TY - RPRT TI - Postweld heat treatment criteria for repair welds in 2-14Cr-1mo superheater headers : an experimental study AU - Read, D T AU - McHenry, H I PY - 1988 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS IR 87-3075 DO - 10.6028/NBS.IR.87-3075 ER -