Microstructural and Mechanical Characteristics of Cladding Billets with Different Clad Ratios

Abstract:

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AA4045/AA3003 cladding billets with different clad ratios were fabricated by direct chill casting process. The macrostructures, microstructures, compositions distribution and the mechanical properties near the bonding interface were investigated in detail. The results show that the cladding billet with few defects could be obtained by semi-continuous casting process. The metallurgical bonding was formed due to the diffusions of elements. The decreasing of clad ratio changed the microstructure at the interface and reduced the thickness of diffusion layer. The hardness around the interface is higher than that of AA3003 side but lower than that of the other side, indicating that the interface yield strength is also higher than that of AA3003. After extrusion process, the characteristics of the interface remain that of as-cast cladding billet.

Info:

Periodical:

Edited by:

Qing Liu, Jian-Feng Nie, Robert Sanders, Zhihong Jia and Lingfei Cao

Pages:

9-14

DOI:

10.4028/www.scientific.net/MSF.877.9

Citation:

X. Han and J. Z. Cui, "Microstructural and Mechanical Characteristics of Cladding Billets with Different Clad Ratios", Materials Science Forum, Vol. 877, pp. 9-14, 2017

Online since:

November 2016

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$35.00

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