Welding of Fe-Al Intermetallic Compound and Steel by SPS Technology

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The welding between Fe-Al intermetallic compound and high-strength steel was done via SPS technology. Microstructure, elements concentration and micro-hardness of welding joint were examined. The results indicated that there was no obvious welding heat-affected zone in both Fe-Al intermetallic compound and high-strength steel. The HAZ microstructures of high-strength steel were mainly martensite. In Fe-Al intermetallic compound, the grain size of heat-affected zone was larger than that of base metal and the density of heat-affected zone was lower than that of base metal. Besides, the grains of base metal had deformation phenomena. The welding joint had steady performance and the connection was reliable. Under the influence of chemical potential differences, unidirectional impulses discharge current and axial pressure, elements diffused perfectly in a short period of time.

Info:

Periodical:

Advanced Materials Research (Volumes 581-582)

Edited by:

Jimmy (C.M.) Kao, Wen-Pei Sung and Ran Chen

Pages:

582-585

Citation:

G. D. Zhang et al., "Welding of Fe-Al Intermetallic Compound and Steel by SPS Technology", Advanced Materials Research, Vols. 581-582, pp. 582-585, 2012

Online since:

October 2012

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$38.00

[1] Wenming Tang, Hongjun Tang, Zhixiang Zheng, Houfu Ding, Jun Lv, Junwu Liu, Progresses in studies on Fe-Al intermetallic matrix composites, J. The Chinese Journal of Nonferrous Metals. 13 (2003) 811-826.

[2] Guodong Zhang, Min Hong, Jianqiang Zhang, Jufu Zhang, Research on dissimilar steel welding via spark plasma sintering, J. Transactions of the China Welding Institution. 30 (2009) 141-144.

[3] Zhongqi Cui, Metallography and Heat-treatment, first ed., Harbin Institute of Technology Press, Harbin, (2001).

[4] Keguang Wang, Microstructure of Ti-6242/INCONEL-625 diffusion bonding interface, J. Titanium Industry Progress. 05 (1995) 38-39.

[5] Losertova. M, Barabaszova. K, Drapala. J, Kursa. M, Study of Kirkendall effect in Ni/Ni3Al welded joint after the high temperature annealing, Defect and Diffusion Forum, 263(2007) 213-218.

DOI: https://doi.org/10.4028/www.scientific.net/ddf.263.213