Molecular dynamics study of isothermal and adiabatic elastic moduli prior to martensitic transformation

T. Suzuki; M. Shimono; X. Ren; M. Wuttig

doi:10.1016/S0925-8388(03)00281-0

Molecular dynamics study of isothermal and adiabatic elastic moduli prior to martensitic transformation

T. Suzuki
, M. Shimono
, X. Ren
, M. Wuttig

National Institute for Materials Science Tsukuba
University of Maryland, College Park

科研成果: 期刊稿件 › 会议文章 › 同行评审

5 引用（Scopus）

摘要

A difference between the isothermal and adiabatic elastic moduli of a crystal signals damping at finite frequencies of vibration. Isothermal and adiabatic elastic moduli of B2 alloys with complete and incomplete long range order are calculated by use of the fluctuation formula of molecular dynamics. The results of the calculation show a decrease of the shear elastic modulus (c₁₁ - c₁₂)/2 upon approaching M_S. This temperature seems to decrease as the long range order decreases. An increase of damping as the temperature is lowered towards M_S is not obtained from the present calculation.

源语言	英语
页（从-至）	183-187
页数	5
期刊	Journal of Alloys and Compounds
卷	355
期	1-2
DOI	https://doi.org/10.1016/S0925-8388(03)00281-0
出版状态	已出版 - 30 6月 2003
已对外发布	是
活动	Proceedings of the International Symposium on High Damping Materials 2002 - Tokyo, 日本期限: 22 8月 2002 → 24 8月 2002

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title = "Molecular dynamics study of isothermal and adiabatic elastic moduli prior to martensitic transformation",

abstract = "A difference between the isothermal and adiabatic elastic moduli of a crystal signals damping at finite frequencies of vibration. Isothermal and adiabatic elastic moduli of B2 alloys with complete and incomplete long range order are calculated by use of the fluctuation formula of molecular dynamics. The results of the calculation show a decrease of the shear elastic modulus (c11 - c12)/2 upon approaching MS. This temperature seems to decrease as the long range order decreases. An increase of damping as the temperature is lowered towards MS is not obtained from the present calculation.",

keywords = "Elasticity, Intermetallics",

author = "T. Suzuki and M. Shimono and X. Ren and M. Wuttig",

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journal = "Journal of Alloys and Compounds",

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note = "Proceedings of the International Symposium on High Damping Materials 2002 ; Conference date: 22-08-2002 Through 24-08-2002",

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TY - JOUR

T1 - Molecular dynamics study of isothermal and adiabatic elastic moduli prior to martensitic transformation

AU - Suzuki, T.

AU - Shimono, M.

AU - Ren, X.

AU - Wuttig, M.

PY - 2003/6/30

Y1 - 2003/6/30

N2 - A difference between the isothermal and adiabatic elastic moduli of a crystal signals damping at finite frequencies of vibration. Isothermal and adiabatic elastic moduli of B2 alloys with complete and incomplete long range order are calculated by use of the fluctuation formula of molecular dynamics. The results of the calculation show a decrease of the shear elastic modulus (c11 - c12)/2 upon approaching MS. This temperature seems to decrease as the long range order decreases. An increase of damping as the temperature is lowered towards MS is not obtained from the present calculation.

AB - A difference between the isothermal and adiabatic elastic moduli of a crystal signals damping at finite frequencies of vibration. Isothermal and adiabatic elastic moduli of B2 alloys with complete and incomplete long range order are calculated by use of the fluctuation formula of molecular dynamics. The results of the calculation show a decrease of the shear elastic modulus (c11 - c12)/2 upon approaching MS. This temperature seems to decrease as the long range order decreases. An increase of damping as the temperature is lowered towards MS is not obtained from the present calculation.

KW - Elasticity

KW - Intermetallics

UR - https://www.scopus.com/pages/publications/0038348551

U2 - 10.1016/S0925-8388(03)00281-0

DO - 10.1016/S0925-8388(03)00281-0

M3 - 会议文章

AN - SCOPUS:0038348551

SN - 0925-8388

VL - 355

SP - 183

EP - 187

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

IS - 1-2

T2 - Proceedings of the International Symposium on High Damping Materials 2002

Y2 - 22 August 2002 through 24 August 2002

ER -

Molecular dynamics study of isothermal and adiabatic elastic moduli prior to martensitic transformation

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