Harumitsu Makita1, Shuji Hanada2 and Osamu Izumi2
1Kawai Musical Instruments Mfg. Co., Ltd., Hamamatsu. Present address: The Research Institute for Iron, Steel and Other Metals, Tohoku University, Sendai
The rolling texture and the primary and secondary recrystallization texture of copper alloy sheets were measured by X-ray diffraction and electron channeling pattern method. The specimen sheets contain 0.1 mol% additional elements such as Si, Ge, P, In and Ti.
Deformation textures were not affected by all the additional elements and showed the Cu-type texture. The recrystallization texture was found to fall into two types. In case of Si or Ge addition, which slightly raised the recrystallization temperature, the primary recrystallization texture showed a sharp cube orientation and the secondary recrystallization appeared. On the contrary, in case of P, In or Ti addition, which distinctly raised the recrystallization temperature, the primary recrystallization texture showed a weak cube orientation mixed with other orientations and no secondary recrystallization occurred.
The obtained results are discussed in relation to stacking fault energies and grain boundary structures.
copper, additional elements, texture, primary recrysrallization, secondary recrystallization
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