Microstructural and Mechanical Characteristics of Cladding Billets with Different Clad Ratios

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.

[1]  Yi Qin,et al.  A novel reduction-bonding process to fabricate stainless steel clad plate , 2014 .

[2]  Xin-hua Liu,et al.  Numerical simulation of temperature field in horizontal core-filling continuous casting for copper cladding aluminum rods , 2013, International Journal of Minerals, Metallurgy, and Materials.

[3]  Jong-Ho Kim,et al.  Microstructure and mechanical properties of Al–1Mn and Al–10Si alloy circular clad ingot prepared by direct chill casting , 2013 .

[4]  Tongmin Wang,et al.  The microstructure and property of Al–Si alloy and Al–Mn alloy bimetal prepared by continuous casting , 2012 .

[5]  S. Corbin,et al.  Diffusional solidification phenomena in clad aluminum automotive braze sheet , 2010 .

[6]  C. Yun,et al.  Fabrication and characterization of Ti-Cu clad materials by indirect extrusion , 2007 .

[7]  Wang Deqing,et al.  Cladding of stainless steel on aluminum and carbon steel by interlayer diffusion bonding , 2007 .

[8]  A. Taheri,et al.  GROWTH RATE OF INTERMETALLIC COMPOUNDS IN AL/CU BIMETAL PRODUCED BY COLD ROLL WELDING PROCESS , 2001 .

[9]  Y. Fu,et al.  Characteristics of clad aluminum hollow billet prepared by horizontal continuous casting , 2014 .

[10]  Cheng Yan,et al.  Interfacial strength and structure of stainless steel–semi-solid aluminum alloy clad metal , 2006 .

[11]  E. I. Marukovich,et al.  Study on the possibility of continuous-casting of bimetallic components in condition of direct connection of metals in a liquid state , 2006 .