Emission mitigation potential of lightweight intermetallic TiAl components

Lavery, Nicholas; Jarvis, D.J.; Voß, Daniela

doi:10.1016/j.intermet.2010.11.019

Cited by 33 publications

(5 citation statements)

References 7 publications

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“…Due to the low density of titanium aluminides in comparison to Ni-based superalloys, a replacement of these heavy alloys for certain applications in aero and automotive engines is expected to reduce their mass, in particular that of rotating components, leading to a higher efficiency and reduced fuel consumption. [1][2][3][4][5][6] The present study aimed to analyze the microstructural development of a TNM alloy showing a nominal composition of Ti-43.5Al-4Nb-1Mo-0.1B. At room temperature (RT), this alloy consists of mainly g phase (L1 0 structure), a 2 phase (D0 19 structure) and a small amount of b o phase (B2 structure).…”

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confidence: 99%

Grain Growth and β to α Transformation Behavior of a β‐Solidifying TiAl Alloy

et al. 2014

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Advanced intermetallic g-TiAl-based alloys such as multiphase TNM alloys exhibiting a compositional range of Ti-(42-44)Al-(3-5)Nb-(0.1-2)Mo-(0.1-1)B (all compositions are given in at%, unless otherwise indicated) have attracted attention in the automotive and aircraft industries due to their potential as light-weight materials for high temperature-applications. [1][2][3][4][5] In the acronym TNM, T stands for TiAl, N and M stand for T. Klein et al./Morphological Evolution of a b-solidifying TiAl Alloy ADVANCED ENGINEERING MATERIALS 2015, 17, No. 6

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confidence: 99%

Grain Growth and β to α Transformation Behavior of a β‐Solidifying TiAl Alloy

et al. 2014

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“…1 Tilt casting process [36] (a) schematic (b) prototype equipment LEVICAST ¿¼ § [37] Fig. 2 Schematic illustration of LEVICAST technology [37] ³ Þ ´ÔÛ ¨: Aguilar Õ [39] µÜ Þ TiAl Ù½ Î Ñ ¦ ¤¤ ; Lavery Õ [40] À ßÞ ¢ §¢ ¿ ½Ê Ð Õ 4 , £ ×À¹ÙÎ½Ö ℄ª´ Ê TiAl Ù½ Î Ö ℄ª´ Ñ´ ÈÊÎAE ¢ ¶ ª ¼ Õ , ÜÛ Ñ±´ ¼ ; Reitz Õ [41] Ú£¦´ÕÝ ¬Ñ TiAl Ù½ Î Þ À § ÞÑ ß, ÓÉÜ ß ℄ª´ [42] ,…”

Section: ½ ü ½mentioning

confidence: 99%

REVIEW OF THE INVESTMENT CASTING OF TiAI-BASED INTERMETALLIC ALLOYS

Chen¹,

Jia²,

Shulong³

et al. 2013

Acta Metallurgica Sinica

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TiAl-based intermetallic alloys are emerging as a new generation light-weight, high temperature structural materials and possess wide capacities of engineering applications in aeronautics, space and automobile industries. Near-net-shape casting is a commonly used manufacturing method for TiAl-based alloys. In this paper, the evolution of the alloy design and investment casting technology of TiAl-based alloys are reviewed. The prospects of the investment casting of TiAl-based alloys are also represented.

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“…Traditional Ni-based superalloy has high density, low strength and antioxidant properties at high temperature, thus dissatisfying application. With low density, high melting point, strength and antioxidant property at high temperature, γ-TiAl has been a new light high-temperature alloy with competitiveness [1][2][3][4]. It shows great advantages in preparation of aviation structures including turbine engine, low pressure turbine blade and transition catheter beam [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Simulation of β-stabilised γ-TiAl Alloy Rolling and Its Defects Analyses

Zhang¹,

Zhang²,

Liu³

et al. 2017

Esse 2017

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To overcome the poor ductility of this two-phase (γ+γ/α2) material, novel β-solidifying multi-phase γ-TiAl based alloys were developed to improve the hot workability. In order to study the plastic deformation characteristics of β-stabilised γ-TiAl alloy and find out the feasibility of using computer simulation to analyse the hot deformation process, the rolling process of TiAl billet was simulated by means of DEFORM 3D. It is concluded that (1) the changes of the temperatures, stresses and strains at the different regions of the billet were simulated during the entire rolling process, (2) based on the stress and strain distributions of the rolled billet, the forming defects analyse was proceeded and it is concluded that some rolling defects or flaw occur near the head surface or around the side edge during the plastic deformation process. During the rolling process, rolling force decreased with the elevation of rolling temperature and the reduction of rolling rate and pass reduction. Since the cooling rate of the sheet edges is faster with lower temperature, it is easy to generate stress concentrated in edge region during the deformation process. The greater the reduction is and the greater the damage is. In summary, in order to ensure the success of TiAl based alloy sheet rolling, it should be used at higher temperatures, lower rolling reduction rate and slower rolling rate.

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Emission mitigation potential of lightweight intermetallic TiAl components

Cited by 33 publications

References 7 publications

Grain Growth and β to α Transformation Behavior of a β‐Solidifying TiAl Alloy

Grain Growth and β to α Transformation Behavior of a β‐Solidifying TiAl Alloy

REVIEW OF THE INVESTMENT CASTING OF TiAI-BASED INTERMETALLIC ALLOYS

Simulation of β-stabilised γ-TiAl Alloy Rolling and Its Defects Analyses

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