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首页> 外文期刊>Materials Science and Engineering >Microstructure evolution and strengthening by cold rolling of CrMnFeCoNi high-entropy alloy processed by spray forming
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Microstructure evolution and strengthening by cold rolling of CrMnFeCoNi high-entropy alloy processed by spray forming

机译：喷雾成型加工CRMNFeconi高熵合金冷轧的微观结构演化与强化

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摘要

High-entropy alloys (HEAs) are defined as alloys containing five or more major elements in atomic fractions ranging from 5 to 35%at. Despite the presence of a large number of components, CrMnFeCoNi HEAs show simple FCC crystal structure.This work reports the effects of cold rolling on the final microstructure and the mechanical properties of a CrMnFeCoNi HEA processed by spray forming and deformed to 30, 50, 90 and 146% of true strain. The results presented an alloy with excellent workability and exhibited a large work hardening capacity in cold rolling. It is concluded that the main deformation and hardening mechanisms during cold work are associated with the nanotwinning deformation of this alloy.
机译：高熵合金（HEAS）定义为含有五个或更多个主要元素的原子级分，范围为5至35％。尽管存在大量的组件，CRMNFeconi Hea展示了简单的FCC晶体结构。这项工作报告了冷轧对最终组织的影响和通过喷雾成形加工的CRMNFeconi Hea的机械性能的影响和变形为30,50,90和146％的真正应变。结果呈现了一种具有优异的可加工性的合金，并在冷轧中表现出大的工作硬化容量。得出结论，冷加工过程中的主要变形和硬化机制与该合金的纳米纺变形相关。

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  • 来源
    《Materials Science and Engineering》 |2020年第19期|139814.1-139814.9|共9页
  • 作者

    G.H. Sousa; G. Zepon; E.M. Mazzer;

  • 作者单位

    Department of Metallurgical and Materials Engineering Federal University of Minos Gerais Belo Horizonte-MG Brazil;

    Department of Materials Engineering Federal University of Sao Carlos Sao Carlos-SP Brazil Graduate Program of Materials Science and Engineering Federal University of Sao Carlos Sao Carlos-SP Brazil;

    Department of Metallurgical and Materials Engineering Federal University of Minos Gerais Belo Horizonte-MG Brazil;

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  • 正文语种 eng
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  • 关键词

    High-entropy alloys; Spray-forming; Cold rolling; Microstructure; Nanotwins; Dynamic Hall-Petch;

    机译：高熵合金;喷涂;冷轧;微观结构;纳米电线;动态霍尔 - Petch;

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