Enabling you to identify and mitigate the intrinsic risk in your operations, supply chains and business processes.
Evaluating how your products and services meet and exceed quality, safety, sustainability and performance standards.
Validating the specifications, value and safety of your raw materials, products and assets.
What you should know to avoid failures.
Banner image description: A wine tank perforated in 14 days after being filled with bore water to stabilise it against strong wind conditions when delivered to a winery. The tanks had poor weld fabrication and when filled with high salinity water containing bacteria, the 316 grade of stainless steel did not stand a chance.
Stainless steel is an excellent material, but it requires a great deal of attention, something that is often missing when engineers simply specify stainless steel for corrosion resistance, thinking problem solved.
Stainless steels are just that, they tend to corrode less than most steels but liquid containing equipment can perforate very quickly. Only one attack site is needed to cause a failure. These groups of materials rely on a complex passive layer that requires a suitable oxidising environment; too little and the protective passive layer does not adequately form or reform, too much and pitting will accelerate as the passivity is locally destroyed.
What can cause these issues?
Drs Peter Kentish and Joe Cavallaro have between them decades of experience in corrosion, failure analysis and materials examinations/testing.
They are based at Intertek-AIM, Adelaide, South Australia.
Dr. Peter Kentish is a Metallurgist with a PhD on the subject of stress corrosion cracking in high pressure gas pipelines. He has extensive experience in failure analyses, corrosion investigations and materials testing for mining, manufacturing, construction, fabrication, energy generation, insurance loss adjusting and as an expert witness in litigation.