Internal friction in Cu-Ti glass

Moorthy, S A; Baburaj, E G; Dey, G K

doi:10.1016/0956-716X(94)90077-9

Title: Internal friction in Cu-Ti glass

Full Record
Other Related Research

Abstract

Internal friction in solids is highly structure-sensitive and can be an effective means of studying the kinetics of atomic rearrangements associated with structural relaxation and crystallization in metallic glasses. Though a very large number of studies have been carried out on the crystallization behavior of metallic glasses, studies on structural relaxation, particularly the atomic rearrangement mechanism during structural relaxation, are few in comparison. Internal friction technique is a very useful method of studying thermally activated relaxation in an amorphous structure. Earlier studies have shown that metallic glasses exhibit a considerable amount of internal friction, particularly above 473 K, which besides being markedly reducible by structural relaxation, increases exponentially with increasing temperature, reaching a maximum during crystallization and then falls rapidly to a very low value at the completion of crystallization. In the present investigation, internal friction behavior of Cu[sub 49.5]Ti[sub 50.5] glass is studied in the temperature range covering both structural relaxation and crystallization. The glass transition temperature T[sub g] as well as crystallization temperature T[sub p] are determined and the distribution spectrum of activation energies for structural relaxation is discussed. Some comparisons are made with the DSC results and also with the results obtained in the case of Zr[submore » 76]Ni[sub 24] glass.« less

Authors:

Moorthy, S A; Baburaj, E G; Dey, G K ^[1]

Bhabha Atomic Research Centre, Bombay (India). Metallurgy Division

Publication Date:: Thu Dec 01 00:00:00 EST 1994

OSTI Identifier:: 6989146

Resource Type:: Journal Article

Journal Name:: Scripta Metallurgica et Materialia; (United States)

Additional Journal Information:: Journal Volume: 31:11; Journal ID: ISSN 0956-716X

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; COPPER ALLOYS; CRYSTALLIZATION; INTERNAL FRICTION; METALLIC GLASSES; TITANIUM BASE ALLOYS; EXPERIMENTAL DATA; ALLOYS; DATA; FRICTION; INFORMATION; NUMERICAL DATA; PHASE TRANSFORMATIONS; TITANIUM ALLOYS; 360104* - Metals & Alloys- Physical Properties; 360102 - Metals & Alloys- Structure & Phase Studies

Citation Formats


                    Moorthy, S A, Baburaj, E G, and Dey, G K. Internal friction in Cu-Ti glass.  United States: N. p., 1994. 
        Web.  doi:10.1016/0956-716X(94)90077-9.

Copy to clipboard


                    Moorthy, S A, Baburaj, E G, & Dey, G K. Internal friction in Cu-Ti glass.  United States.  https://doi.org/10.1016/0956-716X(94)90077-9

Copy to clipboard


                    Moorthy, S A, Baburaj, E G, and Dey, G K. 1994.  
        "Internal friction in Cu-Ti glass".  United States.  https://doi.org/10.1016/0956-716X(94)90077-9.

Copy to clipboard


                    
@article{osti_6989146,

  title        = {Internal friction in Cu-Ti glass},

  author       = {Moorthy, S A and Baburaj, E G and Dey, G K},

  abstractNote = {Internal friction in solids is highly structure-sensitive and can be an effective means of studying the kinetics of atomic rearrangements associated with structural relaxation and crystallization in metallic glasses. Though a very large number of studies have been carried out on the crystallization behavior of metallic glasses, studies on structural relaxation, particularly the atomic rearrangement mechanism during structural relaxation, are few in comparison. Internal friction technique is a very useful method of studying thermally activated relaxation in an amorphous structure. Earlier studies have shown that metallic glasses exhibit a considerable amount of internal friction, particularly above 473 K, which besides being markedly reducible by structural relaxation, increases exponentially with increasing temperature, reaching a maximum during crystallization and then falls rapidly to a very low value at the completion of crystallization. In the present investigation, internal friction behavior of Cu[sub 49.5]Ti[sub 50.5] glass is studied in the temperature range covering both structural relaxation and crystallization. The glass transition temperature T[sub g] as well as crystallization temperature T[sub p] are determined and the distribution spectrum of activation energies for structural relaxation is discussed. Some comparisons are made with the DSC results and also with the results obtained in the case of Zr[sub 76]Ni[sub 24] glass.},

  doi          = {10.1016/0956-716X(94)90077-9},

  url          = {https://www.osti.gov/biblio/6989146},
  journal      = {Scripta Metallurgica et Materialia; (United States)},

  issn         = {0956-716X},

  number       = ,

  volume       = 31:11,

  place        = {United States},

  year         = {Thu Dec 01 00:00:00 EST 1994},

  month        = {Thu Dec 01 00:00:00 EST 1994}

}

Copy to clipboard

Journal Article:

https://doi.org/10.1016/0956-716X(94)90077-9

Other availability

Find in Google Scholar

Search WorldCat to find libraries that may hold this journal

Save / Share:

