PREPARATION OF NUCLEAR POISON AND CONTROL ALLOYS Stainless Steel Base Boron Alloys

摘要

Stainless steel base boron alloys with nominal compositions of 18 wt % chromium, 14 wt % nickel, and 0.4 to 3.2 wt % boron were successfully cast into ingots by vacuum induction melting. Alloy ingots containing up to 2.4 wt % boron were fabricated into 0.100-inch strip by forging and rolling at 1140 to 1175ºC. An ingot containing 3.2 wt % boron could not be fabricated by the same procedure. Chemical analyses on as-cast ingots and rolled strip indicated very high boron recovery and good homogeneity. Brinell hardness numbers of the alloys were directly proportional, and measured densities were inversely proportional to boron content.