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Volume 37 Issue 1
Dec.  2020
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HE Qin-qiu, LI Pu-ming, YUAN Yong, ZHANG De-jin, LIU Zeng-lin, LI Song-lin. Microstructure and mechanical properties of ceramic particle-reinforced powder metallurgy Fe-2Cu-0.6C composites[J]. Powder Metallurgy Technology, 2019, 37(1): 11-17, 22. DOI: 10.19591/j.cnki.cn11-1974/tf.2019.01.002
Citation: HE Qin-qiu, LI Pu-ming, YUAN Yong, ZHANG De-jin, LIU Zeng-lin, LI Song-lin. Microstructure and mechanical properties of ceramic particle-reinforced powder metallurgy Fe-2Cu-0.6C composites[J]. Powder Metallurgy Technology, 2019, 37(1): 11-17, 22. DOI: 10.19591/j.cnki.cn11-1974/tf.2019.01.002
shu

Microstructure and mechanical properties of ceramic particle-reinforced powder metallurgy Fe-2Cu-0.6C composites

  • 1.

    State Key Laboratory for Powder Metallurgy, Central South University, Changsha 410083, China

  • 2.

    Laiwu Iron & Steel Group Powder Metallurgy Co., Ltd., Laiwu 271105, China

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  • Corresponding author:

    LI Song-lin, E-mail: lisl@csu.edu.cn

  • Received Date: July 23, 2018
    Graphical Abstract
    • Abstract
  • Ceramic particle-reinforced Fe-2Cu-0.6C low-alloy steel composites (SiC, TiC, and TiB2 ceramic particles in the mass fraction of 0~1.6%) were prepared by the conventional powder pressing/sintering technology at 600 MPa and 1140℃, the microstructures and mechanical properties of composites were investigated. The results show a good interface bonding between the reinforced particles (SiC and TiB2) and the matrix because of the reaction during sintering. The Brinell hardness and tensile strength of the sintered composites added with 1.6% SiC particles by mass increase by 35.9% and 69.4%, respectively, compared with those of Fe-2Cu-0.6C matrix. When 1.2% TiB2 particles by mass are introduced, the hardness and tensile strength of the sintered composites increase by 77.9% and 72.6%, respectively, compared with those of the matrix. Meanwhile, it is noted that the relative density of the TiB2-reinforced low-alloy steel composite also increases by 5.3%. The addition of TiC particles has little effect on the Brinell hardness and tensile strength of the composites due to no reaction between TiC particles and the matrix.
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    • References (16)
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