Residual stresses in bulk metallic glasses - I: Modeling

C. Can Aydiner; Ersan Üstündag

doi:10.4028/www.scientific.net/msf.404-407.49

Residual stresses in bulk metallic glasses - I: Modeling

C. Can Aydiner^*, Ersan Üstündag

^*Corresponding author for this work

California Institute of Technology Division of Engineering and Applied Science

Research output: Contribution to journal › Conference article › peer-review

Abstract

The recent advent of multi-component alloys with exceptional glass forming ability has allowed the processing of large metallic specimens with amorphous structure. The possibility of formation of thermal tempering stresses during the processing of these bulk metallic glass (BMG) specimens was first investigated using an "instant freezing model". It was shown that convective cooling of Zr_41.2Ti_13.8Cu_12.5Ni₁₀Be_22.5 plates with high heat transfer coefficients could potentially generate significant compressive stresses balanced with mid-plane tension. The predictions of the instant freezing model were then compared to calculations that consider the viscoelastic properties of BMGs.

Original language	English
Pages (from-to)	49-54
Number of pages	6
Journal	Materials Science Forum
Volume	404-407
DOIs	https://doi.org/10.4028/www.scientific.net/msf.404-407.49
Publication status	Published - 2002
Externally published	Yes
Event	Proceedings of the 6th European Conference on Residual Stresses - Coimbra, Portugal Duration: 10 Jul 2002 → 12 Jul 2002

Keywords

Instant freezing model
Metallic glass
Residual stress
Thermal tempering
Viscoelasticity
Viscosity

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title = "Residual stresses in bulk metallic glasses - I: Modeling",

abstract = "The recent advent of multi-component alloys with exceptional glass forming ability has allowed the processing of large metallic specimens with amorphous structure. The possibility of formation of thermal tempering stresses during the processing of these bulk metallic glass (BMG) specimens was first investigated using an {"}instant freezing model{"}. It was shown that convective cooling of Zr41.2Ti13.8Cu12.5Ni10Be22.5 plates with high heat transfer coefficients could potentially generate significant compressive stresses balanced with mid-plane tension. The predictions of the instant freezing model were then compared to calculations that consider the viscoelastic properties of BMGs.",

keywords = "Instant freezing model, Metallic glass, Residual stress, Thermal tempering, Viscoelasticity, Viscosity",

author = "Aydiner, {C. Can} and Ersan {\"U}st{\"u}ndag",

year = "2002",

doi = "10.4028/www.scientific.net/msf.404-407.49",

language = "English",

volume = "404-407",

pages = "49--54",

journal = "Materials Science Forum",

issn = "0255-5476",

publisher = "Trans Tech Publications Ltd",

note = "Proceedings of the 6th European Conference on Residual Stresses ; Conference date: 10-07-2002 Through 12-07-2002",

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T1 - Residual stresses in bulk metallic glasses - I

T2 - Proceedings of the 6th European Conference on Residual Stresses

AU - Aydiner, C. Can

AU - Üstündag, Ersan

PY - 2002

Y1 - 2002

N2 - The recent advent of multi-component alloys with exceptional glass forming ability has allowed the processing of large metallic specimens with amorphous structure. The possibility of formation of thermal tempering stresses during the processing of these bulk metallic glass (BMG) specimens was first investigated using an "instant freezing model". It was shown that convective cooling of Zr41.2Ti13.8Cu12.5Ni10Be22.5 plates with high heat transfer coefficients could potentially generate significant compressive stresses balanced with mid-plane tension. The predictions of the instant freezing model were then compared to calculations that consider the viscoelastic properties of BMGs.

AB - The recent advent of multi-component alloys with exceptional glass forming ability has allowed the processing of large metallic specimens with amorphous structure. The possibility of formation of thermal tempering stresses during the processing of these bulk metallic glass (BMG) specimens was first investigated using an "instant freezing model". It was shown that convective cooling of Zr41.2Ti13.8Cu12.5Ni10Be22.5 plates with high heat transfer coefficients could potentially generate significant compressive stresses balanced with mid-plane tension. The predictions of the instant freezing model were then compared to calculations that consider the viscoelastic properties of BMGs.

KW - Instant freezing model

KW - Metallic glass

KW - Residual stress

KW - Thermal tempering

KW - Viscoelasticity

KW - Viscosity

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DO - 10.4028/www.scientific.net/msf.404-407.49

M3 - Conference article

AN - SCOPUS:0036435375

SN - 0255-5476

VL - 404-407

SP - 49

EP - 54

JO - Materials Science Forum

JF - Materials Science Forum

Y2 - 10 July 2002 through 12 July 2002

ER -

Residual stresses in bulk metallic glasses - I: Modeling

Abstract

Keywords

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