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The characteristics of serration in Alo.sCoCrFeNi high entropy alloy

机译：Alo.sCoCrFeNi高熵合金的锯齿特性。

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摘要

High entropy alloys; PLC effect; Dynamic strain aging%Serrated flow in Alo.sCoCrFeNi high entropy alloy (HEA) was studied at the temperature range of 200-500 ℃ with strain rates from 10~(-3) s~(-1) to 10~(-4) s~(-1). Results showed that serration type would transform from type A to type A+B, and eventually evolved into type B + C with the increasing temperature and decreasing strain rate. The dynamic strain aging was the reason for the Portevin-Le Chatelier (PLC) effect, and Al played a crucial role in the interaction between solute atoms and dislocation. The characteristics of serration are revealed through statistics firstly in HEAs.
机译：高熵合金； PLC效果；动态应变时效％研究了Alo.sCoCrFeNi高熵合金（HEA）在200-500℃温度范围内的应变流，应变速率为10〜（-3）s〜（-1）至10〜（-4） s〜（-1）。结果表明，随着温度的升高和应变速率的降低，锯齿形将从A型转变为A + B型，最终演变为B + C型。动态应变时效是Portevin-Le Chatelier（PLC）效应的原因，Al在溶质原子与位错之间的相互作用中起着至关重要的作用。锯齿状特征首先通过HEA中的统计数据揭示出来。

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  • 来源
    《Materials Science and Engineering》 |2017年第15期|96-103|共8页
  • 作者

    Sizhe Niu; Hongchao Kou; Yu Zhang; Jun Wang; Jinshan Li;

  • 作者单位

    State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an 710072, PR China;

    State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an 710072, PR China;

    State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an 710072, PR China;

    State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an 710072, PR China;

    State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an 710072, PR China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    High entropy alloys; PLC effect; Dynamic strain aging;

    机译：高熵合金;PLC效果;动态应变时效;

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