Accession Number : AD1010413


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


Descriptive Note : Technical Report,18 Aug 2014,17 May 2015


Corporate Author : Pennsylvania State University University Park United States


Personal Author(s) : Saldana,Christopher ; Voigt,Robert C


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/1010413.pdf


Report Date : 17 Aug 2015


Pagination or Media Count : 22


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.


Descriptors :   surface finishing , surface properties , computational modeling , metal , tribology , military applications , microstructure , deformation (mechanics) , experimental design , finite element analysis


Subject Categories : Fabrication Metallurgy
      Mechanics
      Operations Research
      Fabrication Metallurgy
      Mechanics
      Operations Research


Distribution Statement : APPROVED FOR PUBLIC RELEASE