INTERNAL FRICTION SPECTRUM OF WC-Co COMPOSITE ALLOYS

1985 ◽  
Vol 46 (C10) ◽  
pp. C10-387-C10-390
Author(s):  
R. SCHALLER ◽  
J. J. AMMANN ◽  
A. KULIK ◽  
C. BONJOUR ◽  
W. BENOIT
Keyword(s):  
Internal Friction ◽  
Internal Friction Spectrum

THE INTERNAL FRICTION SPECTRUM OF PREMARTENSITIC TRANSFORMATIONS

1981 ◽  
Vol 42 (C5) ◽  
pp. C5-1037-C5-1042 ◽  
Author(s):  
O. Mercier ◽  
B. Tirbonod ◽  
E. Török
Keyword(s):  
Internal Friction ◽  
Internal Friction Spectrum

CHARACTERISTIC INTERNAL FRICTION SPECTRUM OF GREY CAST IRON

1981 ◽  
Vol 42 (C5) ◽  
pp. C5-929-C5-934 ◽  
Author(s):  
P. Millet ◽  
R. Schaller ◽  
W. Benoit
Keyword(s):  
Cast Iron ◽  
Internal Friction ◽  
Grey Cast Iron ◽  
Grey Cast ◽  
Internal Friction Spectrum

NEW ASPECTS ON THE INTERNAL FRICTION SPECTRUM OF COMMERCIAL Al-Mg-Si

1985 ◽  
Vol 46 (C10) ◽  
pp. C10-371-C10-374 ◽  
Author(s):  
A. GHILARDUCCI DE SALVA ◽  
S. URRETA DE PEREYRA ◽  
H. BERTORELLO
Keyword(s):  
Internal Friction ◽  
Internal Friction Spectrum

Anelastic Effects on Martensitic Carbon Steels during First Stage of Tempering

2012 ◽  
Vol 184 ◽  
pp. 221-226 ◽  
Author(s):  
J.J. Hoyos ◽  
A.A. Ghilarducchi ◽  
H.R. Salva ◽  
J.M. Vélez
Keyword(s):  
Carbon Steel ◽  
Low Temperature ◽  
Internal Friction ◽  
Relaxation Process ◽  
Forced Vibration ◽  
Carbide Precipitation ◽  
Carbon Steels ◽  
Deformation Amplitude ◽  
Temperature Rate ◽  
Internal Friction Spectrum

The evolution of martensitic carbon steel during low temperature tempering was studied using internal friction. The steel containing 0.71wt.% carbon was heated at 1093K for 5min and then rapidly cooled into water (quenched), and tempered for 10 min at 340, 380, 420 and 460K. Additionally, other samples were tempered at 380K for 1 and 20 hours. Internal friction was measured by using a forced vibration pendulum, in a temperature range from 300 to 600K, with deformation amplitude 3 x 10-6 and temperature rate of 0.8 K/min. The internal friction spectrum is decomposed into three Debye peaks: P1 at 380K, P2 at 420K and P3 at 480K, for 3 Hz. P1 is attributed to the epsilon carbide precipitation. P2 and P3 are associated to the dislocation relaxation process. P2 appears when dislocations are pinning with epsilon carbide and P3 appears when dislocations are pinning with cementite carbide.

Diffusion of hydrogen atoms and the internal friction spectrum of the PdH x system

2008 ◽  
Vol 82 (8) ◽  
pp. 1397-1402
Author(s):  
V. A. Lomovskoi ◽  
B. F. Lyakhov ◽  
N. Yu. Lomovskaya ◽  
E. G. Belyaev
Keyword(s):  
Internal Friction ◽  
Hydrogen Atoms ◽  
Diffusion Of Hydrogen ◽  
Internal Friction Spectrum

Features of the Sn high-temperature internal friction spectrum

1987 ◽  
Vol 30 (3) ◽  
pp. 252-256
Author(s):  
B. G. Strongin ◽  
A. V. Oleinich ◽  
I. A. Varvus
Keyword(s):  
High Temperature ◽  
Internal Friction ◽  
Internal Friction Spectrum

Influence of the Degree of Hydration on the Relaxation Microheterogeneity of Segmental Mobility in PVA

2021 ◽  
Vol 899 ◽  
pp. 619-627
Author(s):  
Nina A. Abaturova ◽  
Nadezhda Yu. Lomovskaya ◽  
Svetlana A. Shatokhina ◽  
Viktor A. Lomovskoy
Keyword(s):  
Internal Friction ◽  
Polyvinyl Alcohol ◽  
Segmental Mobility ◽  
Torsional Oscillations ◽  
Degree Of Hydration ◽  
Dissipative Processes ◽  
Temperature Ranges ◽  
Internal Friction Spectrum

The study of local dissipative processes by the method of free-damped torsional oscillations excited in polyvinyl alcohol (PVA) showed the presence of three loss peaks in the internal friction spectrum in different temperature ranges of this spectrum [1].

Internal friction spectrum of the Pd/H x≤0.5 system

2006 ◽  
Vol 411 (1) ◽  
pp. 301-304
Author(s):  
V. A. Lomovskoi ◽  
B. F. Lyakhov ◽  
N. Yu. Lomovskaya ◽  
A. Yu. Tsivadze
Keyword(s):  
Internal Friction ◽  
Internal Friction Spectrum
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