“…The most recent research on Nb-silicide based alloys has mainly focused on “forth” generation alloys, which have evolved from Nb-Ti-Si-Al-Cr alloys [ 9 ], MASC (Metal And Silicide Composite) type [ 1 ] Nb-Ti-Si-Al-Cr-Hf-(Sn, Ge) alloys, Nb-Si-TM-RM alloys to Nb-Si-TM-RM-X alloys (TM = Cr, Hf, Ti, Zr, RM = Mo, Ta, V, W, and X = Al, B, Ge, Sn, and exotic addition(s) [ 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 ]). To date, almost all the alloys have been studied in their cast and heat-treated conditions.…”