Microstructure response of cryogenically-rolled Cu-30Zn brass to electric-current pulsing

JOURNAL OF ALLOYS AND COMPOUNDS

卷:659

Article

Konkova, T.^1,2  Valeev, I.¹  Mironov, S.^1,3  Korznikov, A.^1,4  Korznikova, G.¹  Myshlyaev, M. M.^5,6  Semiatin, S. L.⁷ 

[1] Russian Acad Sci, Inst Met Superplast Problems, Ufa 450001, Russia

[2] Univ Strathclyde, Adv Forming Res Ctr, Inchinnan PA4 9LJ, Renfrew, Scotland

[3] Tohoku Univ, Grad Sch Engn, Dept Mat Proc, Sendai, Miyagi 9808579, Japan

[4] Natl Res Tomsk State Univ, Tomsk 634050, Russia

[5] Russian Acad Sci, Baikov Inst Met & Mat Sci, Moscow 119991, Russia

[6] Russian Acad Sci, Inst Solid State Phys, Chernogolovka 142432, Moscow Oblast, Russia

[7] AFRL RXCM, Mat & Mfg Directorate, Air Force Res Lab, Wright Patterson AFB, OH 45433 USA

关键词: Cu-30Zn brass;    Electric-current pulses;    Cryogenic deformation;    Electron backscatter diffraction;    Grain structure;    Texture;   

DOI  :  10.1016/j.jallcom.2015.11.059

来源: Elsevier

【 摘 要 】

The effect of transient electric-current pulses (ECP) on the evolution of microstructure and texture of cryogenically-rolled Cu-30Zn brass was determined. The pulsing was shown to lead to recrystallization followed by grain growth. The mean grain size in the recrystallized material was 0.5 mu m, thus indicating that cryogenic rolling coupled with ECP is suitable for the production of an ultrafine-grain microstructure in Cue30Zn brass. The differences in the recrystallization texture in pulsed versus statically-annealed conditions suggested a distinct recrystallization mechanism during ECP. (C) 2015 Elsevier B.V. All rights reserved.

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