Elastic properties of in-situ processed Ti–TiB composites measured by impulse excitation of vibration

Atri, Revti; Ravichandran, K.; Jha, Sanjay Kumar

doi:10.1016/s0921-5093(99)00198-7

Cited by 111 publications

(60 citation statements)

References 14 publications

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“…This leads to a value for the specimen modulus of 116.41 GPa that is the Young' modulus of Ti and its alloys . In case of TiB, a value of 371 GPa has been recently reported using indirect measurement method (Atri et al 1999). Multiple tests have been conducted, and the calculated Young's moduli of the sample are shown in Figure 15.…”

Section: Piezoelectric Actuator-based Nanoindentationmentioning

confidence: 92%

Piezoelectric Actuator-Based Nanoindentation

Moon

Morsi

Hong³

2007

International Journal of Optomechatronics

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In this article we report a novel depth-sensing nanoindenter using a lead zirconium titanate (PZT) stack actuator to measure the Young's modulus of Titanium composite. The nanoindenter uses an open-loop positioning control scheme with displacement sensors. In general, the conventional nanoindenters require closed-loop controls for precise loading of the indenter tip. The developed open-loop control scheme compensates for the hysteresis and the creep errors of PZT actuators. We have shown that the overall system structure can be simplified and a high positioning repeatability can be achieved. To verify the system performance, we conducted the indentation tests on titanium matrix composite surfaces. Besides the basic nanoindentation functions, the developed system also has the capability for surface imaging through a scanning function. The pre-indentation scanning capability proved to be a very useful method for positioning the tip in the desired indentation location. Similarly, post-indentation scanning allows for visualization of the indentation marks after the tests.

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Section: Piezoelectric Actuator-based Nanoindentationmentioning

confidence: 92%

Piezoelectric Actuator-Based Nanoindentation

Moon

Morsi

Hong³

2007

International Journal of Optomechatronics

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“…Relating to this, in-situ particle reinforced metal matrix composites (MMCs) exhibiting excellent mechanical properties owing to the formation of stable ceramic reinforcements during processing are reported in the literature including a wide range of matrix materials like titanium, aluminum, copper, nickel or iron along with borides, carbides, oxides and nitrides [5]. Especially with respect to the TMCs, investigations have shown that the most significant strengthening effect is achieved by reinforcement with titanium carbide particles (TiC) and whisker-shaped titanium boride particles (TiB) [6][7][8][9][10][11][12][13][14][15][16]. The high reactivity between titanium, boron and carbon at elevated temperatures enables the in-situ generation of the reinforcing particles through liquid-solid or solid-solid reactions during processing.…”

Section: Introductionmentioning

confidence: 99%

Characterization of In-Situ TiB/TiC Particle-Reinforced Ti-5Al-5Mo-5V-3Cr Matrix Composites Synthesized by Solid-State Reaction with B4C and Graphite through SPS

Grützner

Krüger

Radajewski

et al. 2018

Metals

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Abstract:In-situ TiB/TiC particle-reinforced titanium matrix composites (TMCs) based on a near-β Ti-5Al-5Mo-5V-3Cr alloy (Ti-5553) were synthesized by solid-state reaction with B 4 C and graphite particles during spark plasma sintering (SPS). In this study, investigations were focused on the influence of the molar TiB:TiC ratio on the mechanical properties of the composites. With respect to the adjustment of the molar TiB:TiC ratio, the formation of stoichiometric TiC or nonstoichiometric TiC y was considered as the literature provides conflicting information in this respect. Furthermore, the solid-state reaction behavior influenced by the matrix alloying elements is discussed in comparison to a pure titanium matrix. The hardness, compressive strength and bending strength of the TMCs were improved successfully due to the TiB and TiC particles maintaining acceptable levels of ductility. However, X-ray diffraction experiments revealed that for the adjustment of the molar TiB:TiC ratio, the stoichiometry of the TiC y particles formed must be considered as nonstoichiometric TiC 0.5 resulted from the solid-state reaction of carbon and titanium. Compared to TMCs with pure titanium matrices, more sluggish solid-state reaction kinetics were observed. This was attributed to the matrix alloying elements molybdenum, vanadium and chromium, which formed solid solutions within the reinforcing particles.

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“…The sample can be excited to vibrate at the resonant frequency either by a driver that continuously varies the frequency of the output signal or by a mechanical impact. Because of the characteristics of instantaneity, easiness, repeatability and non-destructiveness, resonant methods have become one of the mainstream techniques for modulus measurement [2][3][4][5][6][7][8] . Recently, optical techniques based resonant methods have been developed for measuring mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

System implementation of self-mixing interferometry technique-based measurement on Young's modulus

Lin

Liu

et al. 2014

SPIE Proceedings

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. (2014). System implementation of self-mixing interferometry technique-based measurement on Young's modulus. Proceedings of SPIE: Optical Metrology and Inspection for Industrial Applications III (pp. 92760K-1-92760K-8). United States: SPIE-International Society for Optical Engineering. System implementation of self-mixing interferometry technique-based measurement on Young' s modulus AbstractYoung's modulus (denoted by E) is an intrinsic and valuable quantity for appropriate estimation of material performance. E can be obtained from the resonant frequency from the vibration of the tested material sample excited by the external forces. In this paper, we present a system design for determining the parameter by using an optical feedback self-mixing interferometry (OFSMI) system. An OFSMI system consists of a laser diode (LD), a micro-lens and an external target. The material sample to be tested is used as the external target. The vibration of the sample causes the variation of the length of the external cavity, and then causes a modulated laser power of the LD. The modulation contains the vibration information of the tested samples. The OFSMI system can achieve high measurement accuracy with an extremely simple and inexpensive set-up, thus can be thought as a good candidate for the evaluation of material properties. The system design in this work includes the mechanical part for holding and exciting the tested samples and the optical part for picking up the vibration information from the samples. In order to accurately determinate E, the exclusive supporting system is used for holding the material sample of specific dimension. The complex waveform of the LD output power is studied and simulated by using our proposed system model. The proposed method is verified by simulation and experiments, and satisfied accuracy of the experiments is achieved. ABSTRACTYoung's modulus (denoted by E) is an intrinsic and valuable quantity for appropriate estimation of material performance. E can be obtained from the resonant frequency from the vibration of the tested material sample excited by the external forces. In this paper, we present a system design for determining the parameter by using an optical feedback self-mixing interferometry (OFSMI) system. An OFSMI system consists of a laser diode (LD), a micro-lens and an external target.The material sample to be tested is used as the external target. The vibration of the sample causes the variation of the length of the external cavity, and then causes a modulated laser power of the LD. The modulation contains the vibration information of the tested samples. The OFSMI system can achieve high measurement accuracy with an extremely simple and inexpensive set-up, thus can be thought as a good candidate for the evaluation of material properties. The system design in this work includes the mechanical part for holding and exciting the tested samples and the optical part for picking up the vibration information from the samples. In order to accurately determinate E, the exclusive support...

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Elastic properties of in-situ processed Ti–TiB composites measured by impulse excitation of vibration

Cited by 111 publications

References 14 publications

Piezoelectric Actuator-Based Nanoindentation

Piezoelectric Actuator-Based Nanoindentation

Characterization of In-Situ TiB/TiC Particle-Reinforced Ti-5Al-5Mo-5V-3Cr Matrix Composites Synthesized by Solid-State Reaction with B4C and Graphite through SPS

System implementation of self-mixing interferometry technique-based measurement on Young's modulus

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