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Effect of TiB2 Content on Wear Resistance of TiB2/7055 Composite Materials

  • Haijing Wang
  • He Li
  • Lihua Chai
  • Tiejun Ma
  • Ningning Jian
  • Tounan Jin
  • Ziyong Chen
  • Guodong Shi
Conference paper

Abstract

TiB2/7055 composites with volume fractions of 0, 5.17 and 18.23% were prepared by two step method. Firstly, the Al/TiB2 master alloy was prepared by Melt Self-propagating High-temperature Synthesis method. Then, TiB2/7055 composite was prepared by adjusting the alloy elements with using this master alloy as the matrix. Meanwhile, the effect of TiB2 particle content on hardness and wear resistance of the composites were studied. The microstructure of the composite was observed by SEM and TEM. The result showed that the average size of TiB2 reinforced particles were less than 1 μm and the particles were dispersively distributed in the grain. With the increasing of the TiB2 particles content, the hardness and wear resistance of composites increased. When the volume fraction of TiB2 was 18.23%, the hardness of composite after T6 aging could reach to 264HB, which is 14.29% higher than 7055 alloy (T6 aging), and the wear resistance is 32.36% higher than that of the 7055 alloy.

Keywords

Composite TiB2 Hardness Wear resistance 

References

  1. 1.
    Lin Geng, Jie Zhang, Bartels C, et al. Effect of Hot Deformation on Microstructure and Hardness of In-situ TiB2/7075 Composite, [J]. Journal of Materials Science & Technology, 17(6) (2001) 675–676.Google Scholar
  2. 2.
    Kumar S, Sarma V S, Murty B S. Influence of in situ formed TiB2, particles on the abrasive wear behaviour of Al–4Cu alloy, [J]. Materials Science & Engineering A, 465(1) (2007) 160–164.Google Scholar
  3. 3.
    T.S. Srivatsan, S. Anand, S. Sriram, et al. The high-cycle fatigue and fracture behavior of aluminum alloy 7055, [J]. Materials Science and Engineering: A. 281 (2000) 292–304.Google Scholar
  4. 4.
    Mandal A, Murty B S, Chakraborty M. Sliding wear behaviour of T6 treated A356–TiB2 in-situ composites, [J]. Wear, 266(7) (2009) 865–872.Google Scholar
  5. 5.
    Rajan H B M, Ramabalan S, Dinaharan I, et al. Effect of TiB2 content and temperature on sliding wear behavior of AA7075/TiB2, in situ aluminum cast composites, [J]. Archives of Civil & Mechanical Engineering, 14(1) (2014) 72–79.Google Scholar
  6. 6.
    He Li, Lihua Chai, Haijing Wang, et al. Fabrication of TiB2/Al composite by melt-SHS process with different content of titanium powder [J]. Journal of material research. 2017:1–9.Google Scholar
  7. 7.
    He Li, LH Chai, ZL Xiang, YS Cui, ZY Chen. Effects of Ti Powder Additions in Melt-SHS Process on the Performance of Al–Ti–B Grain Refiner Alloys, [J]. Materials Science Forum, 877 (2016) 121–126.Google Scholar
  8. 8.
    He Li, Lihua Chai, Ziyong Chen, et al, Effect of TiB2 content on microstructure and hardness of in-situ TiB2 reinforced high Zinc content Al–Zn–Mg–Cu–Zr composite materials, [J]. Materials Science Forum, 894 (2017) 34–37.Google Scholar
  9. 9.
    Fan Z, Wang Y, Zhang Y, et al. Grain refining mechanism in the Al/Al–Ti–B system, [J]. ActaMaterialia, 84 (2015) 292–304.Google Scholar
  10. 10.
    Nozari A, Ataie A, Heshmati-Manesh S. Synthesis and characterization of nano-structured TiB2, processed by milling assisted SHS route, [J]. Materials Characterization, 73(11) (2012) 96–103.Google Scholar
  11. 11.
    Y. Ma, Z. Chen, M.L. Wang, D. Chen, N.H. Ma, H.W. Wang. High cycle fatigue behavior of the in-situ TiB2/7050 composite, [J]. Materials Science and Engineering: A.640 (2015) 350–356.Google Scholar
  12. 12.
    Chen F, Wang T M, Chen Z N, et al. Microstructure, mechanical properties and wear behaviour of Zn–Al–Cu–TiB2, in situ composites, [J]. Transactions of Nonferrous Metals Society of China, 25(1) (2015) 103–111.Google Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  • Haijing Wang
    • 1
  • He Li
    • 1
  • Lihua Chai
    • 1
  • Tiejun Ma
    • 1
  • Ningning Jian
    • 1
  • Tounan Jin
    • 1
  • Ziyong Chen
    • 1
  • Guodong Shi
    • 1
  1. 1.Beijing University of TechnologyChaoyang District, BeijingChina

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