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Strain hardening behavior of a two-phase Cu-Ag alloy processed by high-pressure torsion

机译:高压扭转处理的两相Cu-Ag合金的应变硬化行为

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摘要

Disks of a coarse-grained Cu-28 wt.% Ag alloy and pure Cu were processed by high-pressure torsion and the microhardness was investigated as a function of the imposed strain. It is shown that the Cu-Ag alloy displays a much stronger strain hardening capability than Cu due to a continuous refinement of the microstnicture. A two-stage Hall-Petch relationship was obtained for the Cu-Ag alloy which is attributed to the development of multi-strengthening mechanisms.
机译:通过高压扭力处理粗晶粒Cu-28 wt%Ag合金和纯Cu的圆盘,并研究了显微硬度与所施加应变的关系。结果表明,由于微结构的不断细化,Cu-Ag合金比Cu具有更强的应变硬化能力。 Cu-Ag合金获得了两阶段的Hall-Petch关系,这归因于多强度机制的发展。

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