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|a (TOE)ost40782
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|a (TOE)40782
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|a E 1.99:CONF-950201--13
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|a E 1.99:PNL-SA--26013
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|a E 1.99:CONF-950201--13
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|a PNL-SA--26013
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|a CONF-950201--13
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|a DE95009572
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|a Interfacial segregation and deformation of superplastically deformed Al-Mg-Mn alloys
|h [electronic resource]
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| 260 |
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|a Washington, D.C. :
|b United States. Dept. of Energy ;
|a Oak Ridge, Tenn. :
|b distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy,
|c 1995.
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| 300 |
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|a 9 p.
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| 336 |
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|a text
|b txt
|2 rdacontent.
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| 337 |
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|a computer
|b c
|2 rdamedia.
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| 338 |
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|a online resource
|b cr
|2 rdacarrier.
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|a Published through the Information Bridge: DOE Scientific and Technical Information.
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|a 03/01/1995.
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|a "PNL-SA--26013"
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|a "CONF-950201--13"
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|a "DE95009572"
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|a Annual meeting and exhibition of the Minerals, Metals and Materials Society (TMS), Las Vegas, NV (United States), 12-16 Feb 1995.
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|a Vetrano, J.S.; Lavender, C.A.; Bruemmer, S.M.
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| 520 |
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|a Microstructural and microchemical studies have been carried out on superplastically deformed Al-Mg-Mn (AA5083-type) alloys. Grain boundary composition was measured using a Scanning Auger Microprobe (SAM) and an Analytical Transmission Electron Microscope (ATEM), while conventional TEM was used for microstructural evaluation. Non-equilibrium segregation of Si to grain boundaries following deformation was measured by both techniques. Significant interfacial Si enrichment was only detected in gage sections of tensile specimens after uniaxial strains from 50 to 200%. Grip regions which experience identical thermal histories, but without plastic deformation, did not reveal Si segregation. Selected samples also showed a slight depletion of Mg at grain boundaries after deformation. The only reproducible observation of equilibrium segregation was in Zr-modified alloys, where Sn was detected by SAM in both the deformed and undeformed sections of the sample. Microstructural analysis documented subgrain formation and subgrain-precipitate interactions during superplastic deformation. In addition, many grain boundaries and precipitate interfaces contained small (5 to 20 nm) voids. Compositional analysis of these nano-voids revealed that they were enriched in Mg with the adjacent boundary regions correspondingly depleted.
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| 536 |
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|b AC06-76RL01830.
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| 650 |
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7 |
|a Aluminium Base Alloys.
|2 local.
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| 650 |
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7 |
|a Deformation.
|2 local.
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| 650 |
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7 |
|a Microstructure.
|2 local.
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| 650 |
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7 |
|a Magnesium Alloys.
|2 local.
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| 650 |
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7 |
|a Manganese Additions.
|2 local.
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| 650 |
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7 |
|a Segregation.
|2 local.
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| 650 |
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|a Grain Boundaries.
|2 local.
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| 650 |
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7 |
|a Plasticity.
|2 local.
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| 650 |
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|a Materials Science.
|2 edbsc.
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| 710 |
2 |
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|a Pacific Northwest Laboratory.
|4 res.
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| 710 |
2 |
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|a United States.
|b Department of Energy.
|4 spn.
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| 710 |
2 |
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|a Pacific Northwest National Laboratory (U.S.).
|4 res.
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| 710 |
2 |
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|a United States.
|b Department of Energy.
|b Office of Scientific and Technical Information.
|4 dst.
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| 856 |
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|u http://www.osti.gov/servlets/purl/40782-YlPOuJ/webviewable/
|z Online Access
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| 907 |
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|a .b56582407
|b 03-06-23
|c 12-20-09
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| 998 |
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|a web
|b 12-20-09
|c f
|d m
|e p
|f eng
|g dcu
|h 0
|i 1
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|a Information bridge
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|s d6c785f8-a4eb-57c6-ab02-d4eb4c4e98f7
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| 952 |
f |
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|p Can circulate
|a University of Colorado Boulder
|b Online
|c Online
|d Online
|e E 1.99:CONF-950201--13
|h Superintendent of Documents classification
|i web
|n 1
|
