Tensile properties of gas tungsten arc weldments in commercially pure titanium, Ti–6Al–4V and Ti–15V–3Al–3Sn–3Cr alloys at different strain rates

2004 ◽  
Vol 9 (5) ◽  
pp. 415-422 ◽  
Author(s):  
S.H. Wang ◽  
M.D. Wei
Keyword(s):  
Tensile Properties ◽  
Pure Titanium ◽  
Strain Rates ◽  
Commercially Pure Titanium ◽  
Gas Tungsten Arc ◽  
Commercially Pure ◽  
Gas Tungsten

Thermomechanical Response of Commercially Pure Titanium under Large Plastic Deformation at High Strain Rates

2012 ◽  
Vol 548 ◽  
pp. 174-178 ◽  
Author(s):  
Chong Yang Gao ◽  
Wei Ran Lu
Keyword(s):  
Pure Titanium ◽  
Optimal Solution ◽  
Optimization Method ◽  
Strain Rates ◽  
Commercially Pure Titanium ◽  
Thermomechanical Response ◽  
Commercially Pure ◽  
Different Temperatures ◽  
Cp Ti ◽  
Constitutive Parameters

By using a dislocation-based plastic constitutive model for hcp metals developed by us recently, the dynamic thermomechanical response of an important industrial material, commercially pure titanium (CP-Ti), was described at different temperatures and strain rates. The constitutive parameters of the material are determined by an efficient optimization method for a globally optimal solution. The model can well predict the dynamic response of CP-Ti by the comparison with experimental data and the Nemat-Nasser-Guo model.

BIBUS METALS TITAN GRADE 1

Alloy Digest ◽  
2021 ◽  
Vol 70 (11) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Physical Properties ◽  
Tensile Properties ◽  
Pure Titanium ◽  
Heat Treating ◽  
Commercially Pure Titanium ◽  
Commercially Pure ◽  
Continuous Service

Abstract Bibus Metals Titan Grade 1 is an unalloyed commercially pure titanium. It has the highest purity, lowest strength, and best ductility and formability of the four ASTM unalloyed titanium grades. This grade has excellent resistance to corrosion in highly oxidizing to mildly reducing environments, including chlorides. Bibus Metals Titan Grade 1 can be used in continuous service up to 425 °C (795 °F) and in intermittent service up to 540 °C (1000 °F). This datasheet provides information on composition, physical properties, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, and joining. Filing Code: Ti-184. Producer or source: Bibus Metals AG.

scholarly journals Synchronized Full-Field Strain and Temperature Measurements of Commercially Pure Titanium under Tension at Elevated Temperatures and High Strain Rates

Metals ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 25
Author(s):  
Guilherme Corrêa Soares ◽  
Mikko Hokka
Keyword(s):  
Elevated Temperatures ◽  
High Strain ◽  
Pure Titanium ◽  
Heating System ◽  
Strain Rates ◽  
Commercially Pure Titanium ◽  
High Strain Rates ◽  
Noise Floor ◽  
Full Field ◽  
Commercially Pure

Understanding the mechanical behavior of materials at extreme conditions, such as high temperatures, high strain rates, and very large strains, is fundamental for applications where these conditions are possible. Although tensile testing has been used to investigate material behavior under high strain rates and elevated temperatures, it disregards the occurrence of localized strains and increasing temperatures during deformation. The objective of this work is to combine synchronized full-field techniques and an electrical resistive heating system to investigate the thermomechanical behavior of commercially pure titanium under tensile loading at high temperatures and high strain rates. An electrical resistive heating system was used to heat dog-bone samples up to 1120 °C, which were then tested with a tensile Split Hopkinson Pressure Bar at strain rates up to 1600 s−1. These tests were monitored by two high-speed optical cameras and an infrared camera to acquire synchronized full-field strain and temperature data. The displacement and strain noise floor, and the stereo reconstruction error increased with temperature, while the temperature noise floor decreased at elevated temperatures. A substantial decrease in mechanical strength and an increase in ductility were observed with an increase in testing temperature. The localized strains during necking were much higher at elevated temperatures, while adiabatic heating was much lower or non-existent at elevated temperatures.

Improvement in Ductility in Commercially Pure Titanium Alloys by Stress Relaxation at Room Temperature

2014 ◽  
Vol 611-612 ◽  
pp. 92-98 ◽  
Author(s):  
Irena Eipert ◽  
Giribaskar Sivaswamy ◽  
Rahul Bhattacharya ◽  
Muhammad Amir ◽  
Paul Blackwell
Keyword(s):  
Stress Relaxation ◽  
Titanium Alloys ◽  
Yield Point ◽  
Room Temperature ◽  
Pure Titanium ◽  
Tensile Tests ◽  
Tensile Behaviour ◽  
Strain Rates ◽  
Commercially Pure Titanium ◽  
Commercially Pure

Present work focusses on the effect of stress relaxation on the tensile behaviour of two commercially pure titanium alloys of different strength levels (Grade 1 and Grade 4) subjected to tensile tests at room temperature. The stress relaxation tests were performed by interrupting the tensile tests at regular strain intervals of 5% in the plastic region of the tensile curve and compared to the monotonic tensile tests at different strain rates ranging from 10-4to 10-1s-1. To understand the effect of anisotropy, samples were taken along 0° and 90° to rolling direction (RD) for both the alloys. Improvement in ductility of different levels at all the strain rates was observed in both the alloys when stress relaxation steps were introduced as compared to monotonic tests. However there is not much change in the flow stress as well as in strain hardening behaviour of the alloys. The true stress-true strain curves of Grade 4 samples taken in 90° to RD exhibited discontinuous yielding phenomenon after the yield point, which is termed as a yield-point elongation (YPE). The improvement in ductility of the Cp-Ti alloys can be linked to recovery process occurring during the stress relaxation steps which resulted in the improvement in ductility after repeated interrupted tensile tests. The paper presents and summarise the results based on the stress relaxation for the two different alloys.

scholarly journals Biaxial Tensile Behavior of Commercially Pure Titanium under Various In-Plane Load Ratios and Strain Rates

Metals ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 155
Author(s):  
Wei Zhang ◽  
Zhikang Zhu ◽  
Changyu Zhou ◽  
Xiaohua He
Keyword(s):  
Tensile Strength ◽  
Strain Rate ◽  
Tensile Deformation ◽  
Pure Titanium ◽  
Load Ratio ◽  
Tensile Behavior ◽  
Strain Rates ◽  
Commercially Pure Titanium ◽  
Commercially Pure ◽  
Biaxial Tensile

The aim of the present work is to contribute to the characterization of the biaxial tensile behavior of commercially pure titanium, under various in-plane loading conditions at room temperature, by a non-contact digital image correlation system. Several loading conditions, with load ratio ranging from 4:0 to 0:4 and displacement rate ranging from 0.001 to 0.1 mm/s, are examined. It is found that the yield strength and ultimate tensile strength of biaxial sample are greater than that of uniaxial sample, where the equi-biaxial sample shows the highest strength. It is also observed that increase in strain rate leads to remarkable improvement of tensile strength. Fractographic analysis indicates that the shape and size of dimples are load ratio and strain rate dependent. Additionally, a modified Johnson–Cook constitutive model was proposed to account for the effect of strain rate on biaxial tensile deformation. The experimental results are in good agreement with the simulated results, indicating that the proposed model is reliable to predict biaxial tensile deformation of commercially pure titanium at different strain rates.

scholarly journals Tensile properties of α-titanium alloys at elevated temperatures

2020 ◽  
Vol 321 ◽  
pp. 04016
Author(s):  
Tarik Nawaya ◽  
Werner Beck ◽  
Axel von Hehl
Keyword(s):  
Titanium Alloys ◽  
Tensile Properties ◽  
Oxidation Resistance ◽  
Elevated Temperatures ◽  
Pure Titanium ◽  
High Strength ◽  
Tensile Tests ◽  
Commercially Pure Titanium ◽  
Commercially Pure ◽  
Gleeble 3500

Hot-deep drawing is an innovative processing technology to produce complex shaped sheet metal components with constant wall thickness from high-strength lightweight materials. For some aerospace and automotive applications oxidation resistance at medium to high temperatures is an important aspect. In terms of this titanium α-alloys are often used due to their balanced relation of strength and oxidation resistance. In the presented study the stress-strain characteristics of several α-titanium alloys were determined at ambient and elevated temperatures by means of hot tensile tests. Besides the commercially pure Titanium alloy ASTM-Grade 4, two novel α-titanium alloys were investigated. Regarding the hot forming properties a comparison with α-β Ti-6Al-4V alloy was conducted. The hot tensile tests were carried out by means of a particular forming dilatometer type “Gleeble 3500” at 400, 500, 600, 650, 700 and 800 °C. The test showed favorable peak plasticity for all α-alloys at the temperature range between 600 and 650 °C in contrast to lower or higher temperatures. All samples were metallographically characterized. Key words: titanium α-alloys, hot tensile properties, elevated temperatures, Gleeble 3500.

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