Effects of Al content on structure and mechanical properties of hot-rolled ZrTiAlV alloys

Liang, S.X.; Yin, L.X.; Che, Hongwei; Jing, Ran; Zhou, Yulin; Ma, Mingzhen; Liu, R.P.

doi:10.1016/j.matdes.2013.05.065

Cited by 33 publications

(12 citation statements)

References 22 publications

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“…a + b and a + b ? b transformation temperatures of this alloy were determined by differential scanning calorimetry to be 650°C and 760°C, respectively [8]. In order to study the effect of initial grain size on hot deformation behavior, the bars were heat-treated at 850°C and 1050°C for 30 min in a tubular vacuum heat-treatment furnace with a protective argon atmosphere followed by water quenching.…”

Section: Materials and Sample Preparationmentioning

confidence: 99%

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Effect of initial grain size on the hot deformation behavior of 47Zr–45Ti–5Al–3V alloy

Tan

Liu

Duan

et al. 2014

Journal of Nuclear Materials

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Section: Materials and Sample Preparationmentioning

confidence: 99%

“…To broaden the application of Zr alloys in other industries, a series of new ZrTiAlV alloys has been recently developed [6][7][8][9]. These alloys with high strength and good ductility can be used as advanced structural materials.…”

Section: Introductionmentioning

confidence: 99%

Effect of initial grain size on the hot deformation behavior of 47Zr–45Ti–5Al–3V alloy

Tan

Liu

Duan

et al. 2014

Journal of Nuclear Materials

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“…Microscopic structures, such as phase composition, grain size, shape and composition distribution in matrix, greatly influence the mechanical properties of alloys [1][2][3][4][5][6][7]. Grain refinement in solidification process has been presented many advantages, including forming a more homogeneous microstructure and obtaining excellent mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

Influence of beryllium addition on the microstructural evolution and mechanical properties of Zr alloys

Feng

Jiang

Zhou

et al. 2015

Materials & Design (1980-2015)

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“…It was explained that the ω phase decreases the dislocations mobility and increases the internal stresses in a material, supporting the martensitic transformation [109]. Alloying is one of the most common and effective methods to change the stabilisation of the β phase [110,111]. For concentrations of stabilising alloying elements higher than a critical content (Table 2.1), the β phase is retained in a metastable state after quenching.…”

Section: 2mentioning

confidence: 99%

“…The Burgers orientation relationships for the β to α″ transformation are (1 ̅ 10)β//(001)α″ and [111]β// [110]α″ [38]. An illustration of the correspondence between the β phase structure and the α″ martensitic structure is presented in the Fig.…”

Section: Identification Of α″ Phasementioning

confidence: 99%

Mechanical and microstructural characterisation in the processing of biomedical metallic fine tubes

Yao-wu¹

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Fine tube stents are used for maintaining localised flow in stenotic blood vessels. Elasticity and plasticity for expansion, rigidity for resisting bending under force and strength to prevent unexpected failure, are required properties of the tubes from which these stents are formed. Biomedical metastable β titanium alloys have been developed as implant materials for a large number of biomedical applications due to a combination of favourable characteristics, e.g. good biocompatibility, excellent toughness and corrosion resistance. A metastable β alloy, Ti-25Nb-3Mo-3Zr-2Sn, has been developed without toxic alloying elements, which is a promising candidate material for stent applications. Metallic materials used for stents are commonly not biodegradable and implanted in the vessel permanently, which may provoke in-stent restenosis and stent thrombosis. In order to remove the implanted materials after service, biodegradable materials, absorbed by the body slowly, are also a field of research interest. Magnesium alloys have been used in studies for biomedical stent applications as a new biodegradable material. Magnesium stents can reopen the blocked blood vessels temporarily before degrading in physiological environments. In addition to the biodegradable characteristics, their mechanical properties are reasonable. The Mg-3Al-1Zn (AZ31) alloy is the subject of some research on the processing of biomedical magnesium alloys as it is a commonly available commercial alloy. Consequently, the Ti-25Nb-3Mo-3Zr-2Sn alloy and the AZ31 magnesium alloy have been used in this thesis to investigate the evolution of mechanical properties and microstructure in the processing of fine tubes.The deformation mechanisms during cold deformation of metastable β titanium alloys are mainly associated with martensitic phase transformations and mechanical twinning. It has been reported that stress-induced phase transformations and {112}〈111〉, {332}〈113〉 twinning modes may be activated under different stress states in metastable β titanium alloys. They can exhibit varying elasticity, Young's modulus and strain hardening behaviour. Because the martensitic start temperature is below room temperature for most metastable β titanium alloys, the α″ martensitic transformation can easily occur under a small amount of external stress. Mechanical twins were reported to hinder slip and dislocation motion thereby increasing the strain hardening rate. The development of β and α″ texture during processing is another critical influence on the mechanical properties of fine tubes. Therefore, studies on the martensitic transformation, mechanical twins and texture evolution is of significance in order to understand the processing of β titanium fine tubes.ii Magnesium alloys deform through the formation of a large amount of mechanical twins due to the relatively low critical stress to activate twinning in comparison with 〈 + 〉 slip. There are typically two primary mechanical twinning modes for magnesium alloys, {101 ̅ 2} extension twins and {101 ̅ 1} cont...

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Effects of Al content on structure and mechanical properties of hot-rolled ZrTiAlV alloys

Cited by 33 publications

References 22 publications

Effect of initial grain size on the hot deformation behavior of 47Zr–45Ti–5Al–3V alloy

Effect of initial grain size on the hot deformation behavior of 47Zr–45Ti–5Al–3V alloy

Influence of beryllium addition on the microstructural evolution and mechanical properties of Zr alloys

Mechanical and microstructural characterisation in the processing of biomedical metallic fine tubes

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