A high quality Atlas of Microstructures of Nickel Alloy 625 will be developed for all product forms and welded product for both corrosion-resisting and high temperature CPI applications.
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last person joined 2 months ago
Develop and conduct a program to determine how the degree of surface preparation and substrate material influences the long term performance of composite pipe repair systems
last person joined 6 months ago
MTI project 269-Corrosion Data of the Most Commonly Used Corrosion Resistant Nickel Alloys was successfully completed in December 2017. That MTI project was the first joint effort to collect, analyze, and publish corrosion data of nickel alloys from various major global suppliers. Five typical nickel alloys were selected for corrosion data collection, including Alloy C276, Alloy 22, Alloy 625, Alloy 825, and Alloy 600. The contractor of the project was Industrial Technology Research Institute (ITRI) of Taiwan. After carefully analyzing tens of thousands of test data voluntarily provided by the major suppliers, ITRI team carried out lab corrosion rate study then provided a statistically analyzed corrosion rate and standard deviation for each selected alloy. A final report was published in both English and Chinese. This publication has been approved by many MTI members to be extremely useful, especially when they are doing research on these alloys, selecting these alloy for certain applications, or trying to find a suitable supplier for their new project.
Project 367 is phase II of project 269. The purpose of this new project is to continue the successful effort and collect corrosion data for more nickel alloys of interest by the industry. The team will define the scope of the study candidates, assemble subject experts from member communities, collecting existing data and testing methods from industry then select qualified contractor to carry out the study.
New bio-oil products are now being produced commercially. The processes for producing bio oil can be corrosive, and alloy corrosion data for the new bio oil fuels is not available. There is interest in this topic and a new potential project was established to formulate a project on this topic.
Following project 307 (Literature search and review of DSS at Short Term Elevated Temperatures), and Project 364 (Duplex Stainless Steels at Elevated Temperatures), additional work is needed to evaluate the effects of short term elevated temperatures on DSS welds and HAZ. This follow up project will evaluate an array of 2205 welds after short term exposures at elevated temperatures.
last person joined 25 days ago
This project is to develop an eLearning electronic course available on the internet for FRP inspection of in-service equipment. The course and its content will be owned by MTI.
The scope of this project is to perform a study in order to include in the simulation model developed in the P305:
- Discrimination of the HTHA damages with inclusions by inserting them as a specific modeled item.
- Validation of the model to samples with actual HTHA damage in the welded area.
The objective of this project is to validate the robustness of this new repair technique for GLSE. Ideally the testing will simulate all known failure mechanisms for GLSE that could potentially apply to these patches. This project would perform mechanical and corrosion testing on glass lining bonded to steel. Testing could include: adhesion; strain line; spark; impact (external); impact (internal); abrasion; thermal; compressive; flexure; tensile; chemical; etc.
last person joined 4 months ago
The project proposes an investigation of stainless steels corrosion resistance to Pitting, Crevice and SCC resistance in temperatures above 90oC (194oF) and low chloride amounts. The aim is to complete the existing engineering diagrams.
Produce a catalogue of a variety of NDE responses (ToFD, ,PAUT, TFM/FMC) with corresponding metallographic characterization of carbon steel and carbon 1/2 moly HTHA specimens. Focus will be on incipient damage and HTHA with inclusions ad weld defects and other inclusions.
The main objective of this project is to capture and disseminate knowledge in a way that is broadly accessible to a wide audience. A secondary objective is to utilize the podcast to further establish MTI’s brand and attract new members.
This project will search for a firm that is able to non-destructively detect titanium hydriding in plant equipment. Past MTI titanium hydride projects looked at one specific method with the aim to adapt the method to identify titanium hydriding. This project has a much broader perspective aiming to test all techniques that have the potential to detect titanium hydriding. Industry information suggests that a method already exists. A few companies indicate they can non-destructively detect titanium hydriding. With the goal of discovering the best method to detect titanium hydriding, the project team intends to find out if these firms can prove their techniques.
last person joined 28 days ago
Following the validation of the Simulation model developed in P305, this project intends to use it to determine the best parameters and probes for the Ultrasonic testing of carbon steel damaged by High Temperature hydrogen attack (HTHA) in order to identify early stage HTHA.
The main objectives of this projects can be summed up as follows:
• Definition of optimized procedures and calibration blocks for reliable on-site HTHA detection and characterization
• Redaction of Guideline for Optimized NDT
last person joined 3 months ago
PSA (pressure swing adsorption) pressure vessels are often used in the purification of hydrogen after syngas production. These vessels are manufactured from carbon steel and are welded in accordance to design codes and standards. Due to fluctuations in pressure, these vessels are usually affected by fatigue damage which can be accelerated due to exposure to hydrogen. The purpose of this project is to establish a relevant materials database for PSA steel in hydrogen.
PTFE bellows expansion joints are routinely used in chemical plants. Typically they do not have a metallic housing the way other PTFE equipment and piping have. PTFE is not a structural material hence a housing is needed. Failures of them resulting in safety incidents have occurred resulting in lawsuits as well as banning their use in many companies. The project objective is to collect the state of the art information and create a guideline which promotes the safe and reliable use of them.. Of specific interest is the work done in Europe by a working group led by TUV, BASF and Bayer.
This project follows the completed project 356 which produced an analysis of the existing literature on this topic and guidance on an experimental plant to determine the remaining lifetime of components composed of Alloy 20Cr32Ni after aging at high process temperature. The objective of this project will be to conduct an experimental evaluation of this alloy following aging in a process environment to determine remaining utility for further plant service.
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