. Transactions. Fig. 33.—Charpy bar. per cent. C, per cent. Ni. Treated ABOVE CRITICAL CHANGE AT 700° C. FOR 20 HR. IN NH3. BrOKEN AT 100° C. EtCHED10 SEC WITH 4 PER CENT. NITRIC ACID. X FiQ. 34.—Same as Fig. 33. Etched 10 sec. with 4 per cent, nitric acid. X 500. 282 NITROGEN IN STEEL AND THE EROSION OF GUNS

---

Size: 1683px × 1485px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bo, bookcentury1800, bookdecade1870, booksubjectmineralindustries