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      https://www.ias.ac.in/article/fulltext/sadh/028/01-02/0209-0246

    • Keywords

       

      Aluminium-lithium alloys; lightweight alloys; mechanical properties

    • Abstract

       

      Aluminium-lithium alloys hold promise of providing a breakthrough response to the crying need for lightweight alloys for use as structurals in aerospace applications. Considerable worldwide research has gone into developing a range of these alloys over the last three decades. As a result, substantial understanding has been developed of the microstructure-based micromechanisms of strengthening, of fatigue and fracture as well as of anisotropy in mechanical properties. However, these alloys have not yet greatly displaced the conventionally used denser Al alloys on account of their poorer ductility, fracture toughness and low cycle fatigue resistance. This review aims to summarise the work pertaining to study of structure and mechanical properties with a view to indicate the directions that have been and can be pursued to overcome property limitations.

    • Author Affiliations

       

      N Eswara Prasad1 A A Gokhale1 P Rama Rao2 3

      1. Defence Metallurgical Research Laboratory, P.O. Kanchanbagh, Hyderabad - 500 058, India
      2. Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore - 560 064, India
      3. International Advanced Research Centre for Powder Metallurgy and New Materials, Balapur Post, Hyderabad - 500 005, India
    • Dates

       
  • Sadhana | News

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