[图书][B] Precipitation in Nb-microalloyed steel castings
JS Park - 1999 - search.proquest.com
Steel ingots of base composition 0.25 wt% Si, 1.3 wt% Mn, wt% N, P and S< 0.009 wt% and
containing 0.024-0.175 wt% C and 0.005-0.05 wt% Nb were solidified in a controlled …
containing 0.024-0.175 wt% C and 0.005-0.05 wt% Nb were solidified in a controlled …