Accelerated age hardening by plastic deformation in Al-Cu with minor additions of Si and Ge

M. Victoria Castro Riglos; M. Taquire de la Cruz; Alfredo Tolley

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Accelerated age hardening by plastic deformation in Al-Cu with minor additions of Si and Ge

机译：通过少量添加Si和Ge的Al-Cu塑性变形促进时效硬化

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An extremely fast hardening response with no reduction in peak hardness was obtained in Al-Cu with minor additions of Si and Ge by 8% plastic deformation before artificial aging. The mechanism for the accelerated hardening was determined by detailed characterization with transmission electron microscopy. Plastic deformation was found to enhance the nucleation rate of Si-Ge precipitates, resulting in a higher volume density. Such precipitates catalyzed the formation of 0' precipitates that are responsible for hardening.

机译：在人工时效之前，添加少量的Si和Ge的8％塑性变形在Al-Cu中获得了极快的硬化响应，且峰值硬度没有降低。通过透射电子显微镜的详细表征确定加速硬化的机理。发现塑性变形增强了Si-Ge沉淀物的成核速率，从而导致更高的体积密度。这样的沉淀物催化了导致硬化的0'沉淀物的形成。

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来源
《Scripta materialia》 |2011年第2期|共4页
作者
M. Victoria Castro Riglos; M. Taquire de la Cruz; Alfredo Tolley;
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原文格式 PDF
正文语种 eng
中图分类冶金工业;
关键词
Aluminum alloys; Cold working; Precipitation; Transmission electron microscopy;

机译：铝合金;冷加工;沉淀;透射电镜;

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1. Accelerated age hardening by plastic deformation in Al-Cu with minor additions of Si and Ge [J] . M. Victoria Castro Riglos, M. Taquire de la Cruz, Alfredo Tolley Scripta materialia . 2011,第2期

机译：通过少量添加Si和Ge的Al-Cu塑性变形促进时效硬化
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Accelerated age hardening by plastic deformation in Al-Cu with minor additions of Si and Ge

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