A Dynamical Model of Internal Friction in Formation of Martensite
IR@NML: CSIR-National Metallurgical Laboratory, Jamshedpur
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| Title |
A Dynamical Model of Internal Friction in Formation of Martensite
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| Creator |
Dogan, Ali
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| Subject |
Materials Science
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| Description |
Coherent phonons which start martensitic formation are the solutions of Duffing equation. By using this idea the fric-tional force was included in this undamped nonlinear equa-tion. Numerical results were obtianed for Au-Cu-Zn (30 at% Cu, 47 at % Zn) and In-Ti (21 at % Ti) Single crystals. Dependence of vibrational amplitude of the phonons on freq-uency of driving force was researched for various tempe-ratures in the austentic range. It was found that damping effects change that strongly as the martensitic transf-ormation temperature, Ms, is approached. The proposed model in this study can explain jump phenomenon in the response curves more clearly and realistically when damp-ing is included.
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| Publisher |
CSIR -NML Jamshedpur
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| Date |
1991
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://eprints.nmlindia.org/4962/1/18-23.PDF
Dogan, Ali (1991) A Dynamical Model of Internal Friction in Formation of Martensite. NML Technical Journal, 33 (3-4). pp. 18-23. |
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| Relation |
http://eprints.nmlindia.org/4962
http://eprints.nmlindia.org/4962/ |
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