The Effect of Heat Treatment on the Mechanical Behavior of Commercially Pure Titanium and Zirconium Under Quasi-static and Dynamic Loading

2022 ◽  
Author(s):  
Sagi Chen ◽  
Daniel Tubul ◽  
Arie Venkert ◽  
Daniel Rittel
Keyword(s):  
Heat Treatment ◽  
Mechanical Behavior ◽  
Dynamic Loading ◽  
Pure Titanium ◽  
Commercially Pure Titanium ◽  
Commercially Pure ◽  
Static And Dynamic Loading

Microstructure evolution and mechanical behavior of severe shot peened commercially pure titanium

Vacuum ◽  
2014 ◽  
Vol 110 ◽  
pp. 202-206 ◽  
Author(s):  
Okan Unal ◽  
A. Cahit Karaoglanli ◽  
Remzi Varol ◽  
Akira Kobayashi
Keyword(s):  
Mechanical Behavior ◽  
Microstructure Evolution ◽  
Pure Titanium ◽  
Commercially Pure Titanium ◽  
Commercially Pure

scholarly journals Dislocation Density-Based Grain Refinement Modeling of Orthogonal Cutting of Commercially Pure Titanium

2011 ◽  
Author(s):  
Hongtao Ding ◽  
Yung C. Shin
Keyword(s):  
Grain Size ◽  
Finite Element ◽  
Dislocation Density ◽  
Mechanical Behavior ◽  
Grain Refinement ◽  
Orthogonal Cutting ◽  
Pure Titanium ◽  
Commercially Pure Titanium ◽  
Commercially Pure ◽  
Cp Ti

Recently, machining has been exploited as a means for producing ultra-fine grained (UFG) and nanocrystalline microstructures for various metal materials, such as aluminum alloys, copper, stainless steel, titanium and nickel-based super alloys, etc. However, no predictive, analytical or numerical work has ever been presented to quantitatively predict the change of grain sizes during machining. In this paper, a dislocation density-based viscoplastic model is adapted for modeling the grain size refinement mechanism during machining by means of a finite element based numerical framework. A novel Coupled Eulerian-Lagrangian (CEL) finite element model embedded with the dislocation density subroutine is developed to model the severe plastic deformation and grain refinement during a steady-state cutting process. The orthogonal cutting tests of a commercially pure titanium (CP Ti) material are simulated in order to assess the validity of the numerical solution through comparison with experiments. The dislocation density-based material model is calibrated to reproduce the observed material constitutive mechanical behavior of CP Ti under various strains, strain rates and temperatures in the cutting process. It is shown that the developed model captures the essential features of the material mechanical behavior and predicts a grain size of 100–160 nm in the chips of CP Ti at a cutting speed of 10 mm/s.

Enhancement of Microstructural and Hardness Properties of Commercially Pure Titanium (Ti-0.5Zn) by Thermomechanical Processing

2013 ◽  
Vol 824 ◽  
pp. 275-282 ◽  
Author(s):  
Oluwagbenga T. Johnson ◽  
Olayinka O. Awopetu ◽  
Olurotimi A. Dahunsi
Keyword(s):  
Heat Treatment ◽  
Thermomechanical Processing ◽  
Density Ratio ◽  
Pure Titanium ◽  
High Strength ◽  
Commercially Pure Titanium ◽  
Β Phase ◽  
Commercially Pure ◽  
Hardness Property ◽  
Equiaxed Grains

Titanium alloys are widely used in the aerospace, biotechnology, automotive, energy, marine industrial constructions and components due to their high strength-to-density ratio, excellent fatigue/crack propagation behaviour and corrosion resistance. This study investigates the αβ phase transformation which Ti-0.5Zn alloy undergoes on being subjected to heat treatment with the aim of improving its properties and to enhance its industrial application. The β phase, with Widmatansttäten type growth was produced by heat treatment of the alloy in the temperature range of 800°C to 1000°C. The resultant microstructure and hardness of the alloy was also investigated. The result showed improved morphology evidenced by transformation from the equiaxed grains to more lamellar structures in the samples. Hardness property improved by 20% too.

scholarly journals Effect of Electric Current Heat Treatment on Commercially Pure Titanium Sheets

Metals ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 783
Author(s):  
Chan-Hyeok Lee ◽  
Seong-Woo Choi ◽  
P. L. Narayana ◽  
Thi Anh Nguyet Nguyen ◽  
Sung-Tae Hong ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Electric Current ◽  
Pure Titanium ◽  
Commercially Pure Titanium ◽  
Heat Treated Sample ◽  
Commercially Pure ◽  
Heat Treated ◽  
Conventional Heat Treatment ◽  
Cold Rolled ◽  
Current Heat

Rapid electric current heat treatment has been successfully applied to a cold-rolled sheet of commercially pure titanium (CP Ti). The electric current heat treatment was conducted at various temperatures (400, 500, 600 and 700 ∘C) by altering the current density (A/mm2). The detailed microstructure and texture evolution was studied using electron backscatter and X-ray diffraction analysis. For comparison, conventional heat treatment at 400, 500 and 600 ∘C were also applied to the cold-rolled sheets. The electrically heat-treated sample showed a much smaller and uniform grain size with a relatively weak texture than the conventionally heat-treated one. As a result, the electrically heat-treated samples exhibited better tensile properties than conventionally heat-treated samples. Furthermore, the electric current treatment produced minimum sheet distortion and good oxidation resistance compared with the conventional heat treatment.

Mechanical Behavior and Deformation Modes of Commercially Pure Titanium under Impact Tensile Load

2006 ◽  
Vol 43 (12) ◽  
pp. 629-636
Author(s):  
Q. Y. Sun ◽  
R. H. Zhu ◽  
Z. T. Yu ◽  
H. C. Gu
Keyword(s):  
Mechanical Behavior ◽  
Pure Titanium ◽  
Tensile Load ◽  
Commercially Pure Titanium ◽  
Commercially Pure ◽  
Deformation Modes
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