Wear-Resistant Materials for Coal Conversion and Utilization. Second Progress Report, January 1981-March 1981

摘要

This program is to evaluate the erosion-, abrasion- and galling-resistance of valve materials and materials processing methods for improved wear in coal conversion and utilization components. The research is organized into four tasks: erosion testing of potential valve materials at several particle velocities and impingement angles, support to Morgantown Energy Technology Center (METC) valve development program, liaison and consultation to DOE contractors on materials for wear resistance, and testing of laser-processed valve seats in coal ash. Erosion studies on potential valve materials were halted during the first quarter to allow overhaul of the erosion apparatus and change to a larger nozzle (1.5 mm I.D.). Changeover from minus 27 mu m Al sub 2 O sub 3 particles to minus 50 mu m Al sub 2 O sub 3 was also made. These changes will allow better comparison of erosion data with other laboratories. (ERA citation 06:020460)