Integrated Thermo-mechanical Processing, Microstructure and Property Simulation System for Aluminum Alloys

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N00014-08-M-0297
Agency Tracking Number: N08A-022-0137
Amount: $70,000.00
Phase: Phase I
Program: STTR
Awards Year: 2008
Solicitation Year: 2008
Solicitation Topic Code: N08-T022
Solicitation Number: 2008.A
Small Business Information
SCIENTIFIC FORMING TECHNOLOGIES CORP.
2545 Farmers Drive Suite 200, Columbus, OH, 43235
DUNS: 789156841
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Wei-Tsi Wu
 Executive Vice President
 (614) 451-8322
 wwu@deform.com
Business Contact
 Juipeng Tang
Title: President
Phone: (614) 451-8320
Email: jtang@deform.com
Research Institution
 DREXEL UNIV.
 Surya Kalidindi
 3141 Chestnut Street
Philadelphia, PA, 19104
 (215) 895-1311
 Nonprofit college or university
Abstract
Currently, no single design tool can predict the coupled effects of alloy composition, thermo-mechanical processing, microstructure evolution, and crystallographic texture. A reliable through-process computational materials modeling system would represent a next-generation approach to alloy and process design. It will greatly reduce the risk to develop novel materials and processes, and accelerate the insertion of new products into industry from conception to implementation. Towards this goal, this project proposes to enhance the process modeling and microstructure evolution system, DEFORM, with a new precipitation model specific to the beta phase of 5xxx series aluminum alloys; to allow DEFORM to communicate with the commercial crystal plasticity code Crysp, for texture prediction; and to validate the texture modeling predictions via material testing and characterization. The resultant product will be able to model, in integrated fashion, the coupled effects of material composition, initial microstructure, and process variables on final part properties - flow stress for Phase I, with the future goals of modeling ductility and ultimate tensile strength in Phase II. Grain size evolution, precipitate formation, texture evolution, work hardening, recovery and recrystallization will all be modeled. Modeling results will be evaluated with experimental testing and characterization of aluminum alloys Al5083 and Al5456.

* information listed above is at the time of submission.

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