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首页> 外文期刊>Philosophical Magazine Letters >Effect of metastable Cr(Mo)s/Cr(Mo)a powders on mechanical alloying the immiscible Cu-Mo-Cr system
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Effect of metastable Cr(Mo)s/Cr(Mo)a powders on mechanical alloying the immiscible Cu-Mo-Cr system

机译：亚稳态Cr（Mo）S / Cr（Mo）粉末对机械合金化的不混溶CU-MO-CR系统的影响

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摘要

Metastable-state alloy powders are usually synthesised by milling and occur as products of mechanical alloying (MA), but they are rarely used as starting materials for other MA processes. In this work, metastablestate alloy powders, including supersaturated solid-solution Cr(Mo)s and amorphous Cr(Mo)a were prepared in advance. Then, the Cr(Mo)s/Cr(Mo)a powder mixture was mechanically alloyed with elemental Cu to form Cu-Mo-Cr alloy. The effects of the metastablestate powder Cr(Mo)s/Cr(Mo)a on MA of the immiscible Cu-Mo-Cr system were evaluated. Phases and microstructures of the milled powders were analysed by XRD and TEM, respectively. The results show that amorphous Cu-60wt.% Cr(Mo) and supersaturated solidsolution Cu-20wt.% Cr(Mo) alloy powders can be synthesised by MA. It is concluded that MA of the Cu-Mo-Cr ternary alloy system is significantly promoted when elemental Cu powder is milled with metastable-state alloy powder Cr(Mo)s/Cr(Mo)a. Furthermore, the promoting effect of amorphous Cr(Mo)a on MA the Cu-Mo-Cr alloy system is much greater than that of supersaturated solid-solution Cr(Mo)s, during the milling process.
机译：亚铁状态合金粉末通常通过研磨合成，并作为机械合金化产品（MA）的产品，但它们很少用作其他MA工艺的起始材料。在这项工作中，预先制备包括过饱和固溶Cr（Mo）和无定形Cr（Mo）A的转移性合金粉末。然后，将Cr（Mo）S / Cr（Mo）用元素Cu机械合金合金以形成Cu-Mo-Cr合金。评估了转移培养物粉末Cr（Mo）S / Cr（Mo）A对混合Cu-Mo-Cr系统MA的影响。通过XRD和TEM分析研磨粉末的相和微观结构。结果表明，无定形Cu-60wt。％Cr（Mo）和超饱和固溶Cu-20wt。％Cr（Mo）合金粉末可以通过MA合成。结论是当用稳定状态合金粉末Cr（Mo）S / Cr（Mo）a磨削元素Cu粉末时，Cu-Mo-Cr三元合金系统的MA显着促进。此外，在研磨过程中，无定形Cr（Mo）A对Ma Cu-Mo-Cr合金系统的促进作用大于超饱和固溶Cr（Mo）S的促进作用。

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  • 来源
    《Philosophical Magazine Letters》 |2018年第3期|共10页
  • 作者

    Sun Chongfeng; Xi Shengqi; Li Panpan; Zhang Yue; Zheng Xiaoxue;

  • 作者单位

    Xi An Jiao Tong Univ Sch Mat Sci &

    Engn State Key Lab Mech Behav Mat Xian Shaanxi Peoples R China;

    Xi An Jiao Tong Univ Sch Mat Sci &

    Engn State Key Lab Mech Behav Mat Xian Shaanxi Peoples R China;

    City Univ Hong Kong Coll Sci &

    Engn Dept Mech &

    Biomed Engn Hong Kong Hong Kong Peoples R China;

    Xi An Jiao Tong Univ Sch Mat Sci &

    Engn State Key Lab Mech Behav Mat Xian Shaanxi Peoples R China;

    Xi An Jiao Tong Univ Sch Mat Sci &

    Engn State Key Lab Mech Behav Mat Xian Shaanxi Peoples R China;

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

    Mechanical alloying; metastable powders; Cu-Mo-Cr; defects; diffusion; XRD; TEM;

    机译：机械合金化;亚料粉;Cu-Mo-Cr;缺陷;扩散;XRD;TEM;

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