scholarly journals Microstructure and mechanical properties of cold-deformed pure titanium and titanium grade 5

2020 ◽  
Vol 54 (5) ◽  
pp. 585-588
Author(s):  
K. Mertová ◽  
M. Duchek
Keyword(s):  
Mechanical Properties ◽  
Pure Titanium ◽  
Microstructure And Mechanical Properties ◽  
Grade 5 ◽  
Titanium Grade

An assessment into mechanical properties and microstructural behavior of TIG welded Ti-6Al-4V titanium alloy

2020 ◽  
Vol 10 (3) ◽  
pp. 281-292 ◽  
Author(s):  
Saurabh Dewangan ◽  
Suraj Kumar Mohapatra ◽  
Abhishek Sharma
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Weight Ratio ◽  
High Strength ◽  
Hardness Test ◽  
Content Type ◽  
Ti Alloys ◽  
Microstructure And Mechanical Properties ◽  
Grade 5 ◽  
Selection Of

PurposeTitanium (Ti) alloys are in high demand in manufacturing industries all over the world. The property like high strength to weight ratio makes Ti alloys highly recommended for aerospace industries. Ti alloys possess good weldability, and therefore, they were extensively investigated with regard to strength and metallurgical properties of welded joint. This study aims to deal with the analysis of strength and microstructural changes in Ti-6Al-4V (Grade 5) alloy after tungsten inert gas (TIG) welding.Design/methodology/approachTwo pair of Ti alloy plates were welded in two different voltages, i.e. 24 and 28 V, with keeping the current constant, i.e. 80 A It was a random selection of current and voltage values to check the performance of welded material. Both the welded plates were undergone through some mechanical property analysis like impact test, tensile test and hardness test. In addition, the microstructure of the welded joints was also analyzed.FindingsIt was found that hardness and tensile properties gets improved with an increment in voltage, but this effect was reverse for impact toughness. A good corroboration between microstructure and mechanical properties, such as tensile strength, hardness and toughness, was reported in this work. Heat distribution in both the welded plates was simulated through ANSYS software to check the temperature contour in the plates.Originality/valueA good corroboration between microstructure and mechanical properties, such as tensile strength, hardness and toughness, was reported in this study.

scholarly journals Effect of Al Content in Magnesium Alloy on Microstructure and Mechanical Properties of Laser-Welded Mg/Ti Dissimilar Joints

Materials ◽  
2020 ◽  
Vol 13 (12) ◽  
pp. 2743
Author(s):  
Wen Dong ◽  
Rongrong Huang ◽  
Hongyun Zhao ◽  
Xiangtao Gong ◽  
Bo Chen ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Fusion Zone ◽  
Base Metal ◽  
Chemical Potential ◽  
Pure Titanium ◽  
Potential Gradient ◽  
Fracture Load ◽  
Dissimilar Joints ◽  
Al Content ◽  
Microstructure And Mechanical Properties

Laser penetration welding of magnesium alloys and pure titanium TA2 with unequal thickness was performed. Mg base metal with different Al content (AZ31B, AZ61A, AZ91D) was used to investigate the influence of Al element in microstructure and mechanical properties of Mg/Ti dissimilar joints. The results revealed that the change of Mg base metal did not influence the weld appearance of the joints. Three kinds of joint all presented the best mechanical property when the laser power was 3500 W. With the increase content of Al elements in Mg base metal, a reaction layer was observed which was identified as Ti3Al. The highest enrichment of Al element was obtained and its fraction reached 19.31 at% at the AZ91/TA2 interface. The chemical potential gradient of Al from AZ91 to Ti alloy was higher than that from the other two base metals based on thermodynamic calculation. The maximum fracture load reached 3597 N when AZ61 was employed as the base metal and the fracture position was the Ti base metal. AZ31/TA2 joints failed at the weld seam without necking due to the rapid propagation of cracks at the Mg/Ti interface. The AZ91/TA2 joint failed inside the Mg fusion zone with necking at the middle area of the weld, which resulted from the precipitation of brittle phases such as Mg–Al, Ti–Al phases in the fusion zone of Mg alloys.

Possibilities of biocompatible material production using conform SPD technology

2017 ◽  
Vol 1 (88) ◽  
pp. 5-11 ◽  
Author(s):  
J. Palán ◽  
L. Maleček ◽  
J. Hodek ◽  
M. Zemko ◽  
J. Dzugan
Keyword(s):  
Mechanical Properties ◽  
Dental Implants ◽  
Nanostructured Materials ◽  
Continuous Production ◽  
Pure Titanium ◽  
Commercially Pure Titanium ◽  
Commercially Pure ◽  
Ultrafine Grained ◽  
Materials Research ◽  
Titanium Grade

Purpose: At present, materials research in the area of SPD (severe plastic deformation) processes is very intensive. Materials processed by these techniques show better mechanical properties and have finer grain when compared to the input feedstock. The refined microstructure may be ultrafine-grained or nanostructured, where the grain size becomes less than 100 nm. One of the materials used for such processes is CP (commercially pure) titanium of various grades, which is widely used for manufacturing dental implants. The article deals with one of the technologies available for the production of ultrafine-grained titanium: Conform technology. CP titanium processed by CONFORM technology exhibits improved mechanical properties and very favourable biocompatibility, due to its fine-grained structure. The article presents the current experience in the production of ultrafine CP titanium using this technology. The main objective of this article is describing the behaviour of CP titanium during forming in the Conform device and its subsequent use in dental implantology. Design/methodology/approach: In the present study, commercially pure Grade 2 titanium was processed using the CONFORM machine. The numerical simulation of the process was done using FEM method with DEFORMTM software. The evaluation was performed by simple tensile testing and transmission electron microscopy. The first conclusions were derived from the determined mechanical properties and based on analogies in available publications on a similar topic. Findings: This study confirmed that the SPD process improves mechanical properties and does not impair the ductility of the material. The CONFORM process enables the continuous production of ultrafine-grained or nanostructured materials. Research limitations/implications: At the present work, the results show the possible way of continuous production of ultrafine-grained or nanostructured materials. Nevertheless, the further optimization is needed in order to improve the final quality of wires and stabilize the process. As these factors will be solved, the technology will be ready for the industry. Practical implications: The article gives the practical information about the continuous production of ultrafine-grained pure titanium Grade 2 and the possibility of use this material for dental implants. Originality/value: The present paper gives information about the influence of the CONFORM technology on final mechanical and structural properties with the emphasis on technological aspects

Effect of Laser Beam Welding on Microstructure and Mechanical Properties of Commercially Pure Titanium

2016 ◽  
Vol 70 (7) ◽  
pp. 1817-1825 ◽  
Author(s):  
Santosh Kumar Sahoo ◽  
Bibhudutta Bishoyi ◽  
Upendra Kumar Mohanty ◽  
Sushant Kumar Sahoo ◽  
Jambeswar Sahu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Laser Beam ◽  
Laser Beam Welding ◽  
Pure Titanium ◽  
Commercially Pure Titanium ◽  
Commercially Pure ◽  
Microstructure And Mechanical Properties

Numerical Simulation of Welding Thin Titanium Sheets

2013 ◽  
Vol 549 ◽  
pp. 407-414 ◽  
Author(s):  
Piotr Lacki ◽  
Konrad Adamus
Keyword(s):  
Electron Beam ◽  
Electron Beam Welding ◽  
Pure Titanium ◽  
Welding Process ◽  
Source Model ◽  
Commercially Pure Titanium ◽  
Structural Elements ◽  
Grade 5 ◽  
Titanium Grade ◽  
Sheet Deformation

Different titanium grades are used in aircraft construction because of titaniums unique properties. These materials are mostly joined by different welding methods. Electron beam welding technology is often used in the aircraft industry to join structural elements made of titanium alloys. The goal of the work is a numerical analysis of the electron beam welding process applied to joining thin titanium sheets. The analysis was performed using finite element method, FEM. Temperature distribution, size of heat affected zone (HAZ), depth and width of fusion zone were determined for the assumed heat source model. Thermo-mechanical (TMC) simulation of the electron beam welding process using FEM is presented in the paper. The joining of two sheets, one made of commercially pure titanium Grade 2 and the other made of titanium alloy Grade 5 (Ti6Al4V), is analysed in the work. For the sheet welding process distributions of temperature, effective stress, and sheet deformation were calculated.

The influence of the titanium Grade 2 thermoplastic deformation on the nanoindenation properties

2021 ◽  
Vol 26 (2) ◽  
pp. 17-23
Author(s):  
Jakub Bańczerowski
Keyword(s):  
Mechanical Properties ◽  
Toxic Elements ◽  
High Strain ◽  
Pure Titanium ◽  
Young Modulus ◽  
Strain Rates ◽  
Stress Strain ◽  
Grain Fragmentation ◽  
Nanoindentation Hardness ◽  
Titanium Grade

Pure titanium is in biotechnology a desired material due to its excellent biocompatibility and the absence of toxic elements like a vandium or aluminium. Unfortunately, in comparison to widely used Ti6Al4V alloy it has low strenght properties. Therefore, the thermoplastic deformation was used as a means to improve its mechanical properties by the grain fragmentation. An experiment of samples compression in hightened temperature and various strain rates was conducted. The stress-strain curves and microstructure observations were made. Both indicated grain reduction. In the next step nanoindentation hardness and Young modulus measurments were made. The results indicate slight increase in hardness and stiffness in most cases. For the high strain rates a decrease in those values was observed.

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