Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/88925

Title

Microstructural evolution in chips during machining of commercially pure (grade 2) titanium

Author(s)

Sun, Shoujin;  Brandt, Milan;  Song, Wei Qian;  Dargusch, Matthew S.

Abstract

Development of microstructure in chips during machining of Grade 2 titanium at different cutting speeds has been investigated. The morphology of the chip changes from continuous chip to irregular and regular segmented chip with increasing cutting speed. The deformation in continuous and segmented chips is characterized as continuous and localized shear respectively. The deformation mechanism in the irregular segmented chip is the dislocation slip in the continuous region and twinning around the localized shear. Deformation twinning was observed inside the segment between the shear bands in the regular segmented chip. These deformation twins are responsible for the hardening inside the segment.

Publication type

Journal article

Research centre

Swinburne University of Technology. Faculty of Engineering and Industrial Sciences. Industrial Research Institute Swinburne

Source

Materials Science Forum: proceedings of the Pacific Rim International Conference on Advanced Materials and Processing (PRICM-7), Cairns, Queensland, Australia, 02-06 August 2010, Vol. 654-656 (2010), pp. 823-826

Publication year

2010

FOR Code(s)

0912 Materials Engineering;  1007 Nanotechnology

Keyword(s)

Chips;  Deformation twinning;  Grain refinement;  Machining;  Microstructures;  Titanium

Publisher

Trans Tech Publications

ISSN

1662-9752

Publisher URL

http://dx.doi.org/10.4028/www.scientific.net/MSF.654-656.823

Copyright

Copyright © (2010) Trans Tech Publications.

Peer reviewed