Export Metadata

Save to My Library

Similar records in OSTI.GOV collections:

Study of excitation of low energy for the low-temperature internal friction in the metallic glass Co sub 35 Y sub 65

Journal Article Jin, Z; Zou, X; Liu, F - Journal of Applied Physics; (USA)

Based on the unified theory of low-frequency fluctuation, dissipation, and relaxation processes, we studied the broad and asymmetric low-temperature internal friction peak of the metallic glass Co{sub 35}Y{sub 65}. This theory, which differs from that of distributed relaxation times, involves only a single relaxation time {tau}{sub {ital P}}. By this theory, the calculated infrared-divergence exponent {ital n}=0.62, characteristic relaxation time {tau}{sub {infinity}}=2{times}10{sup {minus}14} s, actual activation energy {ital E}{sub {ital A}}=0.2 eV, and apparent activation energy {ital E}{sup *}{sub {ital A}} =0.52 eV. They are in agreement with available experimental results ({tau}{sub {infinity}}=2.2{times}10{sup {minus}14} s, {ital E}{sub {ital A}}=0.25 eV,more »« less
https://doi.org/10.1063/1.345864
SOLID STATE DIVISION ANNUAL PROGRESS REPORT FOR PERIOD ENDING AUGUST 31, 1959

Technical Report

; 5 8 : 5 : 8 : : 9 < 6 8 9 6 8 6 5 ; 8 6 : 4 9 > < D ; lattice atom was investigated in detail. The results are of general interest since the method used is limited only by the validity of the interatomic potential assummed. Cross sections for the displacement of lattice atoms by gamma rays up to 5 Mev were calculated. A theoretical study was made of the slowing down process for a primary displaced atom in a solid. The small amplitude motion of dislocation loops was investigated inmore »« less
https://doi.org/10.2172/4193524

Full Text Available
Atomic-Scale Surface Studies of Bulk Metallic Glasses. Final Report

Technical Report Schwarz, Udo

Bulk metallic glasses (BMGs) are of both scientific and technological interest because the absence of periodic atomic arrangements provides them with unique physical, chemical, and mechanical properties. Their high strength, superior elasticity, and an ability to be easily formed into virtually unlimited shapes with feature sizes from centimeters to Angstroms by blow molding and thermoplastic forming makes them an attractive choice for more and more practical applications and products. Due to their complex internal structure, however, experiments that yield insight into their exact atomic arrangements have been scarce. As a result, glass physics is one of the last remaining unexploredmore »« less
https://doi.org/10.2172/1875750

Full Text Available
Glass transition temperature studies of planetary ball milled glasses: Accessing the rapidly cooled glassy state in Na₄P₂S_7-xO_x, 0 ≤ x ≤ 7, Oxy-thio phosphate glasses

Journal Article Joyce, Adriana; Kmiec, Steven; Martin, Steve - Journal of Non-Crystalline Solids

This paper details the very first in-depth study of the glass transition temperature (T_g) for planetary balled milled (PBM) Na₄P₂S_7-xO_x (NaPSO), where 0 ≤ x ≤ 7, glasses. For 0 ≤ x ≤ 5, fully amorphous, homogeneous, and chemically reacted compositions can be prepared. For samples with 5 < x ≤ 7, partially amorphous but fully chemically reacted glass-ceramics can be produced. The reproducible, thermally cyclable onset T_g and the onset crystallization temperature, T_c, were investigated as a function of the composition and of the short-range order (SRO) structures of the glasses. Additionally, we examined the extreme sub-T_g exothermic relaxationsmore »« less
https://doi.org/10.1016/j.jnoncrysol.2020.120462

Full Text Available
The isothermal precipitation behavior in a low-carbon steel at low temperatures investigated by internal friction

Journal Article Neife, S; Pink, E; Stuewe, H - Scripta Metallurgica et Materialia; (United States)

The precipitation behavior of metals is commonly demonstrated in continuous or in isothermal time-temperature transformation diagrams. Best known are such diagrams for steel with carbon concentrations above 0.2 wt%. Isothermal TTT''-diagrams are used to show the aging properties of aluminium alloys. Conventional methods to establish TTT-diagrams comprise the analysis of the microstructure, strength measurements, dilatometric observations and the measurement of the electrical resistivity. All these methods measure directly the results of precipitation. Except for the last of these methods, all others may fail to work when the amount of the precipitated phase is too small for detection. A very sensitivemore »« less
https://doi.org/10.1016/0956-716X(94)90389-1

Similar Records