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Article

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

1
Laboratory for Physics of High-Strength Crystals, Siberian Physical-Technical Institute, Tomsk State University, Lenina Str. 36, 634050 Tomsk, Russia
2
Department of Materials Science & Engineering, Texas A&M University, College Station, TX 77843, USA
*
Author to whom correspondence should be addressed.
Academic Editor: Daixiu Wei
Metals 2021, 11(12), 1890; https://doi.org/10.3390/met11121890
Received: 13 October 2021 / Revised: 15 November 2021 / Accepted: 19 November 2021 / Published: 23 November 2021
(This article belongs to the Special Issue Processing, Microstructure and Mechanical Properties of Alloys)
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. View Full-Text
Keywords: martensitic transformation; NiTiHf; stress-induced martensite aging; two-way shape memory effect martensitic transformation; NiTiHf; stress-induced martensite aging; two-way shape memory effect
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MDPI and ACS Style

Tagiltsev, A.I.; Panchenko, E.Y.; Timofeeva, E.E.; Chumlyakov, Y.I.; Marchenko, E.S.; Karaman, I. The Effect of Subsequent Stress-Induced Martensite Aging on the Viscoelastic Properties of Aged NiTiHf Polycrystals. Metals 2021, 11, 1890. https://doi.org/10.3390/met11121890

AMA Style

Tagiltsev AI, Panchenko EY, Timofeeva EE, Chumlyakov YI, Marchenko ES, Karaman I. The Effect of Subsequent Stress-Induced Martensite Aging on the Viscoelastic Properties of Aged NiTiHf Polycrystals. Metals. 2021; 11(12):1890. https://doi.org/10.3390/met11121890

Chicago/Turabian Style

Tagiltsev, Anton I., Elena Y. Panchenko, Ekaterina E. Timofeeva, Yuriy I. Chumlyakov, Ekaterina S. Marchenko, and Ibrahim Karaman. 2021. "The Effect of Subsequent Stress-Induced Martensite Aging on the Viscoelastic Properties of Aged NiTiHf Polycrystals" Metals 11, no. 12: 1890. https://doi.org/10.3390/met11121890

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