Rapid Melt and Resolidification of Surface Layers Using Intense, Pulsed Ion Beams Final Report

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Description

The emerging technology of pulsed intense ion beams has been shown to lead to improvements in surface characteristics such as hardness and wear resistance, as well as mechanical smoothing. We report hereon the use of this technology to systematically study improvements to three types of metal alloys - aluminum, iron, and titanium. Ion beam tieatment produces a rapid melt and resolidification (RMR) of the surface layer. In the case of a predeposited thin-fihn layer, the beam mixes this layer into the substrate, Ieading to improvements that can exceed those produced by treatment of the alloy alone, In either case, RMR ... continued below

Creation Information

Renk, Timothy J. Turman, Bob Senft, Donna Sorensen, Neil R. Stinnett, Regan Greenly, John B. Thompson, Michael O. Buchheit, Rudolph G. October 2, 1998.

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  • Sandia National Laboratories
    Publisher Info: Sandia National Laboratories, Albuquerque, NM, and Livermore, CA
    Place of Publication: Albuquerque, New Mexico

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Description

The emerging technology of pulsed intense ion beams has been shown to lead to improvements in surface characteristics such as hardness and wear resistance, as well as mechanical smoothing. We report hereon the use of this technology to systematically study improvements to three types of metal alloys - aluminum, iron, and titanium. Ion beam tieatment produces a rapid melt and resolidification (RMR) of the surface layer. In the case of a predeposited thin-fihn layer, the beam mixes this layer into the substrate, Ieading to improvements that can exceed those produced by treatment of the alloy alone, In either case, RMR results in both crystal refinement and metastable state formation in the treated surface layer not accessible by conventional alloy production. Although more characterization is needed, we have begun the process of relating these microstructural changes to the surface improvements we discuss in this report.

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  • Other: DE00000703
  • Report No.: SAND98-2101
  • Grant Number: AC04-94AL85000
  • Office of Scientific & Technical Information Report Number: 703
  • Archival Resource Key: ark:/67531/metadc703549

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  • October 2, 1998

Added to The UNT Digital Library

  • Sept. 12, 2015, 6:31 a.m.

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  • May 6, 2016, 11:04 p.m.

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Renk, Timothy J. Turman, Bob Senft, Donna Sorensen, Neil R. Stinnett, Regan Greenly, John B. Thompson, Michael O. Buchheit, Rudolph G. Rapid Melt and Resolidification of Surface Layers Using Intense, Pulsed Ion Beams Final Report, report, October 2, 1998; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc703549/: accessed September 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.