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A New Hydrogen Assisted Crack Detector Using Ultrasonic Guided Wave…

Award Information

Department of Defense
Office of the Secretary of Defense
Award ID:
Program Year/Program:
2005 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Intelligent Automation, Inc.
15400 Calhoun Drive Suite 400 Rockville, MD -
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 2005
Title: A New Hydrogen Assisted Crack Detector Using Ultrasonic Guided Wave Leave-in-Place Sensors
Agency / Branch: DOD / OSD
Contract: N00014-05-M-0300
Award Amount: $100,000.00


High strength steel alloys are widely used for military and industry structures like ship frame, gun barrel and pipelines. One significant limitation of the use of high strength steel alloy components is hydrogen embrittlement cracking. Hydrogen, in the atomic form, can enter the materials from many sources (1) steel making, (2) welding, (3) corrosion and (4) cathodic protection. It can produce a range of deterioration resulting in reduced ductility to brittle fracture. The deterioration is even worse under sustained tensile load. In this proposal, Intelligent Automation Inc. (IAI) proposes a new approach to characterize and predict the behavior of Hydrogen Assisted Cracking (HAC) in high strength steel alloys. The technique is composed of very small, low cost guided wave leave-in-place health monitoring sensors known as piezo-disks, innovative Correlation Analysis Technique (CAT) for fast crack sizing and localization, and a miniaturized single board computer (SBC) with data acquisition and processing capabilities and a digital LED for displaying final results. A wireless module could also be added for remote monitoring. It is envisioned the total cost of this system will be less than $1500.

Principal Investigator:

George Zhao
Research Engineer

Business Contact:

Mark James
Contracts and Proposals Manager
Small Business Information at Submission:

15400 Calhoun Drive, Suite 400 Rockville, MD 20855

EIN/Tax ID: 521497192
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No