SBIR/STTR Research Award

ACCELERATED STRESS CORROSION CRACKING SCREENING TEST METHOD FOR HY-130 STEELS

Award identifier af6bd4ec165a009add8e7b1c86ae36d5aa9c4fadd5485719164bb7653e85a051Awarding agency Department of Defense · Navy

Award amount

$66,400

Program and phase

SBIR · Phase I

Award year

1988

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Award details

Awarding agency
Department of Defense
Branch
Navy
Recipient company
Microalloying International In
Proposal award date
Not reported
Contract end date
Not reported
UEI
Not reported
Solicitation number
Not reported
Topic code
Not reported

Research abstract

THE OVERALL OBJECTIVE OF THE PROPOSED RESEARCH IS TO INVESTIGATE THE USE OF THE ELECTRICAL POTENTIAL DROP TECHNIQUE AS AN ACCELERATED TEST METHOD FOR DETERMINING THE STRESS CORROSION CRACKING RESISTANCE OF HY-130 STEEL WELDMENTS UNDER CATHODIC PROTECTION IN NATURAL SEAWATER AT AMBIENT TEMPERATURES. WELDS WILL BE DEPOSITED IN 1-INCH THICK HY-130 STEEL BUTT JOINTS. COMPACT TENSION FRACTURE-MECHANICS TYPE SPECIMENS WILL BE MACHINED FROM THE WELDS. DUPLICATE SPECIMENS WILL BE TESTED WITH THE FATIGUE CRACK LOCATED IN THE BASE METAL, IN THE HEAT-AFFECTED ZONE (HAZ), AND IN THE WELD METAL. THE RESULTS WILL BE COMPARED TO EXISTING DATA FROM LONG-TERM TESTS.

Technology keywords

Not reported

Agency intelligence

Department of Defense

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