銅合金固溶体の焼鈍硬化について

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タイトル別名
  • On Anneal Hardening of α Solid Solution of Copper Alloys (On Anneal Hardening of Several Copper Alloys. (4th Report))
  • ドウ ゴウキン コヨウタイ ノ ショウドン コウカ ニ ツイテ
  • On Anneal Hardening of α Solid Solution of Copper Alloys (On Anneal Hardening of Several Copper Alloys. (4th Report))

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α-brass shows a sudden drop in density in the course of deformation at the point where the anisotropic anelasticity and anneal hardening are expected to become marked, indicating that vacancies are created in large numbers above this working degree, and probably that vacancies are closely connected with anneal hardening. The anelastic effect and the anneal hardening of α brass are very sensitive to the working temperature and rate, and seems that vacancies move during cold work and condense in an anisotropic manner, inducing an anisotropic anelasticity. Such an assumption may be confirmed by the characteristics of strain markings observed in micro-structure. Anneal hardening is considered to be induced by the disappearance of such an anelastic effect, which is brought about by the back stresses originated in pile-ups of dislocations and, it may be more important in this case, in internal stress of vacancies aggregated in an anisotropic manner.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 23 (4), 232-235, 1959

    公益社団法人 日本金属学会

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