scholarly journals Effect of Cooling Rate on Hardness of Commercial Titanium Alloys

JOM ◽  
1956 ◽  
Vol 8 (2) ◽  
pp. 288-288 ◽  
Author(s):  
Howard Martens
Keyword(s):  
Titanium Alloys ◽  
Cooling Rate ◽  
Commercial Titanium

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.

Recovery during aging of commercial titanium alloys

1967 ◽  
Vol 9 (12) ◽  
pp. 875-879
Author(s):  
L. P. Luzhnikov ◽  
V. M. Novikova ◽  
A. P. Mareev ◽  
I. S. Orlova
Keyword(s):  
Titanium Alloys ◽  
Commercial Titanium

scholarly journals Effect of microstructure and cooling rate on the fatigue performance of TIMETAL® 575

2020 ◽  
Vol 321 ◽  
pp. 12019
Author(s):  
M. Bodie ◽  
M. Thomas ◽  
A. Ayub
Keyword(s):  
Titanium Alloys ◽  
Cooling Rate ◽  
Mechanical Performance ◽  
Volume Fraction ◽  
Electron Backscatter Diffraction ◽  
Material Selection ◽  
Weight Ratio ◽  
High Strength ◽  
Fatigue Performance ◽  
Aerospace Applications

A key design consideration for material selection in the aerospace industry is weight reduction; with excellent strength to weight ratio, high temperature resistance, and fatigue performance, titanium alloys are extensively used. New titanium alloys continue to enhance performance and broaden the range of applications. Titanium Metals Corporation (TIMET) recently developed TIMETAL® 575 (Ti575), a high strength titanium alloy with superior fatigue performance over Ti-6Al-4V, aimed at aerospace applications where these properties are imperative i.e. aerospace turbine discs and blades. [1] [2] This work intends to advance the understanding of the effect of thermal processing of Ti575, by investigating the effect of primary alpha (αp) volume fraction and cooling rate on tensile and fatigue performance in post forged heat-treated microstructures. Microstructural assessment and mechanical performance were completed and are discussed. Three cooling methods from three solution heat-treat temperatures were investigated in this work. The results from these experiments were compared using optical microscopy, electron backscatter diffraction (EBSD), room temperature tensile and high cycle fatigue (HCF) tests.

scholarly journals INFLUENCE OF HYDROGEN ON PLASTIC FLOW OF THE TITANIUM AND ITS ALLOYS

2017 ◽  
Vol 23 (2) ◽  
pp. 122 ◽  
Author(s):  
Alexey Ovchinnikov ◽  
Svetlana Skvortsova ◽  
Andrey Mamonov ◽  
Eugene Yermakov
Keyword(s):  
Phase Composition ◽  
Titanium Alloys ◽  
Yield Stress ◽  
Test Method ◽  
Management Tool ◽  
Research Approach ◽  
Commercial Titanium ◽  
Wide Range ◽  
The One ◽  
Hydrogen Alloying

<p>The relevance is established by the widespread titanium application in the modern machine engineering on the one hand, on the other hand – by low manufacturability. In this context, this article is aimed to exposure fundamental laws of the reversing hydrogen alloying for the titanium alloys manufacturability improvement during the plastic yield process.</p><p>Deformability of titanium alloys, formation of the structure and properties during deformation and the influence of hydrogen on these processes has been extensively studied recently [1-14].</p><p>The leading research approach is to determine stress-related characteristics by the compression-test method at the isothermal conditions and then to compare the results for three different alloys: commercial titanium, α - Ti-6Al alloy and α+β – Ti-6Al-4V alloy. Hydrogen alloying is also used as a flexible phase composition management tool for the investigated alloys.</p><p>In this paper the effect of hydrogen as an alloying element on the yield stress in commercial titanium and Ti-6Al and Ti-6Al-4V alloys is investigated. The connection is made between the strain resistance and phase composition in the wide range of temperatures. It has been found that the hydrogen alloying of commercial titanium in the α-field is accompanied by the yield stress decrease. The role of volume phase ratio in the alloys softening in α+β-field has been shown. The hydrogen hardening parameters in α-field are defined.</p><p>The paper materials are of a usage value for researchers and technologists, developing innovative technological processes of strained semi-finished titanium products manufacturing.</p>

Comparison of the Heat Treatment Responses of Three Commercial Titanium Alloys

1973 ◽  
Vol 1 (6) ◽  
pp. 514 ◽  
Author(s):  
SF Etris ◽  
KC Lieb ◽  
VK Sisca ◽  
IC Moore ◽  
AL Batik ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Titanium Alloys ◽  
Commercial Titanium ◽  
Treatment Responses
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