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Fabrication and energy absorption properties of titanium foam with CaCl_2 as a space holder

机译：以CaCl_2为载体的泡沫钛的制备及其吸能性能。

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摘要

This study employed calcium chloride (CaCl_2) as a space holder to fabricate titanium foam via the sintering and dissolution process (SDP). The effects of the space holder content on the porosity and compression mechanical properties were investigated. The microstructure and composition of the titanium foam samples were analyzed with scanning electron microscopy (SEM) and X-ray diffraction (XRD). Compression tests used a universal testing machine. The results indicated the successful preparation of titanium foam using CaCl_2 as the space holder. The porosities of the titanium foam were 71-89%, and the cells were 1.0-3.0 mm. The porosities of the titanium foam increased following the addition of the space holder. The plateau stress of the titanium foam, which was 18.1-105.6 MPa and obeyed the Gibson-Ashby models, decreased with an increase in porosity. The energy absorption capacity of the titanium foam was 11.2-55.6 MJ/m~3 when the strain was 50%. The maximum ideal energy absorption efficiency was about 0.78. Titanium foam with 71-88% porosity exhibited the potential for energy absorption applications.
机译：这项研究采用氯化钙（CaCl_2）作为空间保持剂，通过烧结和溶解过程（SDP）来制造泡沫钛。研究了空间含量对孔隙率和压缩力学性能的影响。用扫描电子显微镜（SEM）和X射线衍射（XRD）分析了泡沫钛样品的微观结构和组成。压缩测试使用通用测试机。结果表明，以CaCl_2为空间载体成功制备了泡沫钛。钛泡沫的孔隙率为71-89％，孔为1.0-3.0mm。添加空间支架后，泡沫钛的孔隙率增加。钛泡沫的平台应力为18.1-105.6 MPa，服从Gibson-Ashby模型，随孔隙度的增加而降低。当应变为50％时，泡沫钛的能量吸收能力为11.2-55.6 MJ / m〜3。理想的最大能量吸收效率约为0.78。孔隙率为71-88％的泡沫钛具有潜在的能量吸收应用。

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  • 来源
    《Materials Science and Engineering》 |2017年第21期|419-423|共5页
  • 作者

    B. Xie; Y.Z. Fan; T.Z. Mu; B. Deng;

  • 作者单位

    Pangang Croup Research Institute Company Limited, Panzhihua 617000, PR China,State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization, Panzhihua 617000, PR China;

    Pangang Croup Research Institute Company Limited, Panzhihua 617000, PR China,State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization, Panzhihua 617000, PR China;

    Pangang Croup Research Institute Company Limited, Panzhihua 617000, PR China,State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization, Panzhihua 617000, PR China;

    Pangang Croup Research Institute Company Limited, Panzhihua 617000, PR China,State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization, Panzhihua 617000, PR China;

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

    Titanium foam; CaCl_2; Powder metallurgy; Energy absorption;

    机译：钛泡沫CaCl_2;粉末冶金;能量吸收;

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