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Journal articles on the topic 'Ti2Ni'

Author: Grafiati
Published: 4 June 2021
Last updated: 17 February 2022

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1

Xu, Xiao Jing, Xin Lin, Jing Chen, Fei He, and Wei Dong Huang. "Laser Rapid Forming of Ti-Ni Functionally Graded Alloy." Materials Science Forum 561-565 (October 2007): 227–30. http://dx.doi.org/10.4028/www.scientific.net/msf.561-565.227.

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Ti-Ni based functionally graded alloy is a kind of the promising material, which has potential to be used in aero engines. Using laser rapid forming, a Ti-Ni graded alloy with a continuous compositional gradient from pure Ti to Ti-50wt.%Ni were fabricated. On comparison with the graded alloy, a series of homogenous deposits with the typical composition between pure Ti to Ti-50wt.%Ni were also laser rapid formed. The phase evolution along the compositional gradient direction in the graded alloy is: α+β→β+Ti2Ni →(TiNi +Ti2Ni)+ TiNi; and the phase evolution in the corresponding compositional homo
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2

WANG, ZHENXIA, HAIRUI WU, NAIMING LIN, XIAOHONG YAO, ZHIYONG HE, and XIAOPING LIU. "HIGH-TEMPERATURE TRIBOLOGICAL BEHAVIORS OF TiNi/Ti2Ni ALLOYED LAYER ON SURFACE OF Ti6Al4V ALLOY." Surface Review and Letters 24, no. 03 (2017): 1750028. http://dx.doi.org/10.1142/s0218625x17500287.

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Plasma surface alloying (PSA) technique was employed with nickel as incident ions to prepare the TiNi/Ti2Ni alloyed layer on surface of Ti6Al4V. High-temperature friction and wear performance of TiNi/Ti2Ni alloyed layer and the Ti6Al4V substrate were evaluated at 500[Formula: see text]C. The results indicated that the TiNi/Ti2Ni alloyed layer exhibited superior high-temperature wear performance. The variations of friction coefficient were the same rule but wear rate was lower compared to Ti6Al4V substrate. The wear mechanism of TiNi/Ti2Ni alloyed layer was mainly slight abrasion and the Ti6Al4
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3

Yang, Rui Song, Ming Tian Li, Xue Jun Cui, Chun Hai Liu, and Yong Zhong Jin. "The Martensitic Transformation Behavior of the TiNi in TiNi/Ti2Ni Composite Synthesized in Molten Salts." Advanced Materials Research 496 (March 2012): 370–73. http://dx.doi.org/10.4028/www.scientific.net/amr.496.370.

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In this paper the TiNi/Ti2Ni composite powders has been synthesized by the chemical reaction between titanium and nickel powders in high temperature molten salts. Results of the differential scanning calorimetry (DSC) confirmed the reverse martensitic transformation of the prepared TiNi powder in the TiNi/Ti2Ni composite powders. The backscatter electron images of the scanning microscopy (SEM) of the end-products before washing by distilled water showed that the synthesized TiNi/Ti2Ni composite particles were captured by the molten salts, which revealed the mechanism of the chemical reaction i
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4

ZHANG, Z., and K. H. KUO. "QUASI-CRYSTALLINE TO CRYSTALLINE TRANSFORMATION IN (Ti1−xVx)2Ni ALLOYS." Modern Physics Letters B 01, no. 03 (1987): 89–96. http://dx.doi.org/10.1142/s0217984987000132.

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The transformation of quasicrystal in (Ti1−xVx)2Ni alloys, x=0.0–0.3, to the equilibrium Ti2Ni and TiNi phases on heating in-situ in an electron microscope has been studied. Twins occurred frequently in the fcc Ti2Ni across {111} planes and fivefold twins sometimes can be obtained. The electron diffraction patterns of fivefold twins and quasicrystal are similar but distinctly different. A parallel orientation relationship existed between the fcc Ti2Ni and the ordered bcc TiNi.
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5

Guedes, Anibal, Filomena Viana, Ana Maria Pires Pinto та Manuel F. Vieira. "Diffusion Brazing of a γ-TiAl Alloy Using Tini 67: Microstructural Evolution of the Interface". Materials Science Forum 587-588 (червень 2008): 425–29. http://dx.doi.org/10.4028/www.scientific.net/msf.587-588.425.

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A detail study focussing the microstructural evolution of the interfacial zone in the course of the processing of Ti-47Al-2Cr-2Nb joints using Tini 67 as filler alloy was carried out in this investigation. Experiments, aiming the understanding of the mechanisms that promote the melting of the braze alloy, were performed below the solidus temperature of the filler, at 750 and 900°C. Diffusion brazed samples were joined at 1000 and 1100°C, with no dwelling stage and subsequently quenched in water in order to frozen the microstructure formed at the bonding temperature. The interfaces were analyse
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6

Li, Weiya, and Chunwang Zhao. "Microstructure and Phase Transformation Analysis of Ni50−xTi50Lax Shape Memory Alloys." Crystals 8, no. 9 (2018): 345. http://dx.doi.org/10.3390/cryst8090345.

