Development of polymer-based quenchants for heat treatment of aircraft alloys

Raman, PS and Rajagopalan, SR (1989) Development of polymer-based quenchants for heat treatment of aircraft alloys. Project Report. National Aerospace Laboratories, Bangalore.

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    Abstract

    A few water-based polymer formulations with precipitation temperature of 74'C have been, arrived at for the heat treatment of Al- based Aircraft alloys. Two of them were prepared in bulk and tested as quenching media for L-73 sheets and L-65 bars/angles by the Heat Treatment Section of the HAL, Bangalore. While the mechanical properties of the quenched alloys were acceptable, the distortion of the sheets quenched in NAL formulations was more. The latter was assigned by the HAL engineers to the lower viscosity of our formulations. This has been improved later and some quenching studies made in NAL. Further heat treatment, tests, etc. and improvement are to be done in co-operation with the HAL engineers and funding. The formulations can replace the presently used UCON Quenchant A, imported from the UNION CARBIDE CORPORATION, U.S.A.

    Item Type: Proj.Doc/Technical Report (Project Report)
    Uncontrolled Keywords: Aircraft alloys, Quenching, Heat treatment, Inverse solubility
    Subjects: CHEMISTRY AND MATERIALS > Chemistry and Materials (General)
    Division/Department: Materials Science Division, Materials Science Division
    Depositing User: Smt Bhagya Rekha KA
    Date Deposited: 18 Jul 2012 10:50
    Last Modified: 18 Jul 2012 10:50
    URI: http://nal-ir.nal.res.in/id/eprint/10564

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