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Phase 1 (MTI project #386) qualified an additive material manufacturing procedure using the Gas Metal Arc Directed Energy Deposition method (GMA-DED) and ER-2594 wire filler metal (equivalent to super duplex stainless steel UNS S32750) per the requirements of sections 1-4 and 6 in ASME Code Case and ASME Section IX, Part QW, Article VI suitable for equipment fabrication. The Phase 2 project objective is to use the results from Phase 1 to fabricate a small ASME vessel with a combination of wrought metal and AM metal vessel shell sections, heads, and flanges. The vessel would be tested to learn the suitability of vessel fabrication using GMA-DED with type of super duplex alloy for vessel fabrication.
last person joined 14 days ago
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Rotating equipment components often have long lead time due to complexities of the design. Many components are manufactured through a combination of casting and/or complex machining. Economic pressures have resulted in the consolidation of many OEM manufacturers, with globalized supply chain leading to additional consolidation of manufacturing capabilities. Advancements in 3D Digital Reproduction and Additive Manufacturing offer potential alternatives to address these issues by providing alternative methods for manufacturing components with complex geometries. The objective of this project is to develop guidance on how and when to utilize AM methods to build rotating equipment components.
last person joined 2 months ago
An Alloy 625 vessel with heads, piping, welds, and flanges that was operated at the lower temperature regime of the TTT curve with exposure of about 40,000 hours. The project objective is to create an addendum to the Atlas of Microstructures for 625 with analysis of this material that would document the microstructure of this alloy with actual long term service exposure at moderate temperature.
Proposal is to go back to the previous topics – record with voice dialogue and make into webinars or short training videos
last person joined one year ago
Provide the industry with a comprehensive, introductory and overview book on ceramics and refractories for the Chemical Process Industry (CPI). A book will be written on new design and construction, repairs and inspections for all types of ceramic materials including acid brick, carbon brick, castables, ceramic fiber, graphite, high temp refractory, rammed materials, anchor, linings and ferrule materials. Installation and Inspection will also be covered. Each topic will be given approximately 10 pages. Additional topics that may be covered include mortar joint sizing, installation and repair, inspection and monitoring (Thermography, UT, Visual).
last person joined 8 months ago
Study the corrosion behavior of bio-oil under low temperature conditions where carbon steel, low-alloy, and 3XX materials may or may not have acceptable corrosion rates. Additional work includes a surface corrosion study and report of Phase 0, Phase 1, and Phase 2 coupons.
last person joined 3 days ago
Develop design methodology for FRP full face and lap joint flanges. once a design methodology is developed Flanges shall be validated via FEA and pressure testing
last person joined 28 days ago
project team formed to develop continuing dual laminate and FRP inspection training - initially plan for 2026 and tentatively every two years thereafter.
last person joined 10 days ago
The project objective is to investigate the relationship between various shot peening parameters on the galling and corrosion resistance of select nickel-based alloys.
The book, “MTI MANUAL NO. 8 FRACTURE CONTROL FOR THE CHEMICAL PROCESS INDUSTRIES” by D. Broek was published in 1983. It is a very instructive book aimed at providing a solid understanding and appreciation of the basics of fracture mechanics and its use to a technical audience not expert in this technology. Many technical developments in the use of fracture mechanics applied to process equipment have occurred in the 40 years since the 1983 publication. This book is of high quality and explains the basics very well. It is believed that there is merit to updating this document in the teaching style it is written to benefit process industry professionals.
last person joined one month ago
last person joined yesterday
The objective of this project is to identify corrosion data for aqueous lithium halide systems useful for CPI processes that is not available in the literature. Laboratory corrosion tests will be funded to create the needed data for use by MTI members.
last person joined 3 months ago
NH3-cracking is very different from NH3-synthesis and any ranking of materials regarding resistance against NH3-cracking is almost unknown, because of the higher temperatures (600-900°C) and much higher nitriding potentials. This project aims describe the nitriding effects - and what can be done to prevent/delay those - in 100% NH3 (with and without 0,2% water) between 200 and 550°C. Nitriding experiments under pressurized conditions shall be undertaken to determine the resistance of various alloys. Pre-oxidation and its effective parameters as a mitigation towards nitriding will be part of the test plan.
NH3-cracking is very different from NH3-synthesis and any ranking of materials regarding resistance against NH3-cracking is almost unknown, because of the higher temperatures (600-900°C) and much higher nitriding potentials. This project aims describe the nitriding effects - and what can be done to prevent/delay those - in 100% NH3 (with and without 0,2% water) during the process step of pre-heating the ammonia at temperatures between 200 and 550°C. Nitriding experiments under pressurized conditions shall be undertaken to determine the resistance of various alloys. Pre-oxidation and its effective parameters as a mitigation towards nitriding will be part of the test plan.
last person joined 4 months ago
Polymeric coatings for protection of carbon steel may to be a protentional solution for solving several corrosion problems for biounits and pretreatment unit fuels. The suitability of such coating solutions shall be addressed in this project.
ASSET (Alloy Selection System for Elevated Temperature) is a powerful high temperature corrosion prediction program that was developed in a JIP with MTI, Shell and others with DOE funding in 2000-2005. Action is required to update the software and improve its functionalities so that it can continue to be of value to MTI members.
last person joined 22 days ago
AMPP SP0170 provides guidance on the sensitization temperature range for common stainless steel grades. There is evidence from observations made in operating plants that these current temperature ranges might be overly conservative. This project will focus on reevaluating the long-term minimum temperature limits for sensitization of chemically stabilized stainless steel grades, 321 and 347. The aim is to determine if a higher minimum sensitization temperature can be supported from recent technical literature and lab testing. By validating higher sensitization temperature limits, there may be reduced demand for soda ash wash operations to prevent polythionic acid stress corrosion cracking.
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