Dry Sliding Wear of As-Cast and Thermomechanically Processed Low Chromium White Cast Iron

Abstract:

This investigation attempts to improve the wear resistance of low chromium white cast iron (LCCI) by thermomechanical treatment. The thermomechanical treatment of the brittle LCCI with crack-free was successfully carried out by bonding it with a ductile low carbon steel firstly. Afterwards the dry sliding wear behavior of as-cast (LCCI-A) and thermomechanically processed (LCCI-B) samples was studied using a pin-on-disc apparatus under different test conditions. The microstructural examination shows that the refined supercooled austenite and plenty of secondary carbides in LCCI-B replaced the original microstructure of martensite and retained austenite with network carbide in LCCI-A. This significant evolution is beneficial to form and stabilise the oxide layer on the substrate, which makes the oxidational wear rather than abrasive wear or delamination dominating the wear process so that the improvement of the wear resistance of LCCI was achieved by hot working.

• Periodical: Advanced Materials Research (Volume 797)
• Pages: 725-730
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.797.725
• Online since: September 2013
• Authors: Xing Jian Gao, Qi Zhang, Dong Bin Wei, Si Hai Jiao, Zheng Yi Jiang
• Keywords: Laminated Composite, Sliding Wear, Thermomechanical Treatment, White Cast Iron

References

[1] Q. Ma and C.C. Wang: Wear Vol. 209 (1997), p.308.

[2] J.Z. Liu and Y.F. Man: Wear Vol. 162-164 (1993), p.833.

[3] Standard Specification for Abrasion-resistant Cast Irons, ASTM A532-93, ASTM, Philadelphia, PA.

[4] O.N. Dogan, J.A. Hawk and G. Laird: Metall. Mater. Trans. A Vol. 28A (1997), p.1315.

[5] A.B. Jacuinde, S.L. Aguilar and B. Hernandez: J. Mater. Eng. Perform. Vol. 14 (2005), p.149.

[6] T.T. Matsuo, C.S. Kiminami, W.J.B. Fo and C. Bolfarini: Wear Vol. 259 (2005), p.445.

[7] L.E. Eiselstein, O.A. Ruano and O.D. Shery: J. Mater. Sci. Vol. 18 (1983), p.483.

[8] M. Qian, L. Baicheng and W. Zhaochang: J. Mater. Sci. Vol. 30 (1995), p.3383.

[9] X. Chen and Y.X. Li: Mater. Sci. Eng., A Vol. 528 (2010), p.770.

[10] R.J. Chung, X. Tang, D.Y. Li, B. Hinckley and K. Dolman: Wear Vol. 267 (2009), p.356.

[11] A.B. Jacuinde: Inter. J. Cast Metals Res. Vol. 13 (2001), p.343.

[12] L.M. Chang, L. Liu and J.H. Liu: J. Iron Steel Res. Int. Vol. 14 (2007), p.47.

[13] G.L. Xie, H. Sheng, J.T. Han and J. Liu: Mater. Des. Vol. 31 (2010), p.3062.

[14] Y. Ono, R. Shimizu, N. Murai and K. Ogi: JFS Vol. 63 (1991), p.340.

[15] X.J. Gao, Q. Zhang, D.B. Wei, S.H. Jiao and Z.Y. Jiang: Wear (2012), http: /dx. doi. org/10. 1016/j. wear. 2012. 11. 019.

[16] R. Correa, A.B. Jacuinde, J.Z. Silva, E. Cardoso and I. Mejia: Wear Vol. 267 (2009), p.495.