Mechanical Property Characterization and Modeling for Structural Mo-Si-B Alloys for High Temperature Applications

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N00014-13-P-1161
Agency Tracking Number: N13A-012-0029
Amount: $80,000.00
Phase: Phase I
Program: STTR
Awards Year: 2013
Solicitation Year: 2013
Solicitation Topic Code: N13A-T012
Solicitation Number: 2013.A
Small Business Information
Deep Springs Technology
4750 W. Bancroft St., Suite 5, Toledo, OH, -
DUNS: 797877847
HUBZone Owned: N
Woman Owned: Y
Socially and Economically Disadvantaged: N
Principal Investigator
 Oliver Strbik
 Executive Vice President
 (419) 536-5741
 ostrbik@teamdst.com
Business Contact
 Derek Diller
Title: CFO
Phone: (419) 536-5741
Email: ddiller@teamdst.com
Research Institution
 Brown University
 Sharvan K Ph.D.
 47 George St.
Providence, RI, 02912-
 (401) 863-2862
 Nonprofit college or university
Abstract
The objective of the work described in this proposal is to aid in the advancement of Mo-Si-B alloys for use in high temperature applications such as hot gas stream components in turbine engines. Such alloys are being characterized for their monotonic tensile properties in tension and compression as well for their creep resistance. Likewise, multiphase Mo-Si-B alloys have been studied in terms of monotonic and cyclic crack growth and creep fatigue interactions. Less is known about their cyclic deformation response. Computer modeling has been applied to the Mo-Si-B alloy system. However, only 2D studies have been conducted on this material. The accuracy of prediction was found to be very good when the 2D microstructure based simulations were conducted. These studies can be extended to model the failure mechanisms with high level of accuracy because of capturing the stress profile in the material with very high level of accuracy, including the stress concentration location and magnitude and crack length for intergranular fracture. The present work will strive to develop 3D models of the alloy microstructure, and conduct analysis over a range of temperatures and strain rate; all of which are not yet available for this alloy in the existing studies.

* information listed above is at the time of submission.

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