Materials | Free Full-Text | Deformation Characteristics, …
Titanium alloy sheets present inferior formability and severe springback in conventional forming processes at room temperature which greatly restrict their applications in complex-shaped components. In this paper, deformation characteristics and formability and springback behaviors of titanium alloy sheet at room temperature are …
The superplastic forming/diffusion bonding of TA7 titanium alloy …
TA15 titanium alloy is a kind of near-alpha titanium alloy with good balanced mechanical properties and maximum operating temperature of 500℃, which could be widely used for structure parts in ...
Titanium Sheet, Plate & Coil Stock from Supra Alloys
We also stock titanium alloys sheet, coil and plate such as 13-11Cr-3Al, 3Al-8V-6Cr-4Mo-4Z1, 6Al-6V-2Sn, 3Al-2.5V, 6Al-4V or Grade 5, 6Al-4V ELI or Grade 23, Grade 12 – which combines amazing strength at high temperatures with excellent weldability and corrosion resistance. The plate size is between .020'' to 6'', with some grades ...
Research on the Recrystallization Process of the Ti-70 Titanium Alloy Sheet
As Ti-70 is a new type of marine titanium alloy, research on the recrystallization process of its sheet is necessary. This article studies the effects of different temperatures and times of annealing on the recrystallization process of 5.0 mm thick Ti-70 titanium alloy cold-rolled sheets by metallographic analyses and hardness tests. The …
Microstructure performance and formation mechanism of …
In summary, LA technique has provided the important opportunities in the realization of the productions of the amorphous–nanocrystalline layer on a TA7 titanium alloy. LA of the Ni60A–Si 3 N 4 –Ag–Y 2 O 3 mixed powders on a TA7 titanium alloy can form an nanocrystalline layer. Such layer mainly consisted of γ-Ni, TiN, γ-(Fe, Ni) and ...
Integrated design process of multi-function topological …
Download scientific diagram | Integrated design process of multi-function topological structures based on full life cycle. from publication: Deformation behavior and mechanical properties of ...
Common Forging Defects And Prevention Of Titanium Alloy
A large number of references have mentioned that the "pitting" and voids are prone to occur in the forging process of the alloy. By analyzing the "pitting" of TA7 titanium alloy and the formation mechanism of void-like defects, we have concluded a set of cavities for preventing the toughness of TA7 titanium alloy forgings.
The effect of thickness on fracture characteristics of TC4 titanium …
Single-edge crack tensile tests of TC4 titanium alloys with different plate thicknesses were conducted, and digital image correlation technique was used to obtain crack tip opening displacement (δ5) and crack mouth opening displacement (V). The influence of thickness on the fracture characteristics of the TC4 titanium alloy sheets is …
Improvement in mechanical and microstructural properties of novel TA7
The joining of titanium and stainless steel is challenging with conventional filler metals due to the formation of Fe-Ti intermetallic compounds (IMCs). Therefore, a filler that is compatible with both metals is necessary to avoid these IMCs and enhance the mechanical properties of Ti-SS joint. This research aims to investigate the effect of novel …
Wear and corrosion properties of a B–Al composite layer on pure titanium
In this work, the pack boriding method was used to treat the surface of Ti-5Al-2.5Sn (TA7) titanium alloy. The boriding temperatures were selected as 975 °C, 1000 °C, 1025 °C, 1050 °C, and 1075 °C, and the boriding time was 6, 8, 10, and 12 h. The phase and microstructure of the boride layer were analyzed using X-ray diffraction and ...
TA7 Ti Alloy
Value Unit Young's modulus Tensile strength Elongation Fatigue Yield strength 200000 - 200000 650 - 880 8 - 25 275 - 275 350 - 550 MPa MPa % MPa MPa Physical Properties …
Elevated Temperature Deformation Behavior of TA7 Titanium Alloy
This study mainly aims to investigate the elevated temperature deformation behavior of TA7 titanium alloy. Therefore, isothermal hot compression tests were carried out within the temperature range of 1123~1273 K and strain rate range of 0.001~1 s -1 . Then the constitutive equation and processing map are developed to enhance the …
Deformation Characteristics, Formability and Springback …
1. Introduction. Titanium and its alloys have the advantages of low density, high strength, high temperature resistance and corrosion resistance, which have advantages in engineering applications in the fields of aerospace, maritime, medical apparatus, instruments, etc. [1,2,3].Specifically, titanium alloy is preferred for the manufacture of …
Analysis of Deformation Behavior for Titanium Alloys at …
Titanium alloys are widely used in large-scale mechanical engineering, the aviation and space industries, and in medicine [1, 2].A rod [], a wire [4, 5], a sheet [], a strip, as well as blanks of complex configuration are obtained from titanium alloys by additive manufacturing [7, 8].By strength, all titanium alloys can be divided into three groups: …
One-Step Hybrid Bending/Diffusion Bonding Process and …
1. Introduction. Titanium has excellent corrosion resistance, creep, and fatigue properties, and a high strength-to-weight ratio [1,2,3,4,5].Titanium and its alloys have several advantages and, therefore, have been recognized as potential materials for applications in the automotive, biomedical, and aerospace industries [6,7,8,9,10,11,12,13].However, …
Elevated Temperature Deformation Behavior of TA7 Titanium …
According to the results, the deformation temperature of 1223 K and strain rate of 0.001 s −1 are the best processing parameters for the TA7 alloy. In addition, the …
Diffusion Bonding of Ti6Al4V at Low Temperature via …
Titanium alloys used to be welded to gain good joint strength at 920 °C through diffusion bonding. However, due to the heat preservation at high temperatures for a long time, we obtain joints with great bond strength while the mechanical properties of the sheet are lost. In this paper, taking Ti6Al4V alloy as an example, we studied the …
Constitutive Model and Microstructure Evolution of a Novel …
The thermal deformation behavior of a novel TG6 titanium alloy from 850 to 1050 °C with a strain rate of 0.001-10 s−1 was studied using a Gleeble-3500 thermal simulation compressor. The constitutive model was established, then metallography was used to observe the evolution of microstructure under the influence of temperature or …
Guofeng WANG | Bachelor of Engineering
During this study, a hollow structure with two stiffeners was manufactured by SPF/DB process using TA7 titanium alloy. The tensile behavior of the alloy was investigated by undertaking uni-axial ...
Introduction to TA7 titanium alloy
TA7 alloy is a medium-strength α-type titanium alloy (Ti-5Al-2.5Sn) that cannot be strengthened by heat treatment. It is usually used in the annealed state and …
Characteristics of Resistance Spot Welded Ti6Al4V Titanium Alloy Sheets
Ti6Al4V titanium alloy is applied extensively in the aviation, aerospace, jet engine, and marine industries owing to its strength-to-weight ratio, excellent high-temperature properties and corrosion resistance. In order to extend the application range, investigations on welding characteristics of Ti6Al4V alloy using more welding methods are required. In the present …
The superplastic forming/diffusion bonding and mechanical …
The superplastic forming/diffusion bonding (SPF/DB) process has been widely applied to manufacture the multi-layer components. In this paper, a four-layer hollow structure with squad grid was fabricated by SPF/DB process. The superplastic behavior of TA15 alloy was investigated by the uni-axial tensile tests at high temperature, and the …
Titanium Specifications, Titanium Properties and Titanium …
Tolerances-Corrosion and Heat Resistant Steel and Iron Base Alloy Sheet, Strip and Plate and Titanium and Titanium Alloy Sheet, Strip and Plate: A-2: 5AL-2.5Sn (ELI) AMS 2249: Chemical Check Analysis Limits- Titanium and Titanium Alloys: A-3: 6AL-2Cb-1Ta-0.8Mo: AMS 2631: Ultrasonic Inspection of Titanium and Titanium Alloys: A-4: 8AL-1Mo-1V ...
Grade 7 Titanium Alloy Plate/Sheet
Gr7 Titanium Alloy Sheet/Plate is a corrosion-resistant alpha titanium alloy with mechanical properties similar to commercial grades. It adds a small amount of palladium to improve corrosion resistance, especially in …
Time-temperature effects in dual scale crack growth of titanium alloys
The extreme temperature designed for TA7 and TA12 of titanium alloys is 550 °C, which means titanium alloys is able to withstand long operating hours of high temperature up to 550 °C.Let the temperature remains unchanged at 300 °C, 400 °C and 550 °C for TA7, respectively.The initial crack length is 1.9 mm. Influence of constant …
Titanium Alloys professional manufacturer
Ti Gr6 Tube/Pipe. Ti Gr6 Wire. Titanium Grade 6 is a medium-strength α-type single-phase titanium alloy, containing 5% α-stabilizing element aluminum and 2.5% neutral element tin. The alloy cannot be strengthened by heat treatment, and is usually used in an annealed state, and has good fracture toughness at room temperature and high temperature.
Microstructure of Ti5Al2.5Sn and Ti6Al4V deformed in …
Diffusion bonding experiments utilizing TA7 titanium alloy were conducted at different temperatures. The shear strength of DB joints at 880 °C and 900 °C were 568.4 MPa and 569.1 MPa, respectively. Based on the superplastic properties, a finite element simulation of the hollow structure was carried out, with results showing that this could be ...
Growth kinetics and corrosion properties of pack-borided Ti-5Al-2.5Sn alloy
The experimental material in this study was TA7 titanium alloy, and the chemical compositions were listed Table 1.Before the pack boriding, TA7 alloy bar was processed into Φ15mm × 2 mm circular disc.The samples were placed in alcohol, cleaned in an ultrasonic cleaning machine, and then ground with 2000 grit sandpaper and polished …
The superplastic forming/diffusion bonding of TA7 titanium …
DOI: 10.1016/j.jmapro.2021.10.064 Corpus ID: 244533951; The superplastic forming/diffusion bonding of TA7 titanium alloy for manufacturing hollow structure with …
Low-temperature superplasticity of cryorolled Ti-6Al-4V titanium alloy …
The original material was 2 mm annealed Ti-6Al-4V titanium alloy sheet. The chemical composition of the material was Al-6.11, V-4.04, Fe-0.13, O-0.158, C-0.018, N-0.009, H-0.009, and Ti-balance (all in wt.%). An automatic-gage-control four-high rolling mill was used for cryorolling. The sheets were cooled in a cryostat with liquid nitrogen for ...
An investigation of pulsed laser cutting of titanium alloy sheet
2. Experimental method. A Lumonics JK702H Nd:YAG pulsed laser, with a maximum average power of 350 W and a wavelength of 1.06 μm, was applied in this experiment to cut a 1 mm thick TC1 titanium alloy sheet, as shown in Fig. 1. TC1 is an alpha-beta titanium alloy with 2% aluminum and 1.5% manganese.
Microstructure and mechanical properties of electron beam …
The welding materials used in this paper are 4J29 kovar alloy and TC4 titanium alloy, which have been machined into plates with the size of 50 × 30 × 2 mm 3.Their chemical composition and physical properties of 4J29 and TC4 are shown in tables 1 and 2, respectively.The interlayers are 0.5 mm thick pure copper foil and 0.58 mm thick …
Effect of annealing temperature on microstructure, texture …
However, there are relatively few studies devoted to understand the effect of annealing temperature on texture and mechanical properties of near α titanium alloy sheet. TA32 alloy is a 550 °C near α titanium alloy developed by Institute of Metal Research, Chinese Academy of Sciences. The sheet of this alloy is a proposed material for thin ...
Plastic Deformation Behavior of TA7 Titanium Alloy
The flow stress of TA7 titanium alloy was investigated by isothermal hot compression in the temperature range of 850-1000℃ and strain rate of 0.001-0.1s-1.
(PDF) Relationship among microstructure, mechanical properties …
The relationship among microstructure, mechanical properties and texture of TA32 titanium alloy sheets during hot tensile deformation at 800 °C was investigated. In the test, the original sheet ...
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