|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Energy Materials 2017: Materials for Coal-Based Power
||Solid Sate Joining of Creep Strength Enhanced Ferritic Steels
||Glenn Grant, Jens Darsell, Arun Devaraj
|On-Site Speaker (Planned)
Creep Strength Enhanced Ferritic (CSEF) Steels show a combination of excellent creep resistance, moderate oxidation resistance, lower cost and improved thermal conductivity over austenitic steels and nickel alloys. The next generation of power plant design will require plant materials to be operated at higher temperature and pressure. A primary problem in the high temperature application of welded CSEF steels is the propensity of the fusion welds in these steels to display a creep life far below the parent material. This has led to inefficient up-gaging in wall thickness and low weld-strength reduction factors in design. This presentation will describe research to show that solid state joining (friction stir welding), can enable higher creep performance when compared to fusion welds. Data will be presented on the weld process, microstructure and creep performance of friction stir welds in P91, P92 and new Boron Nitrogen 9-12 Cr ferritic steels.
||Planned: Stand-alone book in which only your symposium’s papers would appear (indicate title in comments section below)