 | 1858 - 648 Seiten
...equal to cast iron. The results of experiments with the first series of alloys (of copper and zinc) show that all the alloys containing an excess of copper...softer metal of the two which compose these alloys. The quantify of this metal must, however, not exceed 50 per cent, of the alloy, or the alloy becomes so... | |
 | 1858 - 638 Seiten
...composing them, and what is not less interesting, that the increased degree of hardness is due to the zine, the softer metal of the two which compose these alloys....or the alloy becomes so brittle that it breaks as tho steel point penetrates. We believe that some of these alloys, with an excess of zinc, and which... | |
 | Perry Fairfax Nursey - 1858 - 640 Seiten
...increased degree of hardness is due to the zinc, the softer metal of the two which compose these allovs. The quantity of this metal must, however, not exceed...or the alloy becomes so brittle that it breaks as th-i steel point penetrates. We believe that some of these alloys, with an excess of zinc, and which... | |
 | 1859 - 522 Seiten
...hardness. These results show that all the alloys containing an excess of copper are much harder than metals composing them, and, what is not less interesting,...however, not exceed 50 per cent, of the alloy, or the allay becomes so brittle that it breaks as the steel point penetrates. We believe that some of these... | |
 | 1859 - 780 Seiten
...degree of hardness is due to the zinc, the softer metal of the two which compose these alloys. Thé quantity of this metal must, however, not exceed 50 per cent, of the alloy, or the alloy becomes во brittle that it breaks as the steel point penetrates. We believe that some of these alloys, with... | |
 | 1860 - 452 Seiten
...them, and, what is not less interesting, that the inereased degree of hardness is due to the zine, the softer metal of the two which compose these alloys....believe that some of these alloys, with an excess of zine, and which are not found in commerce, owing to their white appearance, deserve the attention of... | |
 | 1859 - 780 Seiten
...composing tlu-iii, and, what is not less interesting, that the increased degree of hardness is line to the zinc, the softer metal of the two which compose these alloys. Tho quantity of this metal must, however, not exceed 50 per cent, of the alloy, or the alloy becomes... | |
 | Franklin Institute (Philadelphia, Pa.) - 1859 - 552 Seiten
...1700 C" Zn« < Zn 8.1-70 5 ' Ibs. not less interesting, that the increased degree of hardness is clue to the zinc, the softer metal of the two which compose...quantity of this metal must, however, not exceed 50 ^ cent, of the alloy, or the alloy becomes so brittle that it breaks as the steel point penetrates.... | |
| |
These results show that all the alloys containing an excess of copper are much harder than metals composing them, and, what is not less interesting, that the increased degree of hardness is due to the zinc, the softer metal of the two which compose these... 