Actions for Volumetric and Surface Positron Annihilation Studies of Fatigue Damage Accumulation in a Steel Alloy

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Volumetric and Surface Positron Annihilation Studies of Fatigue Damage Accumulation in a Steel Alloy / Christopher D. Glancey, Robert R. Stephens

Conference Author
Fatigue and Fracture Mechanics: 35th Volume (35th : 2005 : Reno, Nevada)
Physical Description
1 online resource (10 pages) : illustrations, figures, tables
Additional Creators
Stephens, Robert R., Glancey, Christopher D., American Society for Testing and Materials, and ASTM International
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Summary
Fatigue crack nucleation comprises a significant portion of the fatigue life for many structures. The ability to inspect and quantify damage before significant cracks appear could improve safety while allowing components to be retired only when they have reached the end of their useful life. Positron annihilation is one technique that allows for observation of damage accumulation on a much smaller scale than traditional nondestructive evaluation techniques. As-polished and shot-peened 300M steel specimens were fatigued under constant amplitude. Tests were interrupted at several fatigue life ratios between the as-received and failed conditions, and damage was measured with positron annihilation techniques. Positron annihilation was sensitive to both induced residual stresses and fatigue damage build up, but measurement uncertainty was high and sensitivity was low. Positron annihilation presents a potentially revolutionary nondestructive evaluation technique that could give a quantitative measure of early fatigue damage.
Dates of Publication and/or Sequential Designation
Volume 2007, Issue 1480 (January 2007)
Subject(s)
Other Subject(s)
ISBN
9780803162471 (e-ISBN)
9780803134065
0803134061
Digital File Characteristics
text file PDF
Bibliography Note
Includes bibliographical references 12.
Other Forms
Also available online via the World Wide Web. Tables of contents and abstracts freely available; full-text articles available by subscription.
Full text article also available for purchase.
Also available in PDF edition.
Reproduction Note
Electronic reproduction. W. Conshohocken, Pa. : ASTM International, 2007. Mode of access: World Wide Web. System requirements: Web browser. Access may be restricted to users at subscribing institutions.
Technical Details
Mode of access: World Wide Web.
Source of Acquisition
ASTM International PDF Purchase price USD25.
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