Temperature Dependency of Friction of Titanium Alloy by Forward Rod-Backward can Combined Extrusion Test

Genki Nishi; Yoshihiro Kubota; Kunio Hayakawa; Tamotsu Nakamura

doi:10.4028/p-84u9r8

Paper Titles

Tribological Behavior of High-Strength Aluminum Alloys in Combination with Dry Lubricants at High Forming Temperatures
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Effect of Die Coating on Tearing in Hot Extrusion of 7075 Aluminum Alloy
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Heat Transfer Coefficient of Zinc Phosphate Coating with Metal Soap during Cold Backward Extrusion
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Optimization of the Steady Combined Forward and Backward Extrusion Test for Higher Sensitivity to Friction in Cold Forging
p.147

Investigation on the Influence of the Tribological System on Cold Forging and Ejection of Hollow Components with Helical Internal Geometry
p.155

Temperature Dependency of Friction of Titanium Alloy by Forward Rod-Backward can Combined Extrusion Test
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Experimental Investigation on Slip Conditions during Thread Rolling with Flat Dies
p.169

Friction Stir Powder Incremental Forming for Fabrication of Sandwich-Structured Composite of Open-Cell Nickel Foam with Aluminum
p.179

Influence of Tool pin Profiles in Friction Stir Welding of Aluminum Alloy and Polycarbonate
p.185

HomeDefect and Diffusion ForumDefect and Diffusion Forum Vol. 414Temperature Dependency of Friction of Titanium...

Temperature Dependency of Friction of Titanium Alloy by Forward Rod-Backward can Combined Extrusion Test

Abstract:

Forward rod-backward can combined extrusion test was used to investigate the tribological properties of Ti-6Al-4V titanium alloy with oxide film at cold and warm forging conditions. 0.08 and 0.10 µm-thick oxide films were formed on the test piece by atmospheric oxidation treatment. A friction test was performed without using lubricants. As a result, the oxide film was effective to prevent seizure at cold forging condition, where the friction coefficient was estimated as about 0.15. However, at warm forging condition, a decohesion of the oxide film and seizure occurred, where the estimated friction coefficient was larger than that at cold forging condition. Furthermore, thickening the oxide film was effective against the decohesion and to reduce the friction coefficient.

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Periodical:

Defect and Diffusion Forum (Volume 414)

Pages:

163-168

DOI:

https://doi.org/10.4028/p-84u9r8

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Online since:

February 2022

Authors:

Genki Nishi, Yoshihiro Kubota, Kunio Hayakawa*, Tamotsu Nakamura

Keywords:

Forward Extrusion, Seizure, Titanium Alloys, Tribology

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