Characterizing primary dendritic microstructures to quantify the processing-structure-property relationship in single crystal nickel-based superalloys

M. A. Tschopp, A. L. Oppedal, J. D. Miller, M. A. Groeber, A. H. Rosenberger, Kiran Solanki

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Characterizing the spacing of primary dendrite arms in directionally- solidified microstructures is an important step for developing process-structure-property relationships by enabling the quantification of (i) the influence of processing on microstructure and (ii) the influence of microstructure on properties. The