Multi-Scale Texturing of Metallic Surfaces for High Performance Military Systems

Abstract

The focus of the present study was on establishing principles to support multi-scale surface texturing of metallic components for use in military performance applications. In this regard, two different surface texturing/modification methods were considered: Surface Severe Plastic Deformation (S2PD) and Modulation-Assisted Texturing (MAT). For S2PD, the effects of processing parameters on the resulting subsurface deformation field in terms of both mechanics and microstructure (e.g., microstructure, texture) were quantified for a unit model process as well as for an aggregate-level, strain-induced surface modification configuration. For MAT, the effects of surface texture form (e.g., micro-scale topography) on surface integrity measures and tribological wear performance were quantified. The ensuing results are useful as a preliminary step toward realizing a hybrid model-based processing framework for designing multi-functional surfaces with significantly enhanced mission-specific performance capabilities.

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Document Details

Document Type
Technical Report
Publication Date
Aug 17, 2015
Accession Number
AD1010413

Entities

People

  • Christopher Saldana
  • Robert C. Voigt

Organizations

  • Pennsylvania State University

Tags

Communities of Interest

  • Biomedical
  • Human Systems

DTIC Thesaurus Topics

  • Aluminum
  • Control Surfaces
  • Engineering
  • Frequency
  • Geometry
  • Grain Size
  • Light Sources
  • Machining
  • Materials
  • Measurement
  • Mechanical Properties
  • Mechanics
  • Phase
  • Plastic Deformation
  • Rake Angles
  • Students
  • Three Dimensional

Readers

  • Computational Modeling and Simulation
  • Materials Science (Mechanical Engineering).
  • Powder metallurgy of Titanium alloys.