. Transactions. Fig. 36.—Fine-grained tungsteningot, swaged and 74. Fig. 37.—Coarse-grained tungsten INGOT, swaged and RECRYSTALLIZED. Fig. 38.—Structure of swaged tung-sten ROD, in. diam. X 240. Fig. 39.—Swaged tungsten rod con-taining PER cent. ThOj, Recrystallized by heating 3MiN. at 3100° C. X 240. 638 METALLOGRAPHY OF TUNGSTEN

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Keywords: ., bo, bookcentury1800, bookdecade1870, booksubjectmineralindustries