“…However the application of such an alloy is limited by poor room temperature ductility and sudden drop in yield strength at high temperature [3,9]. In order to overcome the above problems, several alloying additions are attempted in the literature [10][11][12][13][14][15][16][17][18][19][20][21][22]. The additions of Mo, W, Cr, Al, Hf, Ge and Ga suppress the formation of Nb 3 Si and promote the formation of Nb ss /bNb 5 Si 3 eutectic composite.…”