DOPED IRIDIUM WITH IMPROVED HIGH-TEMPERATURE PROPERTIES

摘要

The invention relates to an iridium alloy comprising rhenium and the total amount of molybdenum and hafnium, 0.002 to 1.2% by weight according to the minimum of 85% by weight of iridium, at least 0.005% by weight of molybdenum, 0.0005 to 0.6% hafnium, and optionally, the IrMo and IrHf master alloy is produced in an electric arc each directed to a method for producing an iridium alloy that is impregnated with the iridium melt with Re as needed. ; Iridium, rhenium, molybdenum, hafnium, creep strength, corrosion resistance, shrinkage, the master alloy