Machining of Pure High Grade Titanium: Effect on the Subsurface Microstructure

doi:10.15344/2455-2372/2015/108

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International Journal of Metallurgical & Materials Engineering Volume 1 (2015), Article ID 1:IJMME-108, 5 pages
http://dx.doi.org/10.15344/2455-2372/2015/108

Research Article

Machining of Pure High Grade Titanium: Effect on the Subsurface Microstructure

A. Tidu^1*, A. De Saever², C. Schuman², B Bolle¹ and P. Chevrier³

¹Laboratoire d’Étude des Microstructures et de Mécanique des Matériaux (LEM3), CNRS 7239, École Nationale d’Ingénieurs de Metz (ENIM), 1 route d’Ars Laquenexy, F-57012 Metz Cedex 01, France
²Laboratoire d’Étude des Microstructures et de Mécanique des Matériaux (LEM3), CNRS 7239, Université de Lorraine, ile du Saulcy, F-57045 Metz Cedex 01, France
³Laboratoire de mécanique Biomécanique, Polymère Structures (LaBPS), EA 1097 , 1 route d’Ars Laquenexy, École Nationale d’Ingénieurs de Metz (ENIM), F-57012 Metz Cedex 01, France

Corresponding Author Details: A. Tidu, Laboratoire d’Étude des Microstructures et de Mécanique des Matériaux (LEM3), CNRS 7239, École Nationale d’Ingénieurs de Metz (ENIM), F-57012 Metz Cedex 01, France; E-mail: tidu@enim.fr

Received: 26 April 2015; Accepted: 29 June 2015; Published: 30 June 2015

Citation: Tidu A, De Saever A, Schuman C, Bolle B, Chevrier P (2015) Machining of Pure High Grade Titanium: Effect on the Subsurface Microstructure. Int J Metall Mater Eng 1: 108. doi: http://dx.doi.org/10.15344/2455-2372/2015/108

Copyright: © 2015 Tidu et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

This study has been made to characterize the plastically subsurface layer after orthogonal cutting of on high grade Ti-5N unalloyed titanium with a mean grain size of about 0.5 to 1.8mm. A home-made sample holder has been specially developed for these experiments and SEM EBSD technique is used to characterized the subsurface layer. In function of the cutting conditions, we have found in subsurface glide (when the cutting speed is low) and when the cutting speed is high some compression twins but also some tension twins which indicated that we have tensile stress state ahead of the tool tip.

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