Anomalous internal friction associated with the thermoelastic martensitic transformation in a Cu–Al–Ni–Mn–Ti alloy

2007 ◽  
Vol 57 (3) ◽  
pp. 181-184 ◽  
Author(s):  
C.L. Gong ◽  
F.S. Han
Keyword(s):  
Martensitic Transformation ◽  
Internal Friction ◽  
Ti Alloy ◽  
Thermoelastic Martensitic Transformation

Study of Martensitic Transformation in Tini Intermetallic by the Methods of Low Frequency Internal Friction

2013 ◽  
Vol 738-739 ◽  
pp. 377-382 ◽  
Author(s):  
Galina Viktorovna Markova ◽  
Alexander V. Shuytcev ◽  
Anatoliy V. Kasimtcev
Keyword(s):  
Martensitic Transformation ◽  
Internal Friction ◽  
Heating Rate ◽  
Present Article ◽  
Strain Amplitude ◽  
Oscillation Frequency ◽  
Low Frequency ◽  
Equiatomic Composition ◽  
Thermoelastic Martensitic Transformation ◽  
Internal Friction Peak

The present article is dedicated to the study of thermoelastic martensitic transformation in the TiNi equiatomic composition by low-frequency internal friction. Considered the influence of oscillation frequency, strain amplitude and heating rate on the internal friction peak of the martensitic nature.

Physics of Thermoelastic Martensitic Transformation in High-Strength Single Crystals

2015 ◽  
Vol 81-82 ◽  
pp. 107-173 ◽  
Author(s):  
Yuri I. Chumlyakov ◽  
Irina V. Kireeva ◽  
Elena Y. Panchenko ◽  
Ekaterina E. Timofeeva ◽  
Irina V. Kretinina ◽  
...  
Keyword(s):  
Martensitic Transformation ◽  
Single Crystals ◽  
High Strength ◽  
Thermoelastic Martensitic Transformation

scholarly journals The Effect of Subsequent Stress-Induced Martensite Aging on the Viscoelastic Properties of Aged NiTiHf Polycrystals

Metals ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 1890
Author(s):  
Anton I. Tagiltsev ◽  
Elena Y. Panchenko ◽  
Ekaterina E. Timofeeva ◽  
Yuriy I. Chumlyakov ◽  
Ekaterina S. Marchenko ◽  
...  
Keyword(s):  
Elastic Modulus ◽  
Martensitic Transformation ◽  
Internal Friction ◽  
Shape Memory ◽  
Shape Memory Effect ◽  
Memory Effect ◽  
Viscoelastic Properties ◽  
Oriented Growth ◽  
Compressive Stresses ◽  
Significant Change

This study investigated the effect of stress-induced martensite aging under tensile and compressive stresses on the functional and viscoelastic properties in Ni50.3Ti32.2Hf17.5 polycrystals containing dispersed H-phase particles up to 70 nm in size obtained by preliminary austenite aging at 873 K for 3 h. It was found that stress-induced martensite aging at 428 K for 12 h results in the appearance of a two-way shape memory effect of −0.5% in compression and +1.8% in tension. Moreover, a significant change in viscoelastic properties can be observed: an increase in internal friction (by 25%) and a change in elastic modulus in tensile samples. The increase in internal friction during martensitic transformation after stress-induced martensite aging is associated with the oriented growth of thermal-induced martensite. After stress-induced martensite aging, the elastic modulus of martensite (EM) increased by 8 GPa, and the elastic modulus of austenite (EA) decreased by 8 GPa. It was shown that stress-induced martensite aging strongly affects the functional and viscoelastic properties of material and can be used to control them.

Studies on Dynamic Elastic and Internal Friction Properties of Cu-Cr-Zr-Ti Alloy Between 25 and 650 °C

2015 ◽  
Vol 24 (12) ◽  
pp. 4721-4727 ◽  
Author(s):  
K. Saravanan ◽  
V. M. J. Sharma ◽  
A. K. Asraff ◽  
P. Ramesh Narayanan ◽  
S. C. Sharma ◽  
...  
Keyword(s):  
Internal Friction ◽  
Ti Alloy
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