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The microstructure and martensitic transformation behavior of Ni50−xTi50Lax (x = 0.1, 0.3, 0.5, 0.7) shape memory alloys were investigated experimentally. Results show that the microstructure of Ni50−xTi50Lax alloys consists of a near-equiatomic TiNi matrix, LaNi precipitates, and Ti2Ni precipitates. With increasing La content, the amounts of LaNi and Ti2Ni precipitates demonstrate an increasing tendency. The martensitic transformation start temperature increases gradually with increasing La content. The Ni content is mainly responsible for the change in martensite transformation behavior in N
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7

Artyukhova, N. V., Yu F. Yasenchuk, K. V. Almaeva, A. S. Garin, V. A. Novikov, and V. E. Gunther. "Distinctive Features of the Phase Composition of Porous TiNi-based Alloys Obtained by Reaction and Diffusion Sintering." KnE Materials Science 2, no. 1 (2017): 52. http://dx.doi.org/10.18502/kms.v2i1.780.

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The present article is concerned with questions of reaction and diffusion sintering of porous shape-memory TiNi-based alloys. The comparative analysis of structural features of the porous alloys obtained by diffusion sintering of TiNi powder and reaction sintering of Ti and Ni powders was conducted. It is observed that the main feature of structure of the porous alloys is related to fraction of the TiNi phase which occupies about 90 vol.% at diffusion sintering, and 20÷50 % of the total volume of multiphase alloy for reaction sintering. The mechanisms of the structure formation on the solid ph
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8

Kang, Xiao Yu, Yan Feng Li, Xiang Qian Yin, Hao Feng Xie, and Xu Jun Mi. "The Microstructure and Properties of Ti50Ni47Fe3 and Ti50Ni46.75Fe3Cr0.25 Shape Memory Alloy." Advanced Materials Research 631-632 (January 2013): 326–30. http://dx.doi.org/10.4028/www.scientific.net/amr.631-632.326.

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Comparing with Ti50Ni47Fe3alloys, the influences of Cr on the mechanical and shape memory properties of Ti50Ni47Fe3alloys are investigated by study on phase transformation and microstructure analysis. The results show that Ti50Ni47Fe3and Ti50Ni46.75Fe3Cr0.25shape memory alloys exhibit two-stage martensitic transformation. The transformation temperatures decrease with the addition of Cr. The microstructure of the Ti50Ni47Fe3and Ti50Ni46.75Fe3Cr0.25alloys consists of TiNi matrix, Ti2Ni phase. Fe element prefers to substitute for Ni in the matrix than black particles. Cr all substitute for Ni in
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9

Nagarajan, R., and K. Chattopadhyay. "Intermetallic Ti2Ni/TiNi nanocomposite by rapid solidification." Acta Metallurgica et Materialia 42, no. 3 (1994): 947–58. http://dx.doi.org/10.1016/0956-7151(94)90289-5.

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10

Stemmer, Susanne, Gerd Duscher, Christina Scheu, Arthur H. Heuer, and Manfred Rühle. "The reaction between a TiNi shape memory thin film and silicon." Journal of Materials Research 12, no. 7 (1997): 1734–40. http://dx.doi.org/10.1557/jmr.1997.0239.

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The reaction between shape-memory TiNi thin films and silicon has been characterized by conventional, analytical, and high-resolution transmission electron microscopy. A reaction layer is formed during the 525 °C post-deposition crystallization anneal of the sputter-deposited TiNi, and consists of several phases: Ti2Ni, a nickel silicide, and a ternary titanium nickel silicide. The mechanism for the interlayer formation is discussed.
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11

Zhou, Lei, Li Jing Zheng, and Hu Zhang. "Effect of Heating Temperature on Microstructure of Directionally Solidified Ni-43Ti-7Al Alloy." Materials Science Forum 898 (June 2017): 552–60. http://dx.doi.org/10.4028/www.scientific.net/msf.898.552.

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By liquid metal cooling (LMC) process, the Ni-43Ti-7Al (at.%) alloy has been directionally solidified (DS) at different heating temperatures (1450°C, 1550°C, 1650°C) and a constant withdrawal rate of 100μm/s. The results showed that anomalous eutectic structures which consisted of Ti2Ni and TiNi phases were formed at the grain boundaries of as-cast sample and similar structures were also observed in the intercellular regions of DS samples. However, the microstructure changed from the equiaxial structure to the cellular structure due to the axial thermal gradients imposed. After DS, the NiTi an
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12

Szwed, B., and M. Konieczny. "Microstructure and Mechanical Properties of Joints of Titanium with Stainless Steel Performed using Nickel Filler." Archives of Metallurgy and Materials 61, no. 2 (2016): 997–1001. http://dx.doi.org/10.1515/amm-2016-0170.

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AbstractDiffusion brazing was performed between titanium (Grade 2) and stainless steel (X5CrNi18-10) using as a filler a nickel foil at the temperatures of 850, 900, 950 and 1000°C. The microstructure was investigated using light microscopy and scanning electron microscopy equipped with an energy dispersive X-ray system (EDS). The structure of the joints on the titanium side was composed of the eutectoid mixture αTi+Ti2Ni and layers of intermetallic phases Ti2Ni, TiNi and TiNi3. The stainless steel-nickel interface is free from any reaction layer at 850°C, above this temperature thin layer of
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13

Yang, Rui Song, Ming Tian Li, and Fang Wei Luo. "Reaction Sintering of NiTi-Ti2Ni-TiC under Cubic High Pressure." Advanced Materials Research 143-144 (October 2010): 703–6. http://dx.doi.org/10.4028/www.scientific.net/amr.143-144.703.

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In this paper, NiTi-Ti2Ni-TiC composite powders were first prepared by in-situ reaction in molten salt and then sintered by a cubic high pressure apparatus under 8 GPa to produce bulk composite material at a short time. It was found that the composite was composed of TiC particles embedded in NiTi-Ti2Ni matrix, in which the Ti2Ni encapsulated TiC particles. The martensitic transformation of the NiTi matrix was evidenced by differential scanning calorimetry analysis. The research on the sintering mechanism shows that there may be a reaction like TiC +Ti2Ni 􀃆 Ti2C + NiTi existing under the press
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14

Sheng, Li Yuan, Fang Yang, and Ting Fei Xi. "Characterization on the Precipitates in the Ti-Ni-Al-Zr Alloy during Heat Treatment." Applied Mechanics and Materials 727-728 (January 2015): 103–6. http://dx.doi.org/10.4028/www.scientific.net/amm.727-728.103.

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In the present paper, the Ti-15Ni-6Al-2Zr alloy is fabricated and heat treated at different temperatures. Its microstructure and morphology of Ti2Ni phase are investigated by SEM and TEM. The results reveal that the Ti-15Ni-6Al-2Zr alloy is composed of eutectoid and eutectic microstructure, which possesses fine Ti2Ni fiber in eutectoid region and fine α-Ti phase in eutectic region. With the increase of heat treatment temperature, the amount of α-Ti and Ti2Ni phases decrease gradually. When the heat treatment temperature is higher than 900°C, almost no α-Ti phase is left. The transformation tem
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15

Lin, Qiu Sheng, Ke Song Zhou, Chun Ming Deng, Chang Guang Deng, Zi Qi Kuang, and Wei Zeng. "Cavitation Erosion Resistance of Ti-Ni Intermetallic Coatings Prepared by Low Pressure Plasma Spray Process." Advanced Materials Research 1058 (November 2014): 265–69. http://dx.doi.org/10.4028/www.scientific.net/amr.1058.265.

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In the current work, low pressure plasma spray process (LPPS) was applied to deposit Ti-Ni intermetallic coatings with Ni-clad Ti powder as feedstock. The microstructure and phase transition of LPPS sprayed Ti-Ni coating were investigated. Cavitation erosion resistance was examined using a standard ultrasonic cavitation test. The coating mainly consisted of TiNi phase with a certain amount of Ti2Ni, Ni3Ti phase and a few Ti phase. A few pores concentrated on the boundaries of the sprayed splats. The TiNi coating exhibited excellent cavitation erosion resistance.
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16

Liu, Ai Lian, Nan Nan Mao, Jia Wen Xu, and Wei Cai. "Investigation on Ce Addition on Microstructure and Martensitic Transformation of a Ti51Ni49 Shape Memory Alloy." Materials Science Forum 852 (April 2016): 28–32. http://dx.doi.org/10.4028/www.scientific.net/msf.852.28.

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The effect of rare earth element Ce addition on the microstructure and martensitic transformation behavior of Ti51Ni49 shape memory alloy was investigated by scanning electronic microscope (SEM), X-ray diffraction (XRD) and differential scanning calorimetry (DSC). The results show that the microstructure of TiNiCe ternary alloy consists of Ti2Ni phase, CeNi phase and the matrix. One-step martensitic transformation is observed in quenched TiNiCe ternary alloys, which is the same as that in quenched TiNi binary alloys. The martensitic transformation temperatures of Ti-rich TiNi alloy hardly incr
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17

Ur Rehman, Izaz, and Tae-Hyun Nam. "Effect of Nitrogen Addition on TiNi Shape Memory Alloys." Science of Advanced Materials 12, no. 9 (2020): 1403–8. http://dx.doi.org/10.1166/sam.2020.3806.

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In present paper we will show how nitrogen effects microstructures, transformation temperatures, and mechanical properties of equiatomic Ti50–Ni50 and Ti-rich Ti51–Ni49 binary shape memory alloys. 0.5 at.% of nitrogen was added to prepare Ti50–Ni49.5–N0.5, and Ti51–Ni48.5–N0.5 (at.%) alloys by arc-melting. Microstructures were investigated by scanning electron microscope (SEM), phase constitutions were investigated by X-ray diffraction (XRD), transformation temperatures were investigated by differential scanning calorimeter (DSC) and mechanical properties were tested by tensile tests. Solution
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18

Nam, Tae-hyun, Cheol-am Yu, Jung-min Nam, Hyun-gon Kim, and Yeon-wook Kim. "Shape Memory Characteristics and Superelasticity of Ti-Ni-Cu Alloy Ribbons with Nano Ti2Ni Particles." Journal of Nanoscience and Nanotechnology 8, no. 2 (2008): 722–27. http://dx.doi.org/10.1166/jnn.2008.d260.

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Microstructures and deformation behaviour of Ti-45Ni-5Cu and Ti-46Ni-5Cu alloy ribbons prepared by melt spinning were investigated by transmission electron microscopy, thermal cycling tests under constant load and tensile tests. Spherical Ti2Ni particles coherent with the B2 parent phase were observed in the alloy ribbons when the melt spinning temperature was higher than 1773 K. Average size of Ti2Ni particles in the ribbons obtained at 1873 K was 8 nm, which was smaller than that (10 nm) in the ribbons obtained at 1773 K. Volume fraction of Ti2Ni phase in the ribbons obtained at 1873 K was 4
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19

Yang, Sheng Nan, and Su Yuan Yang. "Research on Mechanical Properties of TiNi Shape Memory Alloy Wires Reinforced Al Matrix Composite Material." Advanced Materials Research 1120-1121 (July 2015): 502–6. http://dx.doi.org/10.4028/www.scientific.net/amr.1120-1121.502.

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TiNi/Al shape memory alloy (SMA) composite was fabricated by a vacuum hot-pressing method to investigate the phase , microstructure and mechanical properties. Phase analysis was conducted by XRD . Interface bonding between TiNi wire and Al matrix was observed by using SEM and EDS. Quasi-static and dynamic compressive mechanical properties of the composite were investigated by using electronic universal testing machine (INSTRON5985) and Split-Hopkinson Pressure Bar (SHPB),respectively. The experiment results show that new phases Ni4Ti3 and Ti2Ni precipitined from TiNi wire. Interfacial reaction
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20

Li, Peiyou, Yongshan Wang, Fanying Meng, Le Cao, and Zhirong He. "Effect of Heat Treatment Temperature on Martensitic Transformation and Superelasticity of the Ti49Ni51 Shape Memory Alloy." Materials 12, no. 16 (2019): 2539. http://dx.doi.org/10.3390/ma12162539.

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The martensitic transformation and superelasticity of Ti49Ni51 shape memory alloy heat-treatment at different temperatures were investigated. The experimental results show that the microstructures of as-cast and heat-treated (723 K) Ni-rich Ti49Ni51 samples prepared by rapidly-solidified technology are composed of B2 TiNi phase, and Ti3Ni4 and Ti2Ni phases; the microstructures of heat-treated Ti49Ni51 samples at 773 and 823 K are composed of B2 TiNi phase, and of B2 TiNi and Ti2Ni phases, respectively. The martensitic transformation of as-cast Ti49Ni51 alloy is three-stage, A→R→M1 and R→M2 tra
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21

Zhang, Xiao Li, Ruo Lei Li, Chun Yan Yang, Xiao Fan Chen, and Hu Zhang. "Influence of Heating Temperature on Microstructure Characteristics of Directionally Solidified Ni-45Ti-5Al Alloy." Advanced Materials Research 581-582 (October 2012): 414–17. http://dx.doi.org/10.4028/www.scientific.net/amr.581-582.414.

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The microstructure evolution of Ni-45Ti-5Al(atomic fraction, %) alloys prepared by directional solidification with liquid-metal-cooling at different temperatures of 1450°C, 1550°C and 1650°C was investigated. The results showed that the macrostructure in directional solidification growth region was obvious columnar grains. The microstructure was cellular growth structure, and composed of primary NiTi matrix and Ti2Ni precipitates. The preferred orientation of NiTi and Ti2Ni were respectively [100] and [111] direction. It was found that aluminum was dissolved in both NiTi and Ti2Ni phase. The A
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22

Wang, Yuan. "Effect of the bionic morphologies on bio-tribological properties of surface-modified layers on Ti6Al4V with Ni+/N+ implantation." Industrial Lubrication and Tribology 70, no. 2 (2018): 325–30. http://dx.doi.org/10.1108/ilt-08-2017-0233.

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Purpose The main purpose of this study is to enhance bio-tribological properties of Ti6Al4V and the surface-modified layers of Ni+/N+-implanted Ti6Al4V alloy, bionic texturing was done on Ti6Al4V surface. Design/methodology/approach The phase compositions and nano-hardness of the surface-modified layers of the samples have been analyzed by X-ray diffractometer and Nano Indenter, respectively. This paper has conducted bio-tribological tests under artificial saliva, sodium hyalurate and sodium hyalurate +γ-globulin by micro tribology multifunction tribometer, with ZrO2 ball/modified layer as the
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23

Abdulmenova, Ekaterina, and Sergey Kulkov. "Hydrogen and its effect on the grinding of Ti-Ni powder." Metal Working and Material Science 23, no. 3 (2021): 100–111. http://dx.doi.org/10.17212/1994-6309-2021-23.3-100-111.

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Introduction. Industrial nickel-titanium alloy PN55T45 closed to the equiatomic composition is widely used for the manufacture of products by powder metallurgy. To achieve high physical and mechanical properties of the material obtained by this method, it is necessary to use fine powders, which can be obtained by implementing high-intensity grinding in a planetary ball mill. However, during such treatment, contamination, powder oxidation and particle aggregation, etc. are possible. To solve this problem, preliminary hydrogenation is proposed for subsequent grinding in a planetary ball mill. Th
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24

Jia, C., Z. P. Xiong, Z. Liu, and XW Cheng. "Structural designation and mechanical properties of TiNi/Ti2Ni laminated composites." Journal of Physics: Conference Series 1507 (April 2020): 062010. http://dx.doi.org/10.1088/1742-6596/1507/6/062010.

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25

Liang, Jing, Chao Wang, Sui Yuan Chen, Chang Sheng Liu, and Cheng Yu Yang. "Microstructure of Laser In Situ Synthesized TiBx+TiC Reinforced Composite Coatings." Advanced Materials Research 1061-1062 (December 2014): 526–29. http://dx.doi.org/10.4028/www.scientific.net/amr.1061-1062.526.

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B4C/TiNi mixed powders with different composition (10B4C+90TiNi and 20B4C+80TiNi in wt. %) prepasted on Ti-6Al-4V substrates were scanned by a FL-Dlight02-3000W semiconductor laser to obtain TiBx+TiC reinforced graded composite coatings. The influences of the processing parameters on the microstructure of the coatings were studied. Optimal processing parameters were obtained with laser power (P) 1700W/1900W, laser scanning speed (V) 6.67mm/s and defocus length 310mm. The microstructures and phases of the coatings were analyzed with OM, SEM and XRD respectively. Graded composite coatings with i
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26

Wierzba, B., D. Serafin, W. J. Nowak, P. Wierzba, A. Ciecko, and A. Mazurkow. "Diffusion coefficients in multiphase Ni80Cr20-Ti system." Journal of Mining and Metallurgy, Section B: Metallurgy 57, no. 1 (2021): 137–44. http://dx.doi.org/10.2298/jmmb200311008w.

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In this paper, the reactive diffusion in Ni80C20r?Ti ternary system is discussed at 1173K. The diffusion couple was prepared and annealed for 100 h. The two intermetallic phases and two two-phase zones occurred, namely: Ti2Ni, TiNi, TiNi+Cr, and TiNi3+Cr. Based on the experimental results (molar fractions, thicknesses of the intermetallic phases), the intrinsic diffusion coefficients of all components in each phase were numerically approximated. The Wagner method was used in the pure intermetallic phases. In the two phase zones the approximation was based on the generalized Darken and Wagner m
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27

Li, Bing-Yun, Li-Jian Rong, Yi-Yi Li, and V. E. Gjunter. "Fabrication of cellular NiTi intermetallic compounds." Journal of Materials Research 15, no. 1 (2000): 10–13. http://dx.doi.org/10.1557/jmr.2000.0004.

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Self-propagating high-temperature synthesis (SHS) has been successfully developed for the fabrication of cellular NiTi intermetallic compounds, which have an open cellular structure with about 60 vol% porosity and more than 95% open-porosity ratio. The SHS reactions lead to the formation of TiNi, Ti2Ni, Ni3Ti, and Ni4Ti3 intermetallics. The SHS process can be controlled by regulating the preheating temperature, which has effects on the phase amount and the shape as well as macrodistribution of pores in the products.
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28

Marchenko, E. S., G. A. Baigonakova, A. L. Chernysheva, et al. "The Features of Martensite Transformation in the (TiNiMo)Nb Alloys Under Loading." KnE Materials Science 2, no. 1 (2017): 10. http://dx.doi.org/10.18502/kms.v2i1.775.

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Researches of multiplecomponent (TiNiMo)Nb alloys with 0.5, 1 and 1.5 at.% Nb. Experimental dependences of strain accumulation and recovery at multiple SME have showed a hysteresis behavior in all the studying alloys at temperature changing. A growth of hysteresis characteristics with an increase in Nb content was established. The quantities microanalysis let to identify the following structure of (TiNiMo)Nb: matrix on the base of intermetallic compound В2 – TiNi; eutectic, NiTiNb and Ti2Ni phases. In the study of structure revealed that NiTiNb particles are local obstacles that cause the incr
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29

Balcerzak, M., and M. Jurczyk. "Effect Of Hot Pressing On The Electrochemical Properties Of Ti-Ni Alloy." Archives of Metallurgy and Materials 60, no. 2 (2015): 1335–40. http://dx.doi.org/10.1515/amm-2015-0126.

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Abstract Ti2Ni alloy pellets were produced by mechanical alloying and hot pressing at 750°C for 0.5 h in vacuum. X-ray diffraction analysis showed that, after 8 h of milling, a starting mixture of elements mostly decomposed into an amorphous phase. Obtained powders and flakes have cleavage fracture morphology with huge number of dimples with different sizes. Hot pressing of materials caused formation of Ti2Ni main phase. Porosity of pellets strongly depended on size of agglomerates and pressure of pressing. Ti2Ni pellets were used as negative electrodes for Ni-MHx batteries. Maximum measured d
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30

Kristianová, Eva, and Pavel Novák. "Composite Materials NiTi-Ti2Ni." Manufacturing Technology 16, no. 5 (2016): 961–65. http://dx.doi.org/10.21062/ujep/x.2016/a/1213-2489/mt/16/5/961.

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31

Фокин, В. Н., Э. Э. Фокина, И. И. Коробов та Б. П. Тарасов. "Гидрирование интерметаллического соединения Ti2Ni". Журнал неорганической химии 59, № 10 (2014): 1308–11. http://dx.doi.org/10.7868/s0044457x14100079.

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32

GAO, Fei, and Hua-Ming WANG. "Abrasive wear property of laser melting/deposited Ti2Ni/TiNi intermetallic alloy." Transactions of Nonferrous Metals Society of China 17, no. 6 (2007): 1358–62. http://dx.doi.org/10.1016/s1003-6326(07)60277-5.

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33

Gao, F., and H. M. Wang. "Effect of TiNi in dry sliding wear of laser melt deposited Ti2Ni/TiNi alloys." Materials Characterization 59, no. 9 (2008): 1349–54. http://dx.doi.org/10.1016/j.matchar.2008.05.007.

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34

Kao, Tsay, Wang, and Shiue. "Vacuum Brazing Ti–15–3 with a TiNiNb Braze Alloy." Metals 9, no. 10 (2019): 1085. http://dx.doi.org/10.3390/met9101085.

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Among all types of brazing fillers, Ti-based fillers show satisfactory joint strengths in brazing titanium alloys. However, the major concern in using such fillers is the formation of Cu/Ni/Ti intermetallic compound(s) in the joint. In this study, a Ti–15–3 alloy was vacuum brazed with a clad Ti–35Ni–25Nb foil. The brazed zone consisted of a Ti2Ni intermetallic compound in a (β-Ti,Nb)-rich matrix for specimen brazing at 1000 °C/600 s. Raising brazing temperature and time resulted in the Ti2Ni dissolving into the (β-Ti,Nb)-rich matrix. For the specimen brazing at 1100 °C/600s, Ti2Ni could only
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35

Inoue, Hirofumi, K. Asao, Masaaki Ishio, and Takayuki Takasugi. "Texture Evolution during Diffusional Heat Treatment from Roll-Bonded Ti/Ni Laminates to TiNi Shape Memory Alloy Sheets." Materials Science Forum 539-543 (March 2007): 3442–47. http://dx.doi.org/10.4028/www.scientific.net/msf.539-543.3442.

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TiNi shape memory alloy thin sheets were produced from titanium and nickel metal sheets by a new processing consisting of repetitive roll-bonding and diffusional heat treatment. TiNi sheets after heat treatment at a relatively low temperature for a long time exhibited fairly isotropic and high shape-recoverable strain, because a near {111} B2-phase texture such as {223}<110> and {332}<113> was developed through reactive diffusion during heat treatment. In the early stage of reactive diffusion, intermetallic layers of Ti2Ni, TiNi and Ni3Ti were formed at once at the Ti/Ni interfaces
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36

Liang, Jing, Xiao Meng Tan, Cheng Jin Wang, Sui Yuan Chen, Chang Sheng Liu, and Jin Cheng Qin. "Microstructure on Laser In Situ Deposit of TiBx/TiC ReinforcedComposite Coatings." Materials Science Forum 849 (March 2016): 665–70. http://dx.doi.org/10.4028/www.scientific.net/msf.849.665.

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In situ synthesized TiBx/TiC reinforced composite coatings were prepared on Ti-6Al-4V substrate by laser in situ deposition using 10B4C-18TiNi-72Ti-6Al-4V (wt. %) powder blends as the feedstock materials. The microstructural analysis of the composites was performed using scanning electron microscope, and phase analysis was done with X-ray diffraction. The results showed that the composite coatings contained long needle TiB, irregular block TiB2 and disperse particles/dendrites TiC, the thick rod phase which was a inlay structure consisted of TiB2 and TiC. These composite reinforced phases were
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Fokin, V. N., E. E. Fokina, I. I. Korobov, and B. P. Tarasov. "Hydriding of intermetallic compound Ti2Ni." Russian Journal of Inorganic Chemistry 59, no. 10 (2014): 1073–76. http://dx.doi.org/10.1134/s0036023614100076.

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38

Yue, Gui-Lin, Tai-Cheng Chen, Ren-Kae Shiue, and Leu-Wen Tsay. "Phase Transformation of a Ti-15Mo-5Zr-3Al Brazed Joint Using Clad Ti-15Cu-15Ni Filler." Metals 10, no. 1 (2020): 83. http://dx.doi.org/10.3390/met10010083.

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Furnace brazing of Ti-15Mo-5Zr-3Al (Ti-15-5-3, β-Ti) alloy using clad Ti-15Cu-15Ni foil as the filler in a high vacuum has been carried out. In the brazed joints, the chemical compositions of distinct phases were quantified by electron probe micro-analyzer (EPMA), and the phase structures were identified by electron backscatter diffraction (EBSD). The as-brazed joint composed of α-Ti, retained β-Ti, Ti2Ni, and Ti2Cu. The embrittlement of the brazed joint was correlated mainly with the formation of intermetallics, especially cellular Ti2Ni dendrites in the brazed zone. It was noticed that the m
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Yu, Jing Yuan, and Qiang Li. "Study on Effect of Sintering Temperature on Microstructure and Compressive Property of Porous NiTi Alloys." Advanced Materials Research 299-300 (July 2011): 480–83. http://dx.doi.org/10.4028/www.scientific.net/amr.299-300.480.

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Porous NiTi alloys were prepared by powder metallurgy method using NH4HCO3as space-holder. The effect of sintering temperature on pore characteristic, phase composition and compressive property of porous NiTi alloys was studied by XRD, SEM, EDS and a universal testing machine. The results show with the increase of sintering temperature the porosity of porous NiTi alloys first increases and then decreases, but the content of NiTi phase, compressive strength and modulous of sintered products continuously increase. When sintered at 980°C for 2h, the porous NiTi alloys have higher porosity of 53.6
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40

Zhang, Youjing, Xingwang Cheng, and Hongnian Cai. "Fabrication, characterization and tensile property of a novel Ti2Ni/TiNi micro-laminated composite." Materials & Design 92 (February 2016): 486–93. http://dx.doi.org/10.1016/j.matdes.2015.12.014.

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41

Zheng, H. X., J. K. Yu, S. C. Xue, and W. Wang. "On formation mechanism of Ti2Ni particles in melt-spun TiNi shape memory ribbons." Materials Research Innovations 18, sup4 (2014): S4–574—S4–577. http://dx.doi.org/10.1179/1432891714z.000000000746.

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42

Gao, F., and H. M. Wang. "Dry sliding wear property of a laser melting/deposited Ti2Ni/TiNi intermetallic alloy." Intermetallics 16, no. 2 (2008): 202–8. http://dx.doi.org/10.1016/j.intermet.2007.09.008.

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43

Balcerzak, M., and M. Jurczyk. "Influence of Gaseous Activation on Hydrogen Sorption Properties of TiNi and Ti2Ni Alloys." Journal of Materials Engineering and Performance 24, no. 4 (2015): 1710–17. http://dx.doi.org/10.1007/s11665-015-1445-x.

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Li, Qiang, Jing Yuan Yu, and Xu Dong Sun. "Study on Characteristic and Compressive Property of Porous NiTi Alloys Fabricated by Thermal Explosion Method." Advanced Materials Research 160-162 (November 2010): 644–49. http://dx.doi.org/10.4028/www.scientific.net/amr.160-162.644.

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Porous NiTi shape memory alloys were fabricated by thermal explosion method using different Ti and Ni powder as initial materials. The effect of process parameters including heating rate, and particle size of Ti on pore characteristic and phase composition was analyzed. Microstructure, phase composition, and mechanical properties were studied by SEM, XRD, and compression test, respectively. The mechanism of thermal explosion reaction was studied. The results show higher heating rate and smaller Ti particle size result in higher porosity and bigger pores. The thermal explosion reaction starts w
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45

Kollerov, Mikhail, Elena Lukina, Dmitiy Gusev, Peter Mason, and Paul Wagstaff. "Influence of the Structure on the Strain-Controlled Fatigue of Nitinol." Materials Science Forum 738-739 (January 2013): 316–20. http://dx.doi.org/10.4028/www.scientific.net/msf.738-739.316.

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The influence of increased dislocation density; dispersity of Ni-rich (Ti3Ni4and Ti2Ni3) particles and volume fraction of Ti-rich (Ti2Ni) particles on the low-cycle (high amplitude) and high-cycle (low amplitude) fatigue resistance of nitinol has been considered in this paper. It was revealed that the fatigue resistance of nitinol in low-cycle conditions may be improved by increasing the part of deformation which is realized by martensitic mechanism. This part may be estimated by measuring εcr, which can reflect the influence of the structure parameter both on σMand σslip. It was found that in
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Xu, Ji Lin, Xiao Fei Jin, Jun Ming Luo, and Ai Hui Liu. "Effect of NH4HCO3 Contents on the Microstructure of the Microwave Sintered Porous NiTi Alloys." Applied Mechanics and Materials 496-500 (January 2014): 264–67. http://dx.doi.org/10.4028/www.scientific.net/amm.496-500.264.

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In this paper, the porous NiTi alloys were prepared by microwave sintering, and the effects of NH4HCO3contents on the microstructure of the porous NiTi alloys were studied. The microstructure of the porous NiTi alloys was investigated by optical microscopy, Archimedes drainage method, surface roughmeter and X-ray diffraction. The results showed that the porous NiTi alloys were mainly composed of NiTi, Ni3Ti, Ti2Ni and Ni, and the diffraction peaks of the non-equiatomic phases (Ni3Ti, Ti2Ni and Ni) increased with increasing the NH4HCO3contents. At the same time, the porosity, pore size and surf
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Li, Qiang, Jing Yuan Yu, and Xu Dong Sun. "Study on Preparation and Anodic Oxidation of Gradient Porous NiTi Alloy." Advanced Materials Research 430-432 (January 2012): 1373–77. http://dx.doi.org/10.4028/www.scientific.net/amr.430-432.1373.

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Gradient porous NiTi alloys were prepared by powder metallurgy method using NH4HCO3 as space-holder and modified by direct current-pulse anodic oxidation technology in low temperature. Pore characteristic and phase composition of gradient porous NiTi alloys were studied. Microstructure, composition, anti-corrosion and Ni ion release behavior of surface film were observed. The results show the porosity of porous NiTi alloys decreases from 53.2% to 42.8%, when the content of NH4HCO3 varying from uniformity to gradient distribution. The sintered gradient porous NiTi alloys composes with TiNi, Ti2
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Kim, K. B., P. J. Warren, B. Cantor, and J. Eckert. "Enhanced thermal stability of the devitrified nanoscale icosahedral phase in novel multicomponent amorphous alloys." Journal of Materials Research 21, no. 4 (2006): 823–31. http://dx.doi.org/10.1557/jmr.2006.0103.

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In this paper, details are given for the structural evolution of (Ti33Zr33Hf33)70(Ni50Cu50)20Al10, (Ti25Zr25Hf25Nb25)70(Ni50Cu50)20Al10, and (Ti33Zr33Hf33)70(Ni33Cu33Ag33)20Al10 amorphous alloys, part of wider program of alloy development by equiatomic substitution. All three alloys initially crystallize by forming a nanoscale icosahedral phase. However, at higher temperatures, their decomposition sequences differ significantly. The nanoscale icosahedral phase in the (Ti33Zr33Hf33)70(Ni50Cu50)20Al10 alloy decomposes into a mixture of Zr2Cu-type and icosahedral phases. This icosahedral phase st
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Hu, L. F., J. Li, Y. F. Tao, and Y. H. Lv. "Corrosion behaviors of TiNi/Ti2Ni matrix coatings in the environment rich in Cl ions." Surface and Coatings Technology 311 (February 2017): 295–306. http://dx.doi.org/10.1016/j.surfcoat.2017.01.020.

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Yang, Bing, Zheng Luo, Bin Yuan, Jiangwen Liu, and Yan Gao. "High Damping of Lightweight TiNi-Ti2Ni Shape Memory Composites for Wide Temperature Range Usage." Journal of Materials Engineering and Performance 26, no. 10 (2017): 4970–76. http://dx.doi.org/10.1007/s11665-017-2947-5.

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