creator Emani, Satyanarayana advisor Nash, Philip Double aging and thermo mechanical treatment of AA7075 and AA6061 aluminum alloys was studied and optimized to accelerate the kinetics of aging process. This novel process is highly energy efficient and reduces the time of heat treatment of AA7075 alloys by 96%. It also achieves excellent mechanical properties compared to the conventional T6 heat treatment while improving ductility and energy efficiency. Hardness curves for different aging times and temperatures and TEM analysis was used to develop an empirical model was which explains the precipitation mechanism of η’ precipitates on GP zones and the effect of time and temperature on the double aging process. Submitted by Liana Khananashvili (khananashvili@iit.edu) on 2013-05-23T18:09:56Z No. of bitstreams: 4 Satya Emani - PhD Thesis - Double Aging And Thermomechanical Heat Treatment of Aluminum.pdf: 8800068 bytes, checksum: 13f319601cdfc524b15c9d274266b663 (MD5) Satya Emani - PhD Thesis - Double Aging And Thermomechanical Heat Treatment of Aluminum.pdf: 8800068 bytes, checksum: 13f319601cdfc524b15c9d274266b663 (MD5) Satya Emani - PhD Thesis - Signed Front Page.pdf: 45754 bytes, checksum: 7017f13d96e159166b6bb53984b47a6a (MD5) Satya Emani - PhD Thesis - Abstract.pdf: 97116 bytes, checksum: 51d3d46eb68374c53d23c8d73c2b83d3 (MD5) Made available in DSpace on 2013-05-23T18:10:06Z (GMT). No. of bitstreams: 4 Satya Emani - PhD Thesis - Double Aging And Thermomechanical Heat Treatment of Aluminum.pdf: 8800068 bytes, checksum: 13f319601cdfc524b15c9d274266b663 (MD5) Satya Emani - PhD Thesis - Double Aging And Thermomechanical Heat Treatment of Aluminum.pdf: 8800068 bytes, checksum: 13f319601cdfc524b15c9d274266b663 (MD5) Satya Emani - PhD Thesis - Signed Front Page.pdf: 45754 bytes, checksum: 7017f13d96e159166b6bb53984b47a6a (MD5) Satya Emani - PhD Thesis - Abstract.pdf: 97116 bytes, checksum: 51d3d46eb68374c53d23c8d73c2b83d3 (MD5) Previous issue date: 2012-12 PH.D in Materials Science, December 2012 2012-08-27 2012-12 http://hdl.handle.net/10560/2994 en Dissertation born digital application/pdf In Copyright http://rightsstatements.org/page/InC/1.0/ Restricted Access MMAE / Mechanical, Materials, and Aerospace Engineering Illinois Institute of Technology Affiliated department