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Topic Area: Metals
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Displaying records 41 to 50 of 66 records.
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41. 400-Fold Reduction in Saturation Field by Interlayering
Topic: Metals
Published: 1/13/2009
Authors: William F. Egelhoff Jr., John E Bonevich, Philip Pong, John Unguris, Robert D McMichael, Gery R Stafford, Carlos R Beauchamp
Abstract: The buildup of stress with increasing thickness of magnetic thin films is a common phenomenon that often induces undesirable saturation fields that can convert an otherwise magnetically soft film into a magnetically hard one. We have found that by i ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=854046

42. Phase Field Approach to Heterogeneous Crystal Nucleation in Alloys
Topic: Metals
Published: 1/11/2009
Authors: James A Warren, T Pusztai, L Kornyei, L Granasy
Abstract: We extend the phase field model of heterogeneous crystal nucleation developed recently [L. Granasy, T. Pusztai, D. Saylor, and J. A. Warren, Phys. Rev. Lett. 98, 035703 (2007)] to binary alloys. Three approaches are considered to incorporate foreign ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=900120

43. ADVANCED NON-DESTRUCTIVE HYDROGEN SENSORS TO PREVENT MATERIAL DEGRADATION FROM HYDROGEN DAMAGE
Topic: Metals
Published: 1/5/2009
Authors: Angelique N Lasseigne, Kamalu Koenig, David Olson, Brajendra Mishra, Joshua Jackson, Thomas Allen Siewert, Joseph David McColskey
Abstract: New higher strength pipeline steels (X100 and X120) exhibit lower tolerance for hydrogen (diffusible and formed hydrides) before significant degradation or failure occurs. It is essential to have advanced sensors to monitor the hydrogen content and ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=854112

44. Instrumented Impact Test: Impact Machine Variables and Specimen Position
Series: NIST Interagency/Internal Report (NISTIR)
Topic: Metals
Published: 1/5/2009
Author: Christopher N McCowan
Abstract: An investigation has been conducted on the influence of impact machine variables and specimen positioning on characteristic forces and absorbed energies from instrumented Charpy tests. Brittle and ductile fracture behavior has been investigated by te ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=854175

45. Instrumented Impact Tests: Effects of Machine Variables and Specimen Position
Topic: Metals
Published: 1/1/2009
Authors: Christopher N McCowan, Enrico Lucon
Abstract: An investigation has been conducted on the influence of impact machine variables and specimen positioning on characteristic forces and absorbed energies from instrumented Charpy tests. Brittle and ductile fracture behavior has been investigated by te ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=854171

46. Integrating methods for phase equilibria and phase property data determination
Topic: Metals
Published: 12/29/2008
Author: Ursula R Kattner
Abstract: Integrated Computational Materials Engineering (ICME) integrates computational tools for accelerated materials development, improved optimization processes in engineering design and easier transition between design and manufacturing. Data are one of ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=854437

47. Infrared emission imaging as a tool for characterization of hydrogen storage materials
Topic: Metals
Published: 12/6/2008
Authors: H. Oguchi, Edwin J Heilweil, Daniel Josell, Leonid A Bendersky
Abstract: Combinatorial thin films provide an opportunity for studying a variety of properties over a wide range of compositions and microstructures on a single substrate, allowing substantial acceleration of both the fabrication and study of materials and th ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=854436

48. Introduction to JOM Spotlight on Magnesium: Applications and Advanced Processing
Topic: Metals
Published: 11/1/2008
Author: Mark R Stoudt
Abstract: No abstract
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=854166

49. CTOA Measurements of Welds in X100 Pipeline Steel
Topic: Metals
Published: 10/3/2008
Authors: Elizabeth S Drexler, Philippe P. Darcis, Christopher N McCowan, John Matthew Treinen, Avigdor Shtechman, Roni Reuven, Thomas Allen Siewert, Robert Smith, J. Merritt, Joseph David McColskey
Abstract: A suite of tests characterizing X100 pipeline steels was initiated at the National Institute of Standards and Technology (NIST) in Boulder. Part of the test matrix included testing the toughness of the base metal, welds, and heat-affected zones (HAZ ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=854069

50. Mechanical and electrical coupling at metal-insulator-metal nano-scale contacts
Topic: Metals
Published: 5/22/2008
Authors: Doo-In Kim, Pradeep Narayanan Namboodiri, Frank W DelRio, Robert Francis Cook
Abstract: Mechanical and electrical coupling at nano-scale metallic contacts was investigated using a conducting-probe atomic force microscope (AFM). The current-voltage responses were non-Ohmic, symmetric about zero bias, with conductance values smaller than ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=854471



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