Newtonian Flow in Bulk Amorphous Alloys

Wadsworth, J; Nieh, T G

doi:10.1557/PROC-601-141

Title: Newtonian Flow in Bulk Amorphous Alloys

Conference · Wed Sep 27 00:00:00 EDT 2000

DOI:https://doi.org/10.1557/PROC-601-141· OSTI ID:791076

Wadsworth, J; Nieh, T G

Bulk amorphous alloys have many unique properties, e.g., superior strength and hardness, excellent corrosion resistance, reduced sliding friction and improved wear resistance, and easy formability in a viscous state. These properties, and particularly easy formability, are expected to lead to applications in the fields of near-net-shape fabrication of structural components. Whereas large tensile ductility has generally been observed in the supercooled liquid region in metallic glasses, the exact deformation mechanism, and in particular whether such alloys deform by Newtonian viscous flow, remains a controversial issue. In this paper, existing data are analyzed and an interpretation for the apparent controversy is offered. In addition, new results obtained from an amorphous alloy (composition: Zr-10Al-5TI-17.9Cu-14.6Ni, in at. %) are presented. Structural evolution during plastic deformation is particularly characterized. It is suggested that the appearance of non-Newtonian behavior is a result of the concurrent crystallization of the amorphous structure during deformation.

View Conference

Cite

Export

Save

Research Organization:: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

Sponsoring Organization:: USDOE Office of Defense Programs (DP) (US)

DOE Contract Number:: W-7405-Eng-48

OSTI ID:: 791076

Report Number(s):: UCRL-JC-140606; TRN: US200302%%185

Resource Relation:: Journal Volume: 601; Conference: Materials Research Society Fall 1999 Meeting, Boston, MA (US), 11/29/1999--12/03/1999; Other Information: PBD: 27 Sep 2000

Country of Publication:: United States

Language:: English

References (24)

Viscosity, Plasticity, and Diffusion as Examples of Absolute Reaction Rates Eyring, Henry The Journal of Chemical Physics, Vol. 4, Issue 4 https://doi.org/10.1063/1.1749836	journal	April 1936
Unloading yield effects in aluminum alloys Nieh, T. G.; Nix, W. D. Metallurgical Transactions A, Vol. 17, Issue 1 https://doi.org/10.1007/BF02644448	journal	January 1986
Superplastic deformation characteristics and constitution equation in rapidly solidified Mg–Al–Ga alloy Uoya, A.; Shibata, T.; Higashi, K. Journal of Materials Research, Vol. 11, Issue 11 https://doi.org/10.1557/JMR.1996.0346	journal	November 1996
Viscosity of the supercooled liquid and relaxation at the glass transition of the Zr46.75Ti8.25Cu7.5Ni10Be27.5 bulk metallic glass forming alloy Busch, R.; Bakke, E.; Johnson, W. L. Acta Materialia, Vol. 46, Issue 13 https://doi.org/10.1016/S1359-6454(98)00122-0	journal	August 1998
Non-crystalline Structure in Solidified Gold–Silicon Alloys Klement, W.; Willens, R. H.; Duwez, Pol Nature, Vol. 187, Issue 4740 https://doi.org/10.1038/187869b0	journal	September 1960
Hot deformation of a metallic glass Homer, C.; Eberhardt, A. Scripta Metallurgica, Vol. 14, Issue 12 https://doi.org/10.1016/0036-9748(80)90188-X	journal	December 1980
Superplasticity in Pd40Ni40P20 metallic glass Kawamura, Yoshihito; Nakamura, Toshihiro; Inoue, Akihisa Scripta Materialia, Vol. 39, Issue 3 https://doi.org/10.1016/S1359-6462(98)00163-8	journal	July 1998
Recent studies of chemical properties of amorphous alloys Hashimoto, K.; Kumagai, N.; Yoshioka, H. Materials Science and Engineering: A, Vol. 133 https://doi.org/10.1016/0921-5093(91)90007-A	journal	March 1991
High-Strain-Rate Superplasticity due to Newtonian Viscous Flow in La₅₅Al₂₅Ni₂₀ Metallic Glass Kawamura, Yoshihito; Nakamura, Toshihiro; Inoue, Akihisa Materials Transactions, JIM, Vol. 40, Issue 8 https://doi.org/10.2320/matertrans1989.40.794	journal	January 1999
Stress Overshoot in Stress-Strain Curves of Zr₆₅Al₁₀Ni₁₀Cu₁₅ Metallic Glass Kawamura, Yoshihito; Shibata, Tsutomu; Inoue, Akihisa Materials Transactions, JIM, Vol. 40, Issue 4 https://doi.org/10.2320/matertrans1989.40.335	journal	January 1999
Stress dependence of creep in nanocrystalline Ni-P alloy Deng, J.; Wang, D. L.; Kong, Q. P. Scripta Metallurgica et Materialia, Vol. 32, Issue 3 https://doi.org/10.1016/S0956-716X(99)80063-6	journal	February 1995
Creep of nanocrystalline NiP alloy Wang, D. L.; Kong, Q. P.; Shui, J. P. Scripta Metallurgica et Materialia, Vol. 31, Issue 1 https://doi.org/10.1016/0956-716X(94)90093-0	journal	July 1994
The deformation of amorphous palladium-20 at.% silicon Maddin, R.; Masumoto, T. Materials Science and Engineering, Vol. 9 https://doi.org/10.1016/0025-5416(72)90027-4	journal	January 1972
Test environments and mechanical properties of Zr-base bulk amorphous alloys Liu, C. T.; Heatherly, L.; Horton, J. A. Metallurgical and Materials Transactions A, Vol. 29, Issue 7 https://doi.org/10.1007/s11661-998-0004-6	journal	July 1998
Creep, stress relaxation and structural change of amorphous alloys Taub, A. I.; Luborsky, F. E. Acta Metallurgica, Vol. 29, Issue 12 https://doi.org/10.1016/0001-6160(81)90031-6	journal	December 1981
Crystallization and High Mechanical Strength of Al-Based Amorphous Alloys Kim, Y. H.; Hiraga, K.; Inoue, A. Materials Transactions, JIM, Vol. 35, Issue 5 https://doi.org/10.2320/matertrans1989.35.293	journal	January 1994
Structural stability and mechanical properties of amorphous metals Masumoto, T.; Maddin, R. Materials Science and Engineering, Vol. 19, Issue 1 https://doi.org/10.1016/0025-5416(75)90002-6	journal	May 1975
A microscopic mechanism for steady state inhomogeneous flow in metallic glasses Spaepen, Frans Acta Metallurgica, Vol. 25, Issue 4 https://doi.org/10.1016/0001-6160(77)90232-2	journal	April 1977
Superplastic deformation of Zr65Al10Ni10Cu15 metallic glass Kawamura, Yoshihito; Shibata, Tsutomu; Inoue, Akihisa Scripta Materialia, Vol. 37, Issue 4 https://doi.org/10.1016/S1359-6462(97)00105-X	journal	August 1997
Plastic deformation in metallic glasses Argon, A. S. Acta Metallurgica, Vol. 27, Issue 1 https://doi.org/10.1016/0001-6160(79)90055-5	journal	January 1979
Non-newtonian plastic flow of a Ni-Si-B metallic glass at low stresses Csach, K.; Fursova, Yu. V.; Khonik, V. A. Scripta Materialia, Vol. 39, Issue 10 https://doi.org/10.1016/S1359-6462(98)00323-6	journal	October 1998
Deformation-induced nanocrystal formation in shear bands of amorphous alloys Chen, H.; He, Y.; Shiflet, G. J. Nature, Vol. 367, Issue 6463 https://doi.org/10.1038/367541a0	journal	February 1994
Mechanisms of High Strain-Rate Superplasticity of Al-14 mass%Ni-14 mass%Mm (Misch Metal) Alloy Produced from Amorphous Powder Higashi, Kenji; Mukai, Toshiji; Uoya, Akihiro Materials Transactions, JIM, Vol. 36, Issue 12 https://doi.org/10.2320/matertrans1989.36.1467	journal	January 1995
Ultrahigh Tensile Strengths of Al₈₈Y₂Ni₉M₁ (M=Mn or Fe) Amorphous Alloys Containing Finely Dispersed fcc-Al Particles Kim, Yeong-Hwan; Inoue, Akihisa; Masumoto, Tsuyoshi Materials Transactions, JIM, Vol. 31, Issue 8 https://doi.org/10.2320/matertrans1989.31.747	journal	January 1990

Similar Records

Newtonian flow in bulk amorphous alloys

Conference · Sat Jul 01 00:00:00 EDT 2000 · OSTI ID:791076

Wadsworth, J; Nieh, T G

Nano-scratch behavior of a bulk Zr-10Al-5Ti-17.9Cu-14.6Ni amorphous alloy

Journal Article · Sat Apr 01 00:00:00 EST 2000 · Journal of Materials Research · OSTI ID:791076

Wang, J G; Choi, B W; Nieh, T G; +1 more

Superplastic behavior of a Zr-10Al-5Ti-17.9Cu-14.6Ni metallic glass in the supercooled liquid region

Journal Article · Fri Apr 09 00:00:00 EDT 1999 · Scripta Materialia · OSTI ID:791076

Nieh, T G; Wadsworth, J; Mukai, T; +1 more

Related Subjects

36 MATERIALS SCIENCE
ALLOYS
CORROSION RESISTANCE
CRYSTALLIZATION
DEFORMATION
DUCTILITY
FABRICATION
HARDNESS
METALLIC GLASSES
PLASTICS
SLIDING FRICTION
VISCOUS FLOW
WEAR RESISTANCE

Title: Newtonian Flow in Bulk Amorphous Alloys

Citation Formats

References (24)

Similar Records

Related Subjects