Recent advances in silicon containing high temperature titanium alloys
Ertuan Zhao,Shichen Sun,Yu Zhang +2 more
TLDR
In this article, the influence of heat treatment and hot working process on the precipitation behavior of silicide, as well as on the effect of Si on the properties and strengthening mechanism of high temperature titanium alloys.Abstract:
Silicon (Si), which exists in the form of solid solution and silicide, is an important component in high temperature titanium (Ti) alloys. The content of Si is often limited to less than 0.5wt.%, but powder metallurgy shows the potential for the preparation of titanium alloys with high Si content and high temperature. The addition of Si is beneficial to the improvement of strength, creep resistance and oxidation resistance of high temperature titanium alloy, but it will reduce the plasticity, especially the plasticity at room temperature. In this review, with particular stress on the influence of heat treatment and hot working process on the precipitation behavior of silicide, as well as on the effect of Si on the properties and strengthening mechanism of high temperature titanium alloys. The development direction of high temperature titanium alloy containing Si is to increase the content of Si and to control the precipitation behavior of silicide through reasonable process.read more
Citations
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Creep Behavior of Fusion Zone and Base Metal of the Electron Beam Weldments of a Near-alpha Titanium Alloy
TL;DR: In this paper, the authors investigated the high temperature creep behavior of fusion zone (FZ) and base metal (BM) of the electron beam weldments of a near-alpha titanium alloy Ti-60.
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Study on Fast Gas Forming with In-Die Quenching for Titanium Alloys and the Strengthening Mechanisms of the components
TL;DR: In this paper , a new forming process of Fast Gas Forming with in-die Quenching (FGFQ) for titanium alloys is developed, in which the tube blank is heated by a current in tens of seconds and the pressurization rate is up to 20 MPa/s.
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Dynamic Softening and Hardening Behavior and the Micro-Mechanism of a TC31 High Temperature Titanium Alloy Sheet within Hot Deformation.
Kexin Dang,Kehuan Wang,Gang Liu +2 more
TL;DR: In this article, the effects of deformation temperature, strain rate, and strain on microstructure evolution were revealed, and the results showed that the dynamic softening and hardening of the material depended on the deformation temperatures and strain rates, and changed dynamically with the strain.
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Effects of hybrid reinforcements to the high temperature tensile and creep properties of a (TiB + TiC + Y2O3)/α-Ti composite
TL;DR: In this article , the tensile properties and creep behaviors of the matrix alloy and the composite at 700 °C were systematically studied, and the results showed that the reinforcements provided the nucleation position for the α phase, which changed the microstructure from the widmanstatten structure to the basket-weave structure.
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Effect of TiB, TiC and Y2O3 on tensile properties and creep behavior at 650 ℃ of titanium matrix composites
TL;DR: In this paper , two kinds of (TiB + TiC + Y2O3)/α-Ti composites with different TiB and TiC contents and the corresponding matrix alloy were prepared by induction skull melting.
References
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TL;DR: In this paper, the machinability of near-beta titanium alloys like Ti555.3 compared with the commonly used Ti6Al4V was analyzed and a correlation between the mechanical properties of work material, tool wear, and component forces was found.
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Titanium metal matrix composites: An overview
TL;DR: Titanium matrix composites (TMCs) offer high specific strength and stiffness compared with steel and nickel-base materials as mentioned in this paper, and can offer up to 50% weight reduction relative to monolithic superalloys.
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