scholarly journals The fatigue performance of titanium alloys joined via the powder interlayer bonding method

2020 ◽  
Vol 109 (5-6) ◽  
pp. 1553-1561
Author(s):  
P. Davies ◽  
A. Johal ◽  
H. Davies ◽  
S. Marchisio
Keyword(s):  
Titanium Alloys ◽  
Fatigue Performance ◽  
Bonding Method ◽  
Interlayer Bonding ◽  
Powder Interlayer

scholarly journals The joining of gamma titanium aluminides via the powder interlayer bonding method

2020 ◽  
Vol 109 (7-8) ◽  
pp. 2049-2054
Author(s):  
P. D. Davies ◽  
H. M. Davies ◽  
I. Watkins ◽  
D. A. Britton
Keyword(s):  
Titanium Aluminides ◽  
Gamma Titanium ◽  
Gamma Titanium Aluminides ◽  
Bonding Method ◽  
Interlayer Bonding ◽  
Powder Interlayer

scholarly journals Powder interlayer bonding of titanium alloys: Ti-6Al-2Sn-4Zr-6Mo and Ti-6Al-4V

2019 ◽  
Vol 103 (1-4) ◽  
pp. 441-452 ◽  
Author(s):  
P. Davies ◽  
A. Johal ◽  
H. Davies ◽  
S. Marchisio
Keyword(s):  
Titanium Alloys ◽  
Interlayer Bonding ◽  
Powder Interlayer

scholarly journals The Bonding of Additive Manufactured Ti-6Al-4V via the Powder Interlayer Bonding (PIB) Process

2020 ◽  
Vol 321 ◽  
pp. 04041
Author(s):  
P. Davies ◽  
H. Davies ◽  
S. Marchisio
Keyword(s):  
Titanium Alloys ◽  
Fusion Zone ◽  
Aerospace Industry ◽  
Inert Atmosphere ◽  
Tig Welding ◽  
Inert Gas ◽  
Plasma Arc ◽  
High Integrity ◽  
Interlayer Bonding ◽  
Powder Interlayer

Powder interlayer bonding (PIB) is a novel joining technique. The technique has been developed to facilitate high integrity repairs of aerospace components, manufactured from titanium alloys commonly employed in the aerospace industry. The PIB technique utilises an interlayer between the two faying surfaces. In this study heating was supplied via induction, enabling a bond to be created in an inert atmosphere, shielding the fusion zone from oxidation during bonding. The PIB technique proved capable of producing high integrity bonds in additive manufactured Ti-6Al-4V, where approximately 85% of the strength of the alloy is retained after bonding. Advantages of this technique over more established joining methods such as tungsten inert gas (TIG) welding and plasma arc (PA) welding include a narrow fusion zone and localised heating. It is believed that PIB can compete against these more mature techniques, providing a technique suitable for joining a range of alloys found in the aerospace industry.

scholarly journals The Bonding of Additive Manufactured Ti-6Al-4V via the Powder Interlayer Bonding (PIB) Process

2020 ◽  
Vol 321 ◽  
pp. 04022
Author(s):  
P. Davies ◽  
H. Davies ◽  
S. Marchisio
Keyword(s):  
Titanium Alloys ◽  
Fusion Zone ◽  
Aerospace Industry ◽  
Inert Atmosphere ◽  
Tig Welding ◽  
Inert Gas ◽  
Plasma Arc ◽  
High Integrity ◽  
Interlayer Bonding ◽  
Powder Interlayer

Powder interlayer bonding (PIB) is a novel joining technique. The technique has been developed to facilitate high integrity repairs of aerospace components, manufactured from titanium alloys commonly employed in the aerospace industry. The PIB technique utilises an interlayer between the two faying surfaces. In this study heating was supplied via induction, enabling a bond to be created in an inert atmosphere, shielding the fusion zone from oxidation during bonding. The PIB technique proved capable of producing high integrity bonds in additive manufactured Ti-6Al-4V, where approximately 85% of the strength of the alloy is retained after bonding. Advantages of this technique over more established joining methods such as tungsten inert gas (TIG) welding and plasma arc (PA) welding include a narrow fusion zone and localised heating. It is believed that PIB can compete against these more mature techniques, providing a technique suitable for joining a range of alloys found in the aerospace industry.

scholarly journals Powder interlayer bonding of geometrically complex Ti-6Al-4V parts

2019 ◽  
Vol 106 (9-10) ◽  
pp. 3629-3639 ◽  
Author(s):  
I. T. Watkins ◽  
H. M. Davies ◽  
O. G. Stanners ◽  
S. Marchisio
Keyword(s):  
Fusion Zone ◽  
Volume Fraction ◽  
Cost Effective ◽  
Heating Source ◽  
Pressure Application ◽  
Alloy Strength ◽  
High Integrity ◽  
Interlayer Bonding ◽  
Powder Interlayer ◽  
Initial Heating

AbstractPowder interlayer bonding (PIB) is a novel joining technique, which has been developed to facilitate high-integrity repairs of aerospace components, manufactured from commonly used titanium alloys. The PIB technique utilises an interlayer between complex geometric components which are mated under pressure and a highly localised heating source. In this study, induction heating enabled bonding in an inert fusion zone by use of an oxygen-displacing shielding gas, with particular attention to the initial heating and pressure application. These early stages proved crucial to the elimination of pores and consolidation of the alloy powder, with porosity volume fraction reduced to just 0.5% after just 20 sec at the bonding force. The technique has produced high-integrity bonds in alloys such as Ti-6Al-4V, retaining approximately 90% of the alloy strength in previous studies, offering advantages over established joining methods such as tungsten inert gas (TIG) and plasma arc (PA) welding due to a more highly localised heating and fusion zone. It is believed that powder interlayer bonding can compete against these techniques, providing a more time and cost-effective repair route for net shape components manufactured from a range of alloys with minimal post-processing.

High Cycle Fatigue Performance in Laser Shock Peened TC4 Titanium Alloys Subjected to Foreign Object Damage

2018 ◽  
Vol 27 (3) ◽  
pp. 1466-1474 ◽  
Author(s):  
Sihai Luo ◽  
Xiangfan Nie ◽  
Liucheng Zhou ◽  
Yiming Li ◽  
Weifeng He
Keyword(s):  
Titanium Alloys ◽  
High Cycle Fatigue ◽  
Fatigue Performance ◽  
Foreign Object ◽  
Cycle Fatigue ◽  
Laser Shock ◽  
Foreign Object Damage

Liquid infiltrated powder interlayer bonding: a process for large gap joining

2000 ◽  
Vol 5 (3) ◽  
pp. 125-134 ◽  
Author(s):  
W.D. Zhuang ◽  
T.W. Eagar
Keyword(s):  
Interlayer Bonding ◽  
Powder Interlayer

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 Study on Ultra high-Cycle Bending Vibration Fatigue Performance of TC17 Titanium Alloys under Corrosion and Laser Shock Processing

2020 ◽  
Author(s):  
Hui Zhang ◽  
Xuan Chen ◽  
Quantong Li ◽  
Li Cheng ◽  
Jingsheng Shen ◽  
...  
Keyword(s):  
Titanium Alloys ◽  
Fatigue Performance ◽  
Laser Shock ◽  
Laser Shock Processing ◽  
Bending Vibration ◽  
Vibration Fatigue ◽  
Shock Processing
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