Rolling Structure and Elastic Anisotropy of Cold-Rolled α Brass
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概要
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The change in the elasticity of 70/30 brass with rolling reduction was measured in three directions, namely, parallel, diagonal and transverse to the rolling direction. The whole reduction range up to 90 per cent was divided into three stages, according to the types of the anisotropy. At low reductions up to about 40 per cent, one of the three directions, the parallel direction gave the maximum elasticity value, showing a peak at the reduction of 20〜30 per cent. Especially in a coarse-grained material, this change seemed to be due to a geometrical inhomogeneity of strain distribution found at the grain boundaries or at the band-shape regions existing along the rolling direction rather than to a crystallographic directionality. At high reductions beyond 70 per cent, the developments of the rolling texture and flaw-like strain markings resulted in a high elasticity value in the transverse direction, and a low one in the other two. The intermediate reduction might probably show a stage transitional from one to the other mentioned above. The abnormal work-hardening previously pointed out by others was also discussed in relation to the present results.
- 東北大学の論文
- 1959-00-00
著者
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