=”yes”][vc_acf field_group=”3279″ field_from_3279=”field_5b7cf568d605e” show_label=”yes”][/vc_column][/vc_row][vc_row][vc_column][vc_column_text] Abstract Many bridges and other structures have been constructed using grouted post-tension (PT) tendons. Problems with grouting techniques and grout materials has resulted in grout voids, chloride contaminated grout, and segregated grout. Subsequently corrosion of the PT tendons can occur and some tendons […]

Flange Face Corrosion in Seawater and Hydrocarbon Environment Related to Gasket Material Selection

[vc_row][vc_column][vc_acf field_group=”3279″ field_from_3279=”field_5b7cf545d605d” show_label=”yes” el_class=” “][vc_acf field_group=”3279″ field_from_3279=”field_5b7cf51dd605c” show_label=”yes”][vc_acf field_group=”3279″ field_from_3279=”field_5b7cf568d605e” show_label=”yes”][/vc_column][/vc_row][vc_row][vc_column][vc_column_text] Abstract Bolted flange joints in seawater and hydrocarbon services can be vulnerable to gasket degradation and flange face corrosion. In its document on corrosion management, the UK’s Energy Institute ranks corrosion as the second most frequent cause in initiating loss of hydrocarbon containment […]

Proposed Recommended Practice for Coating Dry Film Thickness Measurement Over Concrete

[vc_row][vc_column][vc_acf field_group=”3279″ field_from_3279=”field_5b7cf545d605d” show_label=”yes” el_class=” “][vc_acf field_group=”3279″ field_from_3279=”field_5b7cf51dd605c” show_label=”yes”][vc_acf field_group=”3279″ field_from_3279=”field_5b7cf568d605e” show_label=”yes”][/vc_column][/vc_row][vc_row][vc_column][vc_column_text] Abstract Non-Destructive Testing [NDT] techniques used within or over concrete are less standardized than equivalent tests for Metal Substrates. Guidelines may differ between manufacturers, specifications and supplier details, limiting the effectiveness of NDT techniques for evaluation of concrete structures. Coatings over concrete have […]

Further Observations on the Performance of Geomembrane Materials in Floating Cover Applications in Australia

[vc_row][vc_column][vc_acf field_group=”3279″ field_from_3279=”field_5b7cf545d605d” show_label=”yes” el_class=” “][vc_acf field_group=”3279″ field_from_3279=”field_5b7cf51dd605c” show_label=”yes”][vc_acf field_group=”3279″ field_from_3279=”field_5b7cf568d605e” show_label=”yes”][/vc_column][/vc_row][vc_row][vc_column][vc_column_text] Abstract In 2011 Moore et al reported on the performance of polypropylene liners and covers in the South Australian potable water industry. It was found that this material suffered accelerated oxidation and premature failure when exposed to chlorinated and chloraminated potable water. Given […]