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多主元合金中局部化學短程有序的研究進展
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西安交通大學 金屬材料強度國家重點實驗室

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中圖分類號:

TG139

基金項目:

國家自然科學基金資助（項目號Nos. U2067219, 52001247, 92163201）\中國博士后科學基金項目No. 2019M663689\博士后創(chuàng)新人才支持計劃項目No. BX20190266


Progress in the Local Chemical Short-Range Order of Multi-Principal Alloys
Author:
Affiliation:

State Key Laboratory for Mechanical Behavior of Materials, Xi''an Jiaotong University

Fund Project:

國家自然科學基金資助（項目號Nos. U2067219, 52001247, 92163201）\中國博士后科學基金項目No. 2019M663689\博士后創(chuàng)新人才支持計劃項目No. BX20190266

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    摘要:

    多主元合金因其獨特的微觀結(jié)構和優(yōu)異的綜合性能而展現(xiàn)出了廣闊的應用前景，也是近年來金屬結(jié)構材料領域的研究熱點之一。作為一類新型復雜合金，多主元合金與傳統(tǒng)合金在原子尺度上存在本質(zhì)的區(qū)別，其中局部化學短程有序作為多主元合金中一種特殊的原子級微觀組織，其與位錯的交互作用將對合金的變形行為及力學性能產(chǎn)生重要的影響。本文綜述了多主元復雜合金中局部化學短程有序的相關研究進展，主要包括化學短程有序的形成因素、表征方法以及對位錯行為和力學性能的影響，并針對目前關于化學短程有序的定量表征、調(diào)控技術、理論模型建立及對服役性能的影響等方面存在的問題與不足進行了分析和展望。

    Abstract:

    Multi-principal alloys have exhibited broad structural applications due to their unique microstructure and excellent comprehensive properties, and also been the research focus of structural metallic materials in recent years. As a new type of complex concentrated alloys, there are essential differences between multi-principal alloys and traditional alloys in atomic structure, in which the local chemical short-range order (CSRO) is one special atomic microstructure. The interactions between CSRO and moving dislocations can make a significant influence on the deformation behavior and mechanical properties of multi-principal alloys. Therefore, this paper mainly summarized the progress in the local chemical order in multi-principal alloys, including the formation factors, characterization methods, and effects on deformation behavior and mechanical properties. Moreover, the existing problems and shortcomings in the directly quantitative characterization, quantitative manipulation, theoretical model development and the influence on service performance of chemical short-range order in current research were analyzed and prospected.

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丁佳琪,左家棟,王亞強,張金鈺,吳凱,劉剛,孫軍.多主元合金中局部化學短程有序的研究進展[J].稀有金屬材料與工程,2023,52(4):1507~1519.[Ding Jiaqi, Zuo Jiadong, Wang Yaqiang, Zhang Jinyu, Wu Kai, Liu Gang, Sun Jun. Progress in the Local Chemical Short-Range Order of Multi-Principal Alloys[J]. Rare Metal Materials and Engineering,2023,52(4):1507~1519.]
DOI：10.12442/j. issn.1002-185X.20220269

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  • 收稿日期:2022-03-31
  • 最后修改日期:2022-06-01
  • 錄用日期:2022-06-27
  • 在線發(fā)布日期: 2023-05-01
  • 出版日期: 2023-04-25