. Transactions. w annealing temperature ofcopper wires in. diam. cohesion between the amorphous and crystalline phases with change intemperature. In Fig. 74 is shown the general cohesion-temperaturecurves of the amorphous and crystalline phases of any material that mayexist in both of these states. This particular curve shows no allotrope inthe crystalline phase. So far as we know, no allotrope can occur in ZAY JEFFRIES 521 200 000 M 100 000 .<^ ^ Legend o=x-i = Swag ed and drawn hot (1300-1000 ) from Wto .Oil; A r \ x=T-2=Saiiie as T-1 but subsequently equi-axedA=T-3 = Swaged and dra
. Transactions. w annealing temperature ofcopper wires in. diam. cohesion between the amorphous and crystalline phases with change intemperature. In Fig. 74 is shown the general cohesion-temperaturecurves of the amorphous and crystalline phases of any material that mayexist in both of these states. This particular curve shows no allotrope inthe crystalline phase. So far as we know, no allotrope can occur in ZAY JEFFRIES 521 200 000 M 100 000 .<^ ^ Legend o=x-i = Swag ed and drawn hot (1300-1000 ) from Wto .Oil; A r \ x=T-2=Saiiie as T-1 but subsequently equi-axedA=T-3 = Swaged and drawn at ^ Seduction a=T-4= .. .. .. .. ;? // /^N ^ • \ I 1 y/^^\ \ // W^ o ^•--^ ^-^ ^--J^^i^ I ^^ *— ?a --- .^^ X 1 i 1 0 100 200 300 400 500 600 700 800 900 1000 HOG 1200 1300 1400Absolute Temperature Fig. 56.— strbxgth kt various temperatures op tungstex wires. Hj 10 Legend: O = T-2 = Equi-axed tungsten wire X — T-3 = Tungsten reduced 96 ;$ by swaging and drawing at 1000C. 0 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 Absolute Temperature Fig. 57.—Per cent, elongation of tung-sten wires in. di.^m. ki temperatures. 522 EFFECT OF TEMPERATURE, ETC. ON PROPERTIES OF METALS the Hinorphoiis phase, since allotropy is one of the results of orystalUnity;if substances were not crystaUine they wouhl not be allotropic. Theoccurrence of allotropy, therefore, in a crystalUne material would alterthe cohesion-temperature curve in the crj^stalline phase only. If allo-tropy proves to be caused by a change within the atom, this view will Li gend: o = T - 1 =T uugsten swaged and drawn hot(1500^ 1000°) from .185to .025 - 4 = Tungsten drawn at 1000° from• 042 to .028(56^ Reduction) /I [ / V A \^ \] \ / ^ Ni ^ V « i / // [/ ^~^ ^ ) 0 100 200 300 400 500 600 700 800 900 1000 1200Absolute Temperature Pig. 58.—Per cent, elongation of tungsten wires at various temperatures. 80 1 # 1 O o c ^ -^ •ox -^ -X )«- 60 y / ,
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Keywords: ., bo, bookcentury1800, bookdecade1870, booksubjectmineralindustries
