复合材料科学与工程 ›› 2023, Vol. 0 ›› Issue (4): 128-136.DOI: 10.19936/j.cnki.2096-8000.20230428.019

• 综述 • 上一篇    

B4Cp/Al复合材料的界面调控及塑性变形行为研究进展

彭昊恺1, 刘瑶1, 马东林2, 冷永祥1*   

  1. 1.西南交通大学 材料科学与工程学院,成都610031;
    2.成都师范学院 物理与工程技术学院,成都610030
  • 收稿日期:2022-02-22 出版日期:2023-04-28 发布日期:2023-08-22
  • 通讯作者: 冷永祥(1972—),男,教授,博士,主要从事材料表面改性方面的研究,yxleng@263.net。
  • 作者简介:彭昊恺(1998—),男,硕士研究生,主要从事B4C/Al复合材料的制备方面的研究。

Research progress on interface control and plastic deformation behavior of B4Cp/Al composites

PENG Haokai1, LIU Yao1, MA Donglin1, LENG Yongxiang1*   

  1. 1. School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China;
    2. School of Physics and Engineering Technology, Chengdu Normal University, Chengdu 610030, China
  • Received:2022-02-22 Online:2023-04-28 Published:2023-08-22

摘要: B10具有优异的热中子屏蔽性能,B10含量高、断裂韧性好、可进行塑性变形加工的B4Cp/Al复合材料大尺寸薄板在乏燃料后处理方面有着广阔的应用前景。但是,随着B4C颗粒含量的增多,B4C与Al界面处脆性相增多,导致B4Cp/Al复合材料的韧性变差,塑性变形能力减弱,后续塑性加工成型性差。因此,制备热中子屏蔽性能好的高硼含量B4Cp/Al板材的关键是在保证高B4C颗粒含量的前提下,通过控制B4C颗粒和Al基体界面反应产物,提高B4Cp/Al复合材料的韧性和塑性变形能力。本文首先介绍了B4Cp/Al复合材料的制备方法,重点对浸渗法进行了论述,并介绍了B4Cp/Al复合材料的塑性变形机制,对热加工温度、应变速率和B4Cp/Al复合材料界面结构对B4Cp/Al的塑性变形能力和热轧性能的影响进行了综述。同时,介绍了国内外近年来通过控制浸渗温度、添加合金元素和陶瓷颗粒等方法,实现对B4Cp/Al复合材料界面成分、结构调控的研究成果。最后,本文对采用浸渗和热轧加工制备用于乏燃料后处理的高硼含量B4Cp/Al复合材料大尺寸薄板的研究进行了展望。

关键词: 铝基碳化硼, 浸渗, 塑性变形, 热轧, 界面, 复合材料

Abstract: B10 has excellent thermal neutron shielding performance. B4Cp/Al composite large size sheet with high B10 content, good fracture toughness and plastic deformation prosessing has a broad application prospect in the post-processing of spent fuel. However, with the increase of the content of B4C particles, the brittle phases at the interface between B4C and Al increase, resulting in poor toughness of B4Cp/Al composites, weakened the plastic deformation ability, and the subsequent plastic processing formability. Therefore, the key to preparing high boron content B4Cp/Al sheet with good thermal neutron shielding performance is to improve the plastic deformation capacity and hot rolling performance of B4Cp/Al composites by controlling the interface reaction products of B4C particles and Al matrix under the premise of ensuring the high content of B4C particles. This article first introduces the fabrication method of B4Cp/Al composite and focusing on infiltration especially. This article also introduces the plastic deformation mechanism of B4Cp/Al, and reviews the effects of hot working temperature, strain rate and interface structure on the plastic deformation capacity and hot rolling properties of B4Cp/Al, meanwhile, the recent results about controlling the infiltration temperature, adding alloying elements or ceramic phase to adjust the composition and structure of the B4Cp/Al interface were introduced. In the end, this article points out the future directions of fabrication and processing of high boron content B4Cp/Al large size composite sheet for spent fuel reprocessing by infiltration and hot rolling.

Key words: B4C/Al, infiltration, plastic deformation, hot rolling, interface, composites

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