Paper Titles
Preface, Committees and Dedication
Cobalt and the Toughness of Steel
p.3
Grain Boundary Embrittlement and De-Embrittlement in Age Hardenable Iron Alloys
p.11
Ultrafine Grained Steel Wire and its Formability
p.19
Quantitative Non-Destructive Evaluation of Steel Microstructure Using Elastic Wave Perturbation
p.27
Rheological Behavior of Various Al Alloys during Solidification
p.35
Structure and Defect Formation during DC Casting of Aluminium Alloys
p.43
Selection and Design Principles of Wrought Aluminium Alloys for Structural Applications
p.50
Processing, Structure, Texture and Microtexture in Titanium Alloys
p.66

Quantitative Non-Destructive Evaluation of Steel Microstructure Using Elastic Wave Perturbation

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Abstract:

The purpose of this investigation is to develop the nondestructive tools for microstructure assessments in carbon alloyed steels. The role of carbon in steel and its effects on electromagnetic property and also the free electron model have been reviewed. The fundamental electromagnetic principle behind low frequency impedance measurements has been included. The systematic analysis of phonon vibration and ultrasonic resonance spectroscopy for elastic wave perturbation in T22 Cr-Mo steel has been presented. A brief examination of nondestructive microstructure evaluation techniques has been described. The induced microstructure variations in Grade T22 Cr-Mo steel, including the correlations of changes in physical (microstructure) and mechanical (hardness data) properties during annealing have been measured. The explanations of aged carbide precipitates, martensitic and pearlitic nucleation and growth have been illustrated. The possibility of simultaneous use of two nondestructive wave techniques is discussed. The electron model and electron interactions are associated and are shown to support the results of low frequency impedance measurements enhanced elastic wave perturbations.

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Periodical:

Materials Science Forum (Volume 710)

Pages:

27-34

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.710.27

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Online since:

January 2012

Authors:

Brajendra Mishra, Peerapong Kiattisaksri, Jonathan Poncelow, David L. Olson

Keywords:

Carbide, Cr-Mo Steel, Elastic Wave, Impedance, Microstructure, Non-Destructive Evaluation, Resonant Frequency

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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References

[1] Fukai, Y., The Metal Hydrogen System: Basic Bulk Properties, Springer Series in Material Science, New York, 1993.

Google Scholar

[2] Gavriljuk V. G., Shivanyuk V. N., and B. D. Shanina, Change in the Electron Structure Caused by C, N and H Atoms in Iron and Its Effect on Their Interaction with Dislocations, Acta Materials, Vol.53, pp.5017-5024, 2005.

DOI: 10.1016/j.actamat.2005.07.028

Google Scholar

[3] Kittel, C., Introduction to Solid State Physics, 7th Ed.,John Wiley & Sons, New York, Chapter 6: Free Electron Fermi Gas and Chapter 7: Energy Bands, pp.143-196, New York, 1996.

Google Scholar

[4] Ashby M. F., Ghandi C. and Taplin D. M. R., Fracture-Mechanism Maps and Their Construction for FCC Metals and Alloys, Acta Metallurgy., Vol.27, 1979.

Google Scholar

[5] Liu S., Madeni J. C., Olson D. L., Hellner R., Petr V. and Coleman K., Evolution of Carbide Precipitates in Cr-Mo Steels in the Power Industry: Morphology and Stability, and Characterization Techniques, International Steel Technologies Symposium Innovation and Green Production, Kaoshiung, Taiwan, 2010.

DOI: 10.1179/174892310x12811032099955

Google Scholar