Effects of Electric Pulse Modification on the Hot Tearing of Al-5%Cu-0.8%Mn Alloy

Abstract:

It was investigated that the effect of electric pulse modification (EPM) on the hot tearing of Al-5%Cu-0.8%Mn alloy. The results indicate that hot tearing tendency of all samples can be reduced treated by electric pulse with different parameters, moreover, hot tearing stress of alloy with EPM was enhanced 3 times or so than that of samples without treatment. Decreasing the quantity of eutectic in grain boundaries, decreasing the end-solidifying temperature of the alloys, and refining the grains are main causations for increasing hot tearing resistance of Al-5%Cu-0.8%Mn alloy by electric pulse modification.

• Periodical: Advanced Materials Research (Volumes 299-300)
• Pages: 399-402
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.299-300.399
• Online since: July 2011
• Authors: Bing Wang, Li Dan Tang, Jian Zhong Wang, Jin Gang Qi
• Keywords: Electric Pulse Modification (EPM), Hot Tearing, Refining

References

[1] Jos´e E. Spinelli, Daniel M. Rosa, Ivaldo L. Materials Science and Engineering A Vol. 383 (2004), p.271.

[2] Bing Liu, Zhi long Zhao, Yong xin Wang. Journal of Crystal Growth Vol. 271 (2004), p.301.

[3] J.Z. Wang, D.Q. Cang, CHN patent: CN98100543. 8. (1998).

[4] Jin gang Qi, Jian zhong Wang, Xing jiang Liu. Journal of University of Science and Technology Beijing Vol. 12 (2005), p.527.

[5] Y. Tang, J.Z. Wang, D.Q. Cang. J. Iron Steel Res. (in Chinese) Vol. 11 (1999), p.44.

[6] J.S. Wang, Q.G. Xue, J.Z. Wang. Foundry (in Chinese) Vol. 50 (2001), p.677.

[7] K. Kim, H.N. Han, T. Yeo, Y. Lee, K.H. Oh, D.N. Lee. Ironmaking and Steelmaking Vol. 24 (1997), p.249.