Wear-resistant material for coal conversion and utilization. Final progress report, October 1980-September 1981. [METCO 19E Cr-Ni-B; METCO 36C Ni-WC]

Erosion testing of valve materials, ball-valve tests, and laser-processed valve and valve coatings are discussed. METCO 19E Cr-Ni-B and METCO 36 Ni-WC were found successful as laser-fused coating materials. (DLC)