Corrosion Chronicles

In this episode, co-hosts Heather Allain and Marc Cook welcome Hisham Abu Samra of Corrosion Resistant Technologies for a discussion on equipment with loose polymer liners and the important design, fabrication, and maintenance considerations that come with their use. Hisham explains how loose liners work and explores key factors affecting their performance, including differential thermal expansion, temperature limitations, flange design, flare radii, and shell fabrication. The conversation also covers specifications and standards, vacuum design, permeation, and the challenges of replacing liners in existing equipment. Hisham shares insights into welding requirements, weld factors, and inspection techniques, while highlighting considerations for high-purity services and the importance of proper design and material selection in achieving reliable, long-term equipment performance. This episode is sponsored by Tricor Metals and Rolled Alloys.   Corrosion Chronicles is produced by Association Briefings.

In this episode, co-hosts Heather Allain and Marc Cook welcome Gordon Johnson, site development manager at Solenis, for a wide-ranging discussion on water systems and the challenges of maintaining efficient, reliable heat exchanger performance. Gordon breaks down the “cooling water triangle” of bioaccumulation, deposits and corrosion, and explains how each can affect equipment performance and water treatment strategies. The conversation explores heat exchanger design, biofilm removal, online cleaning methods and alternative approaches to water treatment, as well as the environmental considerations surrounding drinking and industrial water. Gordon also looks back at the replacement of hexavalent chromium, or Chrome 6, in water systems and its connection to the origins of MTI, while discussing when alloy upgrades and protective coatings can help address water-side corrosion and extend equipment life. This episode is sponsored by Tricor Metals and Rolled Alloys.   Corrosion Chronicles is produced by Association Briefings.

In this episode, co-hosts Heather Allain and Marc Cook welcome Bruce Hebb, senior engineer at RPS Composites Inc., for a deep dive into fiber-reinforced plastic (FRP) flange design and the factors that influence performance and reliability. Bruce explains the differences between full-face, raised-face and lap joint, or Vanstone, flange configurations, including how gasket selection, bolt torque and load distribution can affect sealing and stress on FRP components. The conversation explores current ASME design standards, the importance of proper construction methods and the challenges engineers face when specifying and evaluating FRP flanges. Bruce also discusses an ongoing MTI project focused on developing a standardized design procedure for lap joint flanges using finite element analysis and physical testing, with the goal of providing end users and fabricators with clearer, more consistent guidance for designing and building reliable FRP flange systems. This episode is sponsored by Tricor Metals and Rolled Alloys.   Corrosion Chronicles is produced by Association Briefings.

In this episode, co-hosts Heather Allain and Marc Cook welcome Maria Jose Oestergaard to explore three essential reliability and continuous improvement tools: Failure Modes, Effects, and Criticality Analysis (FMECA), Root Cause Analysis (RCA), and Value Engineering (VE). Maria Jose explains when to use each methodology, how to define the scope of an analysis, and the importance of assembling the right team and documenting findings throughout the process. She also discusses common triggers for implementing these tools, how organizations can leverage the results to improve performance, and when it makes sense to rely on internal expertise versus outside consultants.   This episode is sponsored by Tricor Metals and Rolled Alloys.   Corrosion Chronicles is produced by Association Briefings.

In this episode, Michael Krauss, sales director at Knight Material Technologies, joins co-hosts Heather Allain and Marc Cook to discuss bonded lining systems and the materials considerations that influence long-term performance. Michael explains the different types of fabric backings, adhesives, and their ideal applications, while outlining best practices for installing bonded sheets and verifying bond integrity through pull-off testing and nondestructive evaluation methods. The conversation also highlights MTI research on cap strips and current work examining temperature ramp rates for bonded liners, offering practical insights for engineers and plant operators seeking to improve reliability and extend equipment life. This episode is sponsored by Tricor Metals and Rolled Alloys.   Corrosion Chronicles is produced by Association Briefings.   Show notes   Polymer Cap Strip Welding Project Final Report - https://access.mti-global.org/record/900?v=pdf   FEA Based Analysis of Thermal Ramp Rate Effects on Thermoplastic Liner Adhesion (445) - https://www.mti-global.org/communities/community-home/librarydocuments?LibraryKey=7e6c78de-dcd7-4090-b9d8-019bb284a855