Young's modulus of TiN, TiC, ZrN and HfN

Torok, E. J.; Perry, A.J.; Chollet, L.; Sproul, William D.

doi:10.1016/0040-6090(87)90167-2

Cited by 255 publications

(34 citation statements)

References 13 publications

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“…This can be attributed to the fact that the data sheet value cited is a bulk value, rather than one obtained via nanoindentation methods. As regards the diffusion-treated substrate, E values are in accordance with the estimated 280-620 GPa range measured for δ-TiN [31].…”

Section: Hardness Testingsupporting

confidence: 68%

Evaluating the effects of PIRAC nitrogen-diffusion treatments on the mechanical performance of Ti–6Al–4V alloy

Bonello

Wilson

Housden

et al. 2014

Materials Science and Engineering: A

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a b s t r a c tPowder Immersion Reaction Assisted Coating (PIRAC) is a relatively simple nitrogen diffusion based process which has been proposed as a technique capable of considerable improvements in the tribological performance of ceramics and metals alike; however, the necessary exposure of the substrate material to high temperatures for several hours may have an adverse effect on the bulk properties of materials such as titanium alloys. The effect of PIRAC treatments on the bulk metallography and mechanical properties of Ti-6Al-4V has been studied. Following PIRAC nitrogen-diffusion treatment, studies using X-ray diffraction and cross-sectional microscopy have shown evidence of the formation of a thin ( $ 1.4 mm) TiN/Ti 2 N layer, together with the presence of some Ti 3 Al intermetallic phase. Semilogarithmic S-N plots show a deleterious effect after PIRAC treatment in terms of material cyclic fatigue strength, particularly at higher treatment temperatures. Samples processed at 800 1C for 4 h however exhibit better fatigue performance than others treated at lower temperatures for longer nitriding times. Fractographic inspection has shown that fatigue cracks originate at (or near) the surface for the untreated Ti-alloy and from the subsurface regions following diffusion treatment, owing to the build-up of compressive stresses in the latter, which hinder crack propagation.

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Section: Hardness Testingsupporting

confidence: 68%

Evaluating the effects of PIRAC nitrogen-diffusion treatments on the mechanical performance of Ti–6Al–4V alloy

Bonello

Wilson

Housden

et al. 2014

Materials Science and Engineering: A

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“…The peak positions were determined by fitting a pseudo-voigt function to the data. The obtained lattice parameters, a w (h k l), were then plotted as a function of sin 2 w. By fitting a linear function to the experimental data the stress was extracted following the procedure outlined by Tengstrand [17] and assuming isotropic elastic constants of E ZrN = 460 GPa and t ZrN = 0.25 [18]. Abadias et al [19,20], have shown that this method provides a reasonable estimation of the residual stresses of epitaxial and textured films for different materials.…”

Section: Methodsmentioning

confidence: 99%

Tuning hardness and fracture resistance of ZrN/Zr0.63Al0.37N nanoscale multilayers by stress-induced transformation toughening

et al. 2015

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Structure and mechanical properties of nanoscale multilayers of ZrN/Zr 0.63 Al 0.37 N grown by reactive magnetron sputtering on MgO (0 0 1) substrates at a temperature of 700°C are investigated as a function of the Zr 0.63 Al 0.37 N layer thickness. The Zr 0.63 Al 0.37 N undergoes in situ chemical segregation into ZrN-rich and AlN-rich domains. The AlN-rich domains undergo transition from cubic to wurtzite crystal structure as a function of Zr 0.63 Al 0.37 N layer thickness. Such structural transformation allows systematic variation of hardness as well as fracture resistance of the films. A maximum fracture resistance is achieved for 2 nm thick Zr 0.63 Al 0.37 N layers where the AlN-rich domains are epitaxially stabilized in the metastable cubic phase. The metastable cubic-AlN phase undergoes stress-induced transformation to wurtzite-AlN when subjected to indentation, which results in the enhanced fracture resistance. A maximum hardness of 34 GPa is obtained for 10 nm thick Zr 0.63 Al 0.37 N layers where the wurtzite-AlN and cubic-ZrN rich domains form semi-coherent interfaces.

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“…This was also observed as the fraction of TiC increased and the amount of amorphous phase decreased in Ti-Si-C films. 51 The value for the ZrAlN film is after annealing at 1400°C 348 GPa, between the values for c-ZrN (460 GPa 53,54 ) and h-AlN (300 GPa 55,56 ).…”

Section: Mechanical Propertiesmentioning

confidence: 99%

Phase transformations in nanocomposite ZrAlN thin films during annealing

et al. 2012

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Nanocomposite Zr 0.52 Al 0.48 N 1.11 thin films consisting of crystalline grains surrounded by an amorphous matrix were deposited using cathodic arc evaporation. The structure evolution after annealing of the films was studied using high-energy x-ray scattering and transmission electron microscopy. The mechanical properties were characterized by nanoindentation on as-deposited and annealed films. After annealing in temperatures of 1050-1400°C, nucleation and grain growth of cubic ZrN takes place in the film. This increases the hardness, which reaches a maximum, while parts of the film remain amorphous. Grain growth of the hexagonal AlN phase occurs above 1300°C.

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Young's modulus of TiN, TiC, ZrN and HfN

Cited by 255 publications

References 13 publications

Evaluating the effects of PIRAC nitrogen-diffusion treatments on the mechanical performance of Ti–6Al–4V alloy

Evaluating the effects of PIRAC nitrogen-diffusion treatments on the mechanical performance of Ti–6Al–4V alloy

Tuning hardness and fracture resistance of ZrN/Zr0.63Al0.37N nanoscale multilayers by stress-induced transformation toughening

Phase transformations in nanocomposite ZrAlN thin films during annealing

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