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Production and characterization of high porosity porous Fe-Cr-C alloys by the space holder leaching technique

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Abstract

Spherical carbamide particles were employed to produce porous Fe-Cr-C alloy with high porosity and large aperture via the space-holder leaching technique. A series of porous samples were prepared by regulating the processing parameters, which included the carbamide content and the compaction pressure. The pore characteristics and compression properties of the produced samples were investigated. The samples were characterized by scanning electron microscopy, image analysis, and compression tests. The results showed that the macro-porosity and the mean pore size were in the ranges 40.4%–82.4% and 0.6–1.5 mm, respectively. The compressive strength varied between 25.38 MPa and 127.9 MPa, and was observed to decrease with increasing total porosity.

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Authors and Affiliations

  1. School of Metallurgical Engineering, Xi’an University of Architecture and Technology, Xi’an, 710055, China

    Da-rong Tian, Yu-hua Pang & Liang Yu

  2. Research Center of Metallurgical Engineering and Technology of Shaanxi Province, Xi’an, 710055, China

    Da-rong Tian, Yu-hua Pang & Liang Yu

  3. AVIC Xi’an Aircraft Industry (Group) Company Ltd., Xi’an, 710000, China

    Li Sun

Authors
  1. Da-rong Tian
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  2. Yu-hua Pang
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  3. Liang Yu
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  4. Li Sun
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Correspondence to Yu-hua Pang.

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Tian, Dr., Pang, Yh., Yu, L. et al. Production and characterization of high porosity porous Fe-Cr-C alloys by the space holder leaching technique. Int J Miner Metall Mater 23, 793–798 (2016). https://doi.org/10.1007/s12613-016-1293-1

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  • DOI: https://doi.org/10.1007/s12613-016-1293-1

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