Book ChapterDOI
Effect of Concurrent Microstructure Evolution and Hydrogen Level on Flow Behavior of Near Alpha Ti-Alloy
Jagadeesh Babu,Bhagwati Prasad Kashyap,Nityanand Prabhu,Rajeev Kapoor,R.N. Singh,Bhupendra K. Kumawat,J.K. Chakravartty +6 more
- pp 665-672
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TLDR
In this paper, the effect of H on the microstructure and flow properties of compression samples of VT20 Ti-alloy Ti-5.9Al-2.1Zr-1.4Mo was examined.Abstract:
Separate compression samples of VT20 Ti-alloy Ti-5.9Al-2.1Zr-1.6V-1.4Mo (wt%), charged with 0, 0.15 and 0.36 wt%H, were deformed to true strain of 0.70 at a strain rates of 1×10−3 and 1×10−1 s−1 at test temperatures of 600 and 850 °C. H charging led to the varying microstructures ranging from equiaxed to lamellar ones depending on H level. In the course of deformation, their occurred refinement of microstructures with reduced interlamellar spacing depending on the test conditions. The contributions of these sources to microstructure evolution and flow properties were examined in an attempt to explore some correlation between them. An attempt is made to understand the effect of H present on the microstructure and flow properties to account for the variations in the parameters of the constitutive relationship.read more
References
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Journal ArticleDOI
Thermomechanical processing of beta titanium alloys—an overview
Isaac Weiss,S. L. Semiatin +1 more
TL;DR: In this paper, the thermomechanical processing of beta titanium alloys in general and high temperature deformation mechanisms, microstructure control during TMP, and final mechanical properties in particular are reviewed.
Journal ArticleDOI
Hydrogen as a temporary alloying element in titanium alloys: thermohydrogen processing
TL;DR: In this article, the status of the methods and applications of thermohydrogen processing to titanium alloys are reviewed. And the principles of thermodynamic processing, based on the hydrogen induced alterations of the phase compositions and the kinetics of phase reactions in hydrogenated Titanium alloys, are overviewed.
Journal ArticleDOI
Flow softening and microstructural evolution of TC11 titanium alloy during hot deformation
TL;DR: In this article, a hot compression test on samples of the TC11 (Ti-6.5Al, 3.5Mo, 1.5Zr, 0.3Si) alloy has been done within the temperatures of 750-950°C and strain rate ranges of 0.1-10−s−1 to 40-60% height reduction.
Journal ArticleDOI
Fundamental aspects of the Ti-H system: theoretical and experimental behaviour
TL;DR: In this paper, the interaction of hydrogen with titanium was studied in order to characterize some important microscopic and macroscopic properties of this system, such as the variation of the electronic density and the induced density of states due to the presence of the hydrogen in the matrix of Ti.
Journal ArticleDOI
Effect of hydrogen on the superplasticity of Ti600 alloy
TL;DR: In this article, the influence of hydrogen on microstructure evolution and superplastic behavior of a new near α high-temperature titanium alloy-Ti600 alloy was studied.