Dr Margarita Vargas, a Charles Darwin University researcher will provide an insight into the cutting edge corrosion research being conducted at the North Australian Centre for Oil and Gas (NACOG) at an event on 25 September.
Dr Vargas will present her research as part of the Corrosion and Solutions for the Water and Wastewater Industries event to be held at NACOG.
Corrosion-related damage costs the industry between 3 and 5 per cent of GDP, which equates to trillions of dollars each year worldwide. The research at NACOG focuses on corrosion-related issues relevant to the oil and gas industry in tropical environments.
Dr Vargas explains that microbiologically influenced corrosion (MIC) is a problem in structures immersed in sea waters as well as in many other microbiologically active environments. The NACOG research aims to find out how marine organisms affect the corrosion behaviour of structural materials such as pipelines and offshore rigs.
According to Dr Vargas, microbes and microbial metabolism can create conditions for the corrosion of metals even when the material is thought to be immune to corrosion. The study is especially important, because the oil and gas industry produces a number of microbes from drilling sites in addition to what is found in marine environments.
Dr Vargas will present the results of MIC on duplex stainless steel and its weldments in the presence of marine sulphate reducing bacteria in a chloride environment, and will discuss the correlation between the duplex stainless steel microstructure, bacterial activity and biofilm formation on the accelerated degradation of such materials.
The event will be held on Wednesday, 25 September from 5pm to 7pm at the NACOG, Building Pink 7, CDU Casuarina campus.