. American engineer and railroad journal . Sand Siphon. qua non of a structural material was that it should be required a metal whieh could be worked without any specialcare on the part of the artisan, which was strong and reliable, andwould give the same results any time and anywhere. He claimedthat nickel steel fulfilled all these conditions, and was the mostsuitable material to meet the demand for a metal stronger thansteel. He suggested that the qualities of nickel were due to thenearness with which the atomic volume approximates to thatof iron. In nickel steel they had a met
. American engineer and railroad journal . Sand Siphon. qua non of a structural material was that it should be required a metal whieh could be worked without any specialcare on the part of the artisan, which was strong and reliable, andwould give the same results any time and anywhere. He claimedthat nickel steel fulfilled all these conditions, and was the mostsuitable material to meet the demand for a metal stronger thansteel. He suggested that the qualities of nickel were due to thenearness with which the atomic volume approximates to thatof iron. In nickel steel they had a metal whose elastic limitwas equal to the ultimate strength of ordinary carbon steel, andyet had none of the treacherous brittleness so painfully evidentin the latter. It could be punched and bent quite as successfully asordinary carbon steel, and he had found no difficulty in welding was also worthy of note that the casemates of the Japanese war J£ £L Side View of Sand Box. ship Fuji were made of nickel Bteel, without face hardening by carburizing, and he was now making nickel steel casemates forthe two ships now being constructed on the Tyne. To prove theusefulness of nickel steel when exposed to the action of sea water,he gave details of some experiments at Leith Docks, which provedthat the loss in corrosion was less in nickel steel than in eithermild steel or wrought iron. The bearing of these experiments onthe use of nickel steel for propellers would be evident to any ma-rine engineer. In his opinion, if propellor shafts were made ofnickel steel, the question of failure would seldom arise, because acrack in nickel steel would not develop as it would in ordinary car-bon steel. In fractures the appearances were different; in the easeof carbon steel it was crystalline, but in the nickel it was subject, he concluded, was a most fascinating one. There were AND RAILROAD JOURNAL 285 many points on which he would like to ha
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
