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| SOME STRUCTURAL CHANGES IN THE TEXTURE OF THE COLD-DRAWN COPPER WIRE |
| YANG SIEN-MIN;YANG BING-CHI;CHENG KUAN-HSI;LUI CHENG-HWAN;Koo CHUAN-PAN Institute of Mechanical Engincering; Academia Sinica |
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Cite this article:
YANG SIEN-MIN;YANG BING-CHI;CHENG KUAN-HSI;LUI CHENG-HWAN;Koo CHUAN-PAN Institute of Mechanical Engincering; Academia Sinica. SOME STRUCTURAL CHANGES IN THE TEXTURE OF THE COLD-DRAWN COPPER WIRE. Acta Metall Sin, 1959, 4(3): 245-254.
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Abstract Diffraction patterns of W radiation of the cold-drawn copper wire are investigated. Theexpansion of interplanar spacing, the half-peak width of spot, the ratio of peak values of densityof spots corresponding to (111) and (100) fibre axes etc. are correlated to the amount of reduc-tion of cross-sectional areas. The difference of yield-strengths of wires of same total percentageof reduction of area and different number of drawings may be accounted for by the structuralchanges as shown by the difference in the textures. By the graph plotted, it is shown that the distribution of densities of spots correspondingto (111) and (100) fibre axes approximately follows the distribution law of Boltzmann type;i.e. f(hkl) ∝ e~(-KE)(hkl), and E_(hkl) ∝ △A/A (the fraction of the reduction of the cross-sectional area of wire).
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Received: 18 March 1959
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