ProgramMaster Logo
Conference Tools for Materials Science & Technology 2020
Register as a New User
Submit An Abstract
Propose A Symposium
Presenter/Author Tools
Organizer/Editor Tools
About this Abstract
Meeting Materials Science & Technology 2020
Symposium Advanced Steel Metallurgy
Presentation Title Silicide Strengthened Ferritic Alloy - A New Method of Wear Protection in Nuclear Environments
Author(s) Rahul Unnikrishnan, David Bowden, Michael Preuss
On-Site Speaker (Planned) Rahul Unnikrishnan
Abstract Scope Cobalt-based alloys have been traditionally used for hard facing applications in pressurized water reactors. There has been an interest in developing cobalt-free hard facing alloys as cobalt wear debris transported to reactor core becomes reactive 60Co, increasing radiation levels. A high-hardness intermetallic phase, named π-ferro-silicide, was recently discovered in a stainless steel hard facing alloy. This study involves developing cobalt and carbon-free silicide based hard facing alloys. Two high strength silicide based alloys, one with a duplex ferrite/silicide and other with a triplex ferrite/austenite/silicide phase has been developed. These high strength alloys can accommodate more than 20% of compressive strain while showing maximum strengths of 1.5-1.75 GPa. The high strength is a result of uniformly distributed fine precipitates of silicide phase in ferrite matrix achieved by thermo-mechanical processing. Also, the orientation relationship between silicide and ferrite interface make these alloys promising material for wear-resistant applications.


Digital Innovative Design (DID) for Reliable Casting Performance of Steel Castings
Double-Twist Torsion Testing to Assess Partial Recrystallization in Microalloyed Steels
Effect of Coiling and Annealing Temperature on Nb precipitation, Microstructure and Mechanical Properties of HSLA
Microstructure Characterization and Post-heat Treatment Design for High-Strength Low-alloy Steels Strengthened with Fe2SiTi-L21 Precipitates
Microstructure Property Relationships of Al- alloyed Medium Manganese Steels
Modeling and Experimental Validation of the Precipitation Kinetics of Vanadium Carbide in Austenitic Steel
Modelling of Precipitation and Grain Growth in Ti-Nb Microalloyed Steels
Relationship between Microstructure and Tensile Properties on High Strength Medium Carbon Mo-Nb-B Microalloyed Q/Q&T Steels
Silicide Strengthened Ferritic Alloy - A New Method of Wear Protection in Nuclear Environments
Strain Aging Embrittlement of Structural Steel
Study of the Effect of Accumulative Angular Drawing Process Conditions on Grain Refinement in Selected Stainless Steel Grade
Triple Nano-precipitate Strengthened Austenitic Steel

Questions about ProgramMaster? Contact