Studies of near-surface phenomena and erosion mechanisms in metallic alloys using single- and multi-particle impacts

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Description

An experimental study of the effects of material properties on erosion mechanisms was conducted by subjecting targets to single as well as multiple impacts of spherical particles at various velocities. A mechanical properties microprobe was used to monitor the hardening due to the impacts. Initial studies on several engineering alloys showed that work hardening was associated with single impacts, and the results suggested that the capacity to distribute the impact energy over large volumes improved a material's erosion resistance. Studies also showed that the alloys work hardened significantly under multiple-particle impacts. Single-particle impact studies were found to correlate well with ... continued below

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Pages: (125 p)

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Rao, M. & Keiser, J.R. March 1, 1992.

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Description

An experimental study of the effects of material properties on erosion mechanisms was conducted by subjecting targets to single as well as multiple impacts of spherical particles at various velocities. A mechanical properties microprobe was used to monitor the hardening due to the impacts. Initial studies on several engineering alloys showed that work hardening was associated with single impacts, and the results suggested that the capacity to distribute the impact energy over large volumes improved a material's erosion resistance. Studies also showed that the alloys work hardened significantly under multiple-particle impacts. Single-particle impact studies were found to correlate well with results from low-velocity, multiple-particle erosion experiments. (VC)

Physical Description

Pages: (125 p)

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OSTI; NTIS; GPO Dep.

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  • Other: DE92014921
  • Report No.: ORNL/TM-11946
  • Grant Number: AC05-84OR21400
  • DOI: 10.2172/5237166 | External Link
  • Office of Scientific & Technical Information Report Number: 5237166
  • Archival Resource Key: ark:/67531/metadc1069245

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Office of Scientific & Technical Information Technical Reports

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Creation Date

  • March 1, 1992

Added to The UNT Digital Library

  • Feb. 4, 2018, 10:51 a.m.

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  • March 1, 2018, 8:11 p.m.

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Rao, M. & Keiser, J.R. Studies of near-surface phenomena and erosion mechanisms in metallic alloys using single- and multi-particle impacts, report, March 1, 1992; Tennessee. (digital.library.unt.edu/ark:/67531/metadc1069245/: accessed December 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.