Atmospheric SCC of Nuclear Storage Canisters

In this section

Back to Core Research Programme AMorph – 4D Printing for Field Morphing Structures Automation of Composite and Hybrid Joining Process Coaxial Wire Additive Manufacturing Processes and In-Line Monitoring Tools Development of Coded Excitation Technique for Non-Metallic Pipes Inspection Development of Digital Twin technology as a demonstrator for real-time integrity assessment of crack growth in tensile specimens Development of Friction Stir Welding (FSW) for Hydrogen Fuel Storage Tanks Development of Leak-Before-Break Hydrogen Storage Composite Pressure Vessels With Polymeric Liner Establishing Assessment Methods for Determining Safe Service Limits of High-Temperature Materials in Extreme Environments Fracture toughness in aggressive environments: effect of crack monitoring techniques on test results In-process detection and non-destructive testing of electron beam weld imperfections Internal Bore Coatings for Applications in Corrosion and Hydrogen Environment Joining of Additively Manufactured Materials Long term behaviour of polymeric liner materials/coatings in hydrogen service Techniques for High Temperature Ultrasonic Inspection of Arc Welding Ultimate Leverage Fund

Project Code: 0902-07

Objectives

Provide further guidance on environmental limits for the avoidance of AISCC of nuclear storage vessels.

Provide guidance on the likelihood of AISCC in environmental conditions where it may occur during indoor storage.

Assist in developing NDT for AISCC detection.

Project Outline

Specimens taken from welded nuclear storage vessels made from austenitic and duplex stainless steels will be exposed to atmospheres of varying composition and temperature. Relative humidity will be controlled. The specimens will be stressed to varying levels of stress.

Specimens will be subject to NDT inspection during the test programme. This information will be used to investigate the development of SCC cracks, along with destructive methods such as metallography.

Relevant Industry Sectors

Power, Nuclear, Construction and Engineering

Technical and Economic Benefits

This work will benefit designers and fabricators of nuclear storage containers by providing further information on the effect of environmental factors on the susceptibility to AISCC of the different stainless steels used for this application.

This work will benefit users of nuclear storage containers by providing initial information on the detection of growing AISCC cracks in stainless steels.