Mechanical and microstructural evaluations of hot formed titanium sheets by electrical resistance heating process

Date

2013-08-20

Author

Ozturk, Fahrettin
Ece, Remzi Ecmel
Polat, Naki
Koksal, Arif
Evis, Zafer
Polat, Aytekin

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

229
views

0
downloads

In this study, effect of temperature in the electrical resistance heating process on mechanical properties and microstructures of commercially pure titanium grade 2 (CP2) and Ti-6Al-4V (T64) alloy sheets was investigated. Sheets were successfully heated by the electric resistance heating process, and their mechanical properties and microstructures were evaluated. Ductilities of both materials were increased significantly after 400 degrees C. Results indicate that no significant change was observed in grain sizes and microhardness of the materials. XRD analysis revealed that presence of secondary phases regarding oxidation of Ti was observed for 164 alloy above the manufacturer specified temperature ranges. However, no secondary phase was observed even above the manufacturer specified temperature ranges for CP2.

Subject Keywords

Mechanical Engineering, General Materials Science, Mechanics of Materials, Condensed Matter Physics

URI

https://hdl.handle.net/11511/47062

Journal

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING

DOI

https://doi.org/10.1016/j.msea.2013.04.079

Collections

Department of Engineering Sciences, Article

Suggestions

OpenMETU
Core

Electrical conductivity and Hall mobility in p-type TlGaSe2 crystals Qasrawi, AF; Hasanlı, Nızamı (Elsevier BV, 2004-07-02) Systematic dark electrical conductivity and Hall mobility measurements have been carried out in the temperature range of 200-350 K on p-type TlGaSe2 crystals. The analysis of the temperature-dependent electrical conductivity and carrier concentration reveals the extrinsic type of conduction with an acceptor impurity level located at 0.33 eV, and donor and acceptor concentrations of 9.0 x 10(15) and 1.3 x 10(16) cm(-3), respectively. A hole and electron effective masses of 0.520m(0) and 0.325m(0), respective...
Electrical, optical and surface characterization of reactive RF magnetron sputtered molybdenum oxide films for solar cell applications Mehmood, Haris; Bektaş, Gence; Yıldız, İlker; Tauqeer, Tauseef; Nasser, Hisham; Turan, Raşit (Elsevier BV, 2019-10-01) Thin films of molybdenum oxide (MoOx) were fabricated by radio frequency (RF) reactive magnetron sputtering technique with various oxygen flow rates and the deposition pressure fixed at 4 mTorr. The stoichiometry, composition, chemical binding energy, electrical, and optical properties of the sputtered MoOx films were examined. The deposited films were characterised by x-ray photoelectron spectroscopy (XPS), capacitance-voltage measurement (CV), spectroscopic ellipsometer (SE), and ultraviolet-visible spect...
Investigation of the variations in microstructure and mechanical properties of dual-matrix ductile iron by Magnetic Barkhausen Noise analysis Gür, Cemil Hakan; Erdogan, Mehmet (Informa UK Limited, 2008-01-01) The variations in the microstructure and tensile properties of dual-matrix ductile irons have been investigated non-destructively by Magnetic Barkhausen Noise (MBN) method. Specimens have been intercritically austenitised at 795 degrees C and 815 degrees C for 20 minutes, and then oil-quenched to obtain different martensite volume fractions. Two specimens, namely as-cast and oil-quenched from 900 degrees C, were prepared for comparison purpose. To investigate the effect of tempering, some specimens were tem...
Surfactant-modified multiscale composites for improved tensile fatigue and impact damage sensing Yesil, Sertan; Winkelrnann, Charles; Bayram, Göknur; La Saponara, Valeria (Elsevier BV, 2010-10-25) This paper documents the mechanical and electrical performance of self-sensing conductive polymer composites prepared with a low-cost technique and small hardware, able to considerably improve the dispersion and the surface adhesion of multi-walled carbon nanotubes (CNTs) in epoxy resin with respect to amine-modified CNTs and as-received CNTs. Surface treatment of the CNTs is performed using hexamethylene diamine, or a mix of sulfuric and nitric acid, and one of two surfactants (for the diamine treatment on...
Structural and temperature-dependent optical properties of thermally evaporated CdS thin films IŞIK, MEHMET; Gullu, H. H.; Delice, S.; Parlak, Mehmet; Hasanlı, Nızamı (Elsevier BV, 2019-04-01) In this work, structural and temperature dependent optical properties of thermally evaporated CdS thin films were investigated. X-ray diffraction, energy dispersive spectroscopy and Raman spectroscopy experiments were carried out to characterize the thin films and obtain information about the crystal structure, atomic composition, surface morphology and vibrational modes. Temperature-dependent transmission measurements were performed in between 10 and 300 K and in the spectral range of 400-1050 nm. The anal...

Citation Formats

F. Ozturk, R. E. Ece, N. Polat, A. Koksal, Z. Evis, and A. Polat, “Mechanical and microstructural evaluations of hot formed titanium sheets by electrical resistance heating process,” MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, pp. 207–214, 2013, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/47062.