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Effects of aging and sheet thickness on the room temperature deformation behavior and in-plane anisotropy of cold rolled and solution treated Nimonic C-263 alloy sheet

  • Kandula Ankamma , Ashok Kumar Singh , Konduri Satya Prasad , Gangireddy Chandra Mohan Reddy , Methuku Komaraiah and Namburi Eswara Prasad

Abstract

The deformation behavior under uni-axial tensile loading is investigated and reported in the case of cold rolled Nimonic C-263 alloy sheet products of different thicknesses (0.5 mm and 1 mm) in the solution treated and aged conditions. The studies conducted include (i) Microstructure, (ii) X-ray diffraction, (iii) Texture and (iv) Tensile properties and in-plane anisotropy in the yield behavior (both tensile yield strength and ultimate tensile strength as well as ductility). The results of the present study showed that despite the presence of weak crystallographic texture in this crystal symmetric material, the degrees of in-plane anisotropy in strength as well as plastic deformation properties are found to be significant in both solution treated and aged conditions, thus having significant technological relevance for both further processing and design purposes. Further, the influence of aging and sheet thickness on the tensile deformation behaviour is also found to be considerable. A brief discussion on the technological implications of these results is also included.


* Correspondence address Dr. N. Eswara Prasad, FIE, FIIM, Scientist G and Regional Director, Regional Centre for Military Airworthiness (Materials), [Cemilac, Drdo, Min. Defence and Govt. India], PO Kanchanbagh, Hyderabad – 500 058, India, Tel.: +91 40 24 340 750 (O); 24 120 179 (R); 09 490 754 173 (Per), Fax: +91 40 24 341 827, E-mail: (O); (Per).

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Received: 2010-3-12
Accepted: 2011-8-2
Published Online: 2013-05-14
Published in Print: 2011-10-01

© 2011, Carl Hanser Verlag, München

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