Chemical and Materials Engineering Vol. 1(4), pp. 116 - 121
DOI: 10.13189/cme.2013.010403
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Titanium-Mediated Tribo-Chemically Activated Cold Welding of Aluminum


Abhay Kumar , P. Ganesh, Rakesh Kaul *, Puspen Mondal , Pragya Tiwari , A. K. Srivastava , R. K. Soni , L. M. Kukreja
Raja Ramanna Centre for Advanced Technology, Indore – 452 013 India

ABSTRACT

The paper describes a new phenomenon of "titanium-mediated cold welding of aluminum" which was observed during development of titanium window for energetic electrons. During compression of two aluminum sheets with an intermediate titanium foil, the imposed tribological conditions developed at the mating interfaces of titanium/aluminum sheets activated a chemical reaction causing removal of alumina surface layer. Complete wear of titanium foil brought two virgin aluminum surfaces into intimate contact which resulted in their welding at room temperature. The phenomenon provides a new direction to facilitate cold welding between aluminum sheets.

KEYWORDS
Aluminum, Cold Welding, Tribo-Chemical Reaction, Titanium

Cite this paper
Abhay Kumar , P. Ganesh, Rakesh Kaul , Puspen Mondal , Pragya Tiwari , A. K. Srivastava , R. K. Soni , L. M. Kukreja (2013). Titanium-Mediated Tribo-Chemically Activated Cold Welding of Aluminum. Chemical and Materials Engineering, 1 , 116 - 121. doi: 10.13189/cme.2013.010403.