High strength microstructural forms developed in titanium alloys by rapid heat treatment

2001 ◽  
Vol 11 (PR4) ◽  
pp. Pr4-233-Pr4-240
Author(s):  
O. M. Ivasishin
Keyword(s):  
Heat Treatment ◽  
Titanium Alloys ◽  
High Strength ◽  
Rapid Heat Treatment

Mechanical Behaviour of Beta Titanium Alloys

2021 ◽  
Vol 1016 ◽  
pp. 964-970
Author(s):  
Nageswara Rao ◽  
Geetha Manivasagam
Keyword(s):  
Heat Treatment ◽  
Titanium Alloys ◽  
Dynamic Properties ◽  
Solution Treatment ◽  
Weight Ratio ◽  
High Strength ◽  
Static Properties ◽  
Beta Titanium Alloy ◽  
Beta Titanium ◽  
Beta Titanium Alloys

Beta titanium alloys have several attractive features; this has resulted in this group of alloys receiving much attention since 1980’s. Among the attributes which distinguish them for their superiority over other structural materials are (i) high strength to which they can be heat treated, resulting in high strength to weight ratio (ii) high degree of hardenability which enables heat treatment in large section sizes to high strength levels (iii) excellent hot and cold workability, making them as competitive sheet materials etc. The standard heat treatment consists of solution treatment in beta or alpha plus beta phase field followed by aging. However, certain aging treatments can render the materials in a state of little or no ductility; the designer has to be aware of this behaviour and has to keep away from such treatments while working with the materials. Such unfavourable aging treatments may adversely affect not only the static properties such as reduction in area and elongation in a tensile test, but also dynamic properties such as impact toughness. Results of fractographic studies are in line with those of mechanical testing. The authors would present the foregoing analysis, based primarily on the wide-ranging researches they carried out on beta titanium alloy Ti15-3 and to some extent data published by researchers on other grades of beta titanium alloys. An attempt is made to explain the mechanisms underlying the embrittlement reactions that take place in beta titanium alloys under non-optimal aging treatments.

Application of Local Rapid Heat Treatment for Improvement of Microstructure and Mechanical Properties of Titanium Products

2010 ◽  
Vol 436 ◽  
pp. 185-194 ◽  
Author(s):  
Pavlo E. Markovsky
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Titanium Alloys ◽  
Physical Vapor Deposition ◽  
Compressor Blades ◽  
Turbine Engine ◽  
Commercial Titanium ◽  
Heat Treated Condition ◽  
Complicated Part ◽  
Rapid Heat Treatment

Local Rapid Heat Treatment (LRHT) based on induction-heating methods can be used to form unique location-specific microstructures and properties in commercial titanium alloys while maintaining the bulk of the material in an initial, non-heat-treated condition. The present work is focused on practical aspects of LRHT application for microstructure/ mechanical properties improvement of some parts made of commercial titanium alloys. It is shown, that LRHT application could improve mechanical properties of such complicated part like turbine engine compressor blades, and two made of Ti-6Al-4V and VT22 titanium alloys goods after repair with Electron Beam Physical Vapor Deposition as well as with Build-up Welding.

Potential of rapid heat treatment of titanium alloys and steels

1999 ◽  
Vol 263 (2) ◽  
pp. 142-154 ◽  
Author(s):  
Orest M Ivasishin ◽  
Roman V Teliovich
Keyword(s):  
Heat Treatment ◽  
Titanium Alloys ◽  
Rapid Heat Treatment

Effect of Annealing Process on Microstructure and Tensile Properties of TC16 Titanium Alloy after Rapid Heat Treatment

2021 ◽  
Vol 1032 ◽  
pp. 152-156
Author(s):  
Peng Lei ◽  
Shu Cheng Dong ◽  
Guang Yu Ma ◽  
Tuo Cheng ◽  
O.M. Ivasishin
Keyword(s):  
Heat Treatment ◽  
Titanium Alloy ◽  
Tensile Properties ◽  
High Strength ◽  
Optical Microscope ◽  
Annealing Process ◽  
Test Machine ◽  
Two Phase ◽  
Reduction Of Area ◽  
Rapid Heat Treatment

TC16 titanium alloy is a martensite α+β two-phase high strength titanium alloy, which can improve its structure and enhance properties through heat treatment. Effect of annealing process on microstructure and tensile properties of TC16 titanium alloy was investigated using optical microscope, scanning electron microscope and universe tensile test machine. The results show that when annealed at 720°C for 4h then furnace cooling to ambient temperature, the tensile strength of the TC16 alloy reaches nearly 900MPa,the elongation reaches 19.6% and the reduction of area reaches 65%, which present a good comprehensive performance.

Effect of Rapid Heat Treatment on the Microstructure of Alpha + Beta Titanium Alloys

2018 ◽  
Author(s):  
S. Mujahid ◽  
C. Krivanec ◽  
W. Whittington ◽  
S. Agnew ◽  
J. Bhattacharyya ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Titanium Alloys ◽  
Beta Titanium ◽  
Alpha Beta ◽  
Rapid Heat Treatment ◽  
Beta Titanium Alloys

Microstructure and Properties of Beta 21S Alloy with 0.2 wt. % of Carbon

2016 ◽  
Vol 246 ◽  
pp. 19-24 ◽  
Author(s):  
Agnieszka Szkliniarz
Keyword(s):  
Heat Treatment ◽  
Titanium Alloys ◽  
High Strength ◽  
Vacuum Induction Melting ◽  
Induction Melting ◽  
High Temperature Alloys ◽  
Global Cost ◽  
Alloy Addition ◽  
Crucible Furnace ◽  
The Relationship

Taking into account the high requirements of new structural materials the development of high-strength and high-temperature alloys based on titanium is a subject of great scientific interest. Carbon has usually been regarded as an impurity of titanium alloys. Increasingly however, it begins to play an important role as alloy addition and, taking into account its price, it is consistent with the global cost-cutting trend for production and processing of new alloys with improved properties. The addition of carbon creates new application opportunities for titanium alloys. The relationship between mechanical properties and microstructure of Beta 21S alloy with carbon addition were considered in this study. The alloy was produced traditionally by vacuum induction melting in cold crucible furnace and hot-deformed with further heat treatment. The effect of heat treatment on the conventional strength and creep resistance of researched alloy was also determined.

Effect of Rapid Heat Treatment on the Microstructure of Alpha + Beta Titanium Alloys

2018 ◽  
Author(s):  
S. Mujahid ◽  
C. Krivanec ◽  
W. Whittington ◽  
S. Agnew ◽  
J. Bhattacharyya ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Titanium Alloys ◽  
Beta Titanium ◽  
Alpha Beta ◽  
Rapid Heat Treatment ◽  
Beta Titanium Alloys

Rosenhain Centenary Conference - Titanium alloys for engineering structures

1976 ◽  
Vol 282 (1307) ◽  
pp. 401-411 ◽  
Keyword(s):  
Heat Treatment ◽  
Titanium Alloys ◽  
Alloy Composition ◽  
High Strength ◽  
General Purpose ◽  
Alloy Development ◽  
Engineering Structures ◽  
Factors Affecting ◽  
The One ◽  
The Cost

The range of properties obtainable in titanium alloys derives from the use which is made of the j5~oc phase transformation, and alloying elements are classified according to their effect on the transformation temperature. The relation between composition and heat treatment on the one hand and the resultant microstructure and mechanical properties on the other hand are considered. In addition to the commonly used ‘general purpose’ alloy Ti-6A1-4V, more advanced alloys have been developed for three main applications, namely high strength forging alloys, creep resistant alloys and sheet alloys. For each type of alloy a different balance of material properties is required and the process of optimizing the alloy composition and heat treatment to give the best balance in each case is discussed. Factors affecting the cost of titanium alloys are outlined and consideration is given to the likely trends of titanium alloy development in the future.

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