Properties and processing of nanocrystalline materials. Quarterly report

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Description

The present Report completes the investigations in the frame of the project for the first year. It is important to estimate our achievements in the investigation of properties of nanocrystalline materials obtained by severe plastic deformation and their production. We think that the main results obtained can be summarized as follows: (1) We performed an improvement of the die-set for equal channel (ECA) pressing and torsion under high pressure with the aim to increase dimensions of the samples produced and to conduct processing of low ductile materials. (2) It was established that in pure metals severe plastic deformation led to ... continued below

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55 p.

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Valiev, R.Z. January 22, 1996.

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This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. More information about this report can be viewed below.

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Description

The present Report completes the investigations in the frame of the project for the first year. It is important to estimate our achievements in the investigation of properties of nanocrystalline materials obtained by severe plastic deformation and their production. We think that the main results obtained can be summarized as follows: (1) We performed an improvement of the die-set for equal channel (ECA) pressing and torsion under high pressure with the aim to increase dimensions of the samples produced and to conduct processing of low ductile materials. (2) It was established that in pure metals severe plastic deformation led to the formation of an ultra fine-grained structure with a mean grain size of 100-200 nm, while in alloys due to severe plastic deformation and/or special methods of treatment (a decrease in the temperature of deformation, an increase of the pressure applied etc.) the grain size could be decreased down to a few tens of manometers.

Physical Description

55 p.

Notes

OSTI as DE97002593

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  • Other Information: PBD: 22 Jan 1996

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  • Other: DE97002593
  • Report No.: LA-SUB--96-32
  • Grant Number: W-7405-ENG-36
  • DOI: 10.2172/427010 | External Link
  • Office of Scientific & Technical Information Report Number: 427010
  • Archival Resource Key: ark:/67531/metadc687468

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Creation Date

  • January 22, 1996

Added to The UNT Digital Library

  • July 25, 2015, 2:20 a.m.

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  • Feb. 26, 2016, 3:37 p.m.

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Valiev, R.Z. Properties and processing of nanocrystalline materials. Quarterly report, report, January 22, 1996; New Mexico. (digital.library.unt.edu/ark:/67531/metadc687468/: accessed September 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.