NDLI: Production analysis of new machining-based deformation processes for nanostructured materials.

Content Provider	Springer Nature Link
Author	Iglesias, P. Moscoso, W. Mann, J.B. Saldana, C. Shankar, M. R. Chandrasekar, S. Compton, W. D. Trumble, K. P.
Copyright Year	2008
Abstract	Nanostructured materials, composed of sub-micron sized grains (crystals), show novel attributes not commonly found in their microcrystalline counterparts. Furthermore, these attributes can be varied by changing the grain size. Nanostructured solids have high hardness, strength and ductility; and interesting electrical and magnetic properties. Superplasticity has been observed at relatively low temperatures in some of these materials [1]. Many new and exciting applications of these materials have been sought; however, the cost of creating these materials, frequently quoted in excess of three hundred euros per kilogram [2], and an inability to make these on a large-scale with reproducible properties have restricted their broad application. We describe new machining-based manufacturing processes for making nanostructured alloys that are likely to be much less expensive. These processes are structured around chip formation by large-strain machining. It has been found that chips of a variety of metals and alloys produced during normal machining operations are composed entirely of nanocrystalline and/or ultrafine grained (UFG) structures of high hardness and strength [3-5]. Furthermore, by imposing a constraint to the chip at the point of its formation, it is feasible to produce nanostructured metals and alloys directly in bulk forms (e.g., sheet, bar, foil); the constrained chip formation process is called large-strain extrusion machining [6].
Starting Page	459
Ending Page	462
Page Count	4
File Format	PDF
ISSN	19606206
Journal	International Journal of Material Forming
Volume Number	1
Issue Number	1
e-ISSN	19606214
Language	English
Publisher	Springer-Verlag
Publisher Date	2008-04-26
Publisher Place	Paris
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Large strain machining Extrusion Nanostructured materials Microstructure refinement Computer-Aided Engineering (CAD, CAE) and Design Computational Intelligence Mechanical Engineering Manufacturing, Machines, Tools Materials Science Operating Procedures, Materials Treatment
Content Type	Text
Resource Type	Article
Subject	Materials Science

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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