Study on Properties of Cupriferous and Boracic Iron Based Sintered Composites

Abstract:

Pre-configured powders were mixed uniformly through bonding granulation method. The boracic iron based self-lubricating composites with copper of different mass were prepared by the powder metallurgy press-sinter process. The tribological properties under different conditions of load were investigated on HDM20 end-face tribometer. The composite structure, the wear mechanism which copper affect the friction and wear behaviors of boracic iron based composites were analyzed by using X-ray diffraction, EDS and metallographic microscope. The results show that elementary copper which forming alloy phase could strengthen the combination of each phase in composites, playing the role of binder, improve the tribological properties. The synergistic effect between the phases combination, hardness and strength of Cu-20w composite were observably, which lead to the excellent tribological properties synthetically.

• Periodical: Advanced Materials Research (Volumes 756-759)
• Pages: 80-84
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.756-759.80
• Online since: September 2013
• Authors: Ming Hua Jiao, Bing Chao Wan, Bai Wan Su, Shao Bo Ma, Yan Guo Yin
• Keywords: Boron, Composite, Copper, Iron Based, Powder metallurgy, Tribology

References

[1] Zhongli Liu, Yanxiang Li, Xiang Chen. Microstructure and mechanical properties of high boron iron-based alloy solidified in different moulds [J]. Acta Metallurgica Sinica, 2007, 43(5): 477-481. (In Chinese).

[2] Xianfeng Dong. Study on the process, structures and properties of sintering-boronizing of Fe-based powder metallurgy materials [D]. Jilin: Jilin University, 2010. (In Chinese).

[3] Zhongli Liu, Yanxiang Li, et al. Effect of boron and carbon content on microstructure and properties of high boron iron-based alloy [J]. Iron and Steel, 2007, 42(6)78-82. (In Chinese).

[4] J. Abenojar, F. Celasco, M. A. Martinez. Influence of carbon and aluminum additions on the Fe-10%B (wt. ) system [J]. Journal of Materials Processing Technology, 2003, 143-144: 28-33.

DOI: 10.1016/s0924-0136(03)00298-x

[5] Guozhou Yuan, Jianxin Peng, Pingping Yao. Effects of total amount and grain size of FeB on properties of Fe-Cu based frictional materials [J]. Mining and Metallurgical Engineering, 2001, 21(2) 89-91. (In Chinese).

[6] R.W. Cahn. Materials Science and Technology (vol. 15). Processing of Metals and Alloys [M]. Translated by Ting Q L. Beijing: Science Process, 1999: 135-179.

[7] Shizhu Wen. Principles of tribological [M]. Beijing: Tsinghua University Press, 1990: 397-420. (In Chinese).

[8] Pingping Yao, Xiang Xiong, Boyun Huang. Effect of copper content on friction and wear properties of powder metallurgy iron based brake material for airplane[J] Non-metallic Mines, 2001, 24 (4)52-53. (In Chinese).

[9] Minghua Jiao, Yanguo Yin, Jianwei Yu, et al. Tribological properties of Cu-matrix/graphite coated wit nickel self-lubricating composites [J]. Tribology, 2007, 27(5): 492-496. (In Chinese).