高级检索
何勤求, 李普明, 袁勇, 张德金, 刘增林, 李松林. 陶瓷颗粒增强粉末冶金Fe-2Cu-0.6C复合材料的微观结构和力学性能[J]. 粉末冶金技术, 2019, 37(1): 11-17, 22. DOI: 10.19591/j.cnki.cn11-1974/tf.2019.01.002
引用本文: 何勤求, 李普明, 袁勇, 张德金, 刘增林, 李松林. 陶瓷颗粒增强粉末冶金Fe-2Cu-0.6C复合材料的微观结构和力学性能[J]. 粉末冶金技术, 2019, 37(1): 11-17, 22. DOI: 10.19591/j.cnki.cn11-1974/tf.2019.01.002
shu
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

陶瓷颗粒增强粉末冶金Fe-2Cu-0.6C复合材料的微观结构和力学性能

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

    摘要
  • 摘要: 采用传统粉末冶金压制/烧结技术，经600 MPa压制、1140℃烧结制备了陶瓷颗粒增强（SiC、TiC及TiB2陶瓷颗粒，质量分数0~1.6%）Fe-2Cu-0.6C低合金钢复合材料，对三种复合材料的微观结构和力学性能进行了研究。结果表明：在烧结过程中，SiC与TiB2颗粒与基体发生反应，故而与基体界面结合良好；当添加质量分数为1.6%的SiC颗粒时，复合材料烧结后的布氏硬度与抗拉强度分别比基体提高了35.9%、69.4%；添加质量分数为1.2%的TiB2颗粒时，复合材料相对密度比基体提高了5.3%，其烧结硬度、抗拉强度与基体相比分别提高了77.9%、72.6%；由于烧结过程中TiC颗粒不与基体发生反应，故而添加TiC颗粒对复合材料的布氏硬度、抗拉强度影响不大。

     

    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.

     

    • HTML全文
    • 参考文献(16)
    • 相关文章
    • 施引文献
  • 资源附件(0)

/

返回文章
返回