Joining of Cu/Fe by Pulse Current Heating

Abstract:

Article Preview

Pulse Current Heating (PCH) process is a new method characteristic with shorter time and lower temperature to the fabrication of materials. In the present paper, the PCH was used to join Cu/Fe. The microstructures of the joined samples were observed by optical microscope, the diffusions of elements near the interfaces were made qualitative and quantitative analyses by Electron Probe Mechanism. Diffusion coefficients of Cu and Fe at PCH and Radiation Heating (RH) joining methods were compared. The results showed that, the transition layer widths were from 5 to 8 μm when the Cu/Fe joined at 750 to 850°C under 5 MPa pressure with holding times 5 or 10 or 15min. Width of the transition layer increase with the increasing of joining temperature and the extension of holding time. The initial interface will move from the Cu side to the Fe one due to the Kirkendall effect. The diffusion coefficients both of Cu and Fe to PCH joining were larger by three orders of magnitude than those of RH joining. The differences between the two methods were analyzed from dynamics and thermodynamics.

Info:

Periodical:

Advanced Materials Research (Volumes 154-155)

Edited by:

Zhengyi Jiang, Xianghua Liu and Jinglong Bu

Pages:

602-608

DOI:

10.4028/www.scientific.net/AMR.154-155.602

Citation:

D. H. He et al., "Joining of Cu/Fe by Pulse Current Heating", Advanced Materials Research, Vols. 154-155, pp. 602-608, 2011

Online since:

October 2010

Export:

Price:

$38.00

[1] G. F. Taylor, US Patent No. 1, 896, 854, (1933).

[2] M. Tokita: J. Soc. Powder Technol. Jpn., Vol. 30(1993), p.790.

[3] U. Anselmi-Tamburini, J. E. Garay, and Z. A. Munir: Mater. Sci. Eng., Vol. A394(2005), p.132.

[4] L. Gao, Z. J. Shen, H. Miyamoto, and M. Nygren: J. Am. Ceram. Soc., Vol. 82 (1999), p.1061.

[5] Y. Zhou, K. Hirao, M. Toriyama, and H. Tanaka: J. Am. Ceram. Soc., Vol. 83(2000), p.654.

[6] Fu Zhengyi, Liu Junfang, Wang Hao, He Daihua and Zhang Qingjie: Materials Science and Technology, Vol. 20(2004), p.1097.

[7] Zhijian Shen, Zhe Zhao, Hong Peng & Mats Nygren: Nature, Vol. 417(2002), p.266.

[8] H. Kimura, K. Toda: Power Metallurgy, Vol. 39 (1996), p.59.

[9] U. Anselmi-Tamburini, and Z. A. Munir, and J. E. Garay US Patent application, March (2005).

[10] Chen zheng, Zhou fei, Wang guofan, et al. ed. [M] Materials joining principle. Published by Haerbin University of Technology publishing company. August (2001).

[11] Cui guowen ed. Defect, diffusion and sintering. Published by Tsinghua University publishingcompany. November (1990).

[12] Zhijian Shen, Mats Johnsson, Zhe Zhao: J. Am. Soc., Vol. 85(2002), p. (1921).

In order to see related information, you need to Login.