Papers by Author: Taku Sakai

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Authors: Rustam Kaibyshev, Taku Sakai, Ilya Nikulin, F. Musin
447
Authors: Taku Sakai, Hiromi Miura
Abstract: Annealing behaviour was studied in deformed copper developed by continuous or discontinuous dynamic recrystallization (cDRX or dDRX). Pure copper was deformed to large strains by multi-directional forging at room temperature, resulting in an ultra-fine grained structure due to operation of cDRX. Subsequent annealing of such a fine-grained copper can be controlled mainly by grain growth accompanied with recovery and no texture change, that is continuous static recrystallization (cSRX). On the other hand, 4 kinds of static restoration processes operate during annealing of dDRXed copper, i.e. metadaynamic recovery and recystallization (mDRV and mDRX), and classical static recovery and recrystallization. The stable existence of mDRVed grains containing moderate dislocations leads to incomplete recrystallization even after a long period of annealing time. It is discussed how such various types of annealing processes, occurring in cDRXed or dDRXed matrices, can be connected with the characteristic nature of the deformed microstructures.
327
Authors: Jeffrey S. Cross, M. Fujiki, Taku Sakai, Mineharu Tsukada, N. Kamehara
181
Authors: Arthur Galiyev, Rustam Kaibyshev, Taku Sakai
509
Authors: Taku Sakai, K. Yoneda, Yoshiyuki Saito
309
Authors: Hiromi Miura, Naoya Tada, Taku Sakai, Masashi Kato
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Authors: Rustam Kaibyshev, Oleg Sitdikov, Alexandre Goloborodko, Taku Sakai
355
Authors: Xu Yue Yang, Hiromi Miura, Taku Sakai
515
Authors: Oleg Sitdikov, Rustam Kaibyshev, Taku Sakai
521
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