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Lightweight, High Temperature Beta Gamma Alloy/Process Development for Air…

Award Information

Agency:
Department of Defense
Branch:
Navy
Award ID:
87593
Program Year/Program:
2008 / SBIR
Agency Tracking Number:
N081-071-0166
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
UES, Inc.
4401 Dayton-Xenia Road Dayton, OH -
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 2008
Title: Lightweight, High Temperature Beta Gamma Alloy/Process Development for Air Frame Structure Applications
Agency / Branch: DOD / NAVY
Contract: N00014-08-M-0247
Award Amount: $69,914.00
 

Abstract:

Gamma titanium aluminide alloys (gamma alloys) possess the attractive combination of low density (~50% of that of superalloys) and high temperature (up to 1500 degrees F) capability, ideal for hot airframe structure and turbine engine applications. Yet, gamma alloys have not been inserted into aerospace service due to their material and manufacturing limitations. The primary limitations include processing difficulties, requiring costly non-conventional or multi-step processing requirements, and large lamellar grains, often leading to lowered damage tolerance. We have developed a new class of TiAl-based alloys, called beta gamma, which would remove or reduce such barriers. Unlike existing gamma alloys, beta gamma alloys are designed such that the ductile beta phase is adequate at elevated temperatures (for processing) but low or negligible at the anticipated use temperatures (for performance). The alloys also feature significant grain refinement and compositional homogeneity. This program is aimed to utilize such beneficial beta-phase distribution and microstructure features to develop the process technology to produce low-cost beta gamma alloy mill products such as thin sheets and rectangular bars with potentially improved properties. These low-density (4.1g/cm3) products are expected to be used at least up to 1300 degrees F, showing application potential for airframe and engine structures.

Principal Investigator:

Young-Won Kim
Research Scientist
9372551321
ywkim@ues.com

Business Contact:

Bryce W. Skinn
Business Relations Manager
9374266900
bskinn@ues.com
Small Business Information at Submission:

UES, INC.
4401 Dayton-Xenia Road Dayton, OH 45432

EIN/Tax ID: 310797776
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No