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Development of Ultra-Refined Microstructure in Friction Stir Processed 7xxx…

Award Information

Agency:
Department of Defense
Branch:
Air Force
Award ID:
83393
Program Year/Program:
2007 / STTR
Agency Tracking Number:
F074-038-0012
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Applied Optimization, Inc.
714 E Monument Ave Ste 204 Dayton, OH -
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 2007
Title: Development of Ultra-Refined Microstructure in Friction Stir Processed 7xxx Aluminum using Microstructural and Thermomechanical Modeling
Agency / Branch: DOD / USAF
Contract: FA9550-07-C-0164
Award Amount: $99,999.00
 

Abstract:

Applied Optimization, Inc., in working with EWI, Inc., Ohio State University, and Boeing Phantom Works, proposes to demonstrate feasibility of using microstructural models to predict the required processing conditions that can produce nanostructured grain sizes in the thermo-mechanical affected zone in friction stir processing [FSP] of 7075-T6 aluminum. First step will be an FSP trial using the processing conditions reported in the literature. The data from this trial will be used as input for models. Microstructure modeling will be physically-based on state variables and mechanisms, the basic inputs to which will be initial microstructure and evolution of temperature, strain and strain-rate versus time during the FSP. Additional microstructure model will be direct morphological simulation of microstructure using the phase field method. Thermo-mechanics evolution during FSP will be modeled using analytical solutions for material flow and temperature field. This will be supplemented with 3-D finite element simulation as needed. The microstructure models and the thermo-mechanics model will be used in tandem to predict processing conditions that will improve upon the results of the FSP trial performed at the start. These new conditions will be used to perform a second FSP trial to demonstrate feasibility of the using the models to optimize FSP to produce nanostructured grain sizes.

Principal Investigator:

Anil Chaudhary
President
9374315100
anil@appliedo.com

Business Contact:

B. J. Krivian
Finance Manager
9374315100
bj.krivian@appliedo.com
Small Business Information at Submission:

APPLIED OPTIMIZATION, INC.
714 E Monument Ave Ste 204 Dayton, OH 45402

EIN/Tax ID: 311446081
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Research Institution Information:
[1] EDISON WELDING INST. [2] OSUNIV.
1250 Arthur E,. Adams Drive
Columbus, OH 43221 3585
Contact: Mike Sewell
Contact Phone: (614) 688-5076
RI Type: Domestic nonprofit research organization