Metal Science and Heat Treatment

, Volume 11, Issue 2, pp 104–105 | Cite as

Weldability of aluminum alloy 01420

  • G. E. Kainova
  • T. I. Malinkina
Nonferrous Metals and Alloys


  1. 1.

    Alloy 01420 can be used for manufacturing welded structures. When welded in the thermally hardened condition the strength of the welded joints is about 80% that of the base metal. When quenched and aged after welding the strength of the welded joints is 92–100% that of the base metal.

  2. 2.

    The reason for porosities in the weld seams of the 01420 alloy is the surface film formed in heating at temperatures above 420°C. To eliminate porosity the surface layer must be removed to a depth of 0.05 mm before welding by etching the pieces in a solution of 100–110 g/liter NaOH at 60–70°C for 10–15 min.



Aluminum Porosity Welding Surface Layer Aluminum Alloy 
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Literature cited

  1. 1.
    I. N. Fridlyander et al., Metal. i Term. Obrabotka Metal., No. 8 (1968).Google Scholar
  2. 2.
    N. A. Galaktionova, Hydrogen in Metals [in Russian], Metallurgiya, Moscow (1967).Google Scholar
  3. 3.
    F. M. Shamrai, Lithium and Its Alloys [in Russian], Izd. AN SSSR (1954).Google Scholar

Copyright information

© Consultants Bureau 1969

Authors and Affiliations

  • G. E. Kainova
  • T. I. Malinkina

There are no affiliations available

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