. The Iron and steel magazine. 0,5 -1 Diagram 9. Aluminum Brass. Second type. 0,7 1,i ^s z Q,,n Diagram 10. Aluminum Brass ing less than g per cent tin are always composed of the solutiona whatever their temperature, while with 9 to 22 per cent of tinthe bronzes change their constitution at 500° C, being then I30 The Iron and Steel Magazine composed of the solution o and of a solution /?, the latter contain-ing from to 27 per cent of tin. With a larger proportionof tin, the change of constitution is more pronounced. It oc-curred to us that these transformations might have an industrialint

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. The Iron and steel magazine. 0,5 -1 Diagram 9. Aluminum Brass. Second type. 0,7 1,i ^s z Q,,n Diagram 10. Aluminum Brass ing less than g per cent tin are always composed of the solutiona whatever their temperature, while with 9 to 22 per cent of tinthe bronzes change their constitution at 500° C, being then I30 The Iron and Steel Magazine composed of the solution o and of a solution /?, the latter contain-ing from to 27 per cent of tin. With a larger proportionof tin, the change of constitution is more pronounced. It oc-curred to us that these transformations might have an industrialinterest, and we were led to study the quenching of these alloysby which the metal could be maintained in the conditions exist-ing at higher temperatures. It should be borne in mind in thisconnection that even now bronzes are occasionally Rich, moreover, has shown that some bronzes containingas much as 10 per cent tin could be rolled when heated to a cherryred color while the}^ could not be rolled in the cold. In ourexperiments samples of bronzes containing from

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Keywords: ., bo, bookcentury1800, bookdecade1890, booksubjectiron, bookyear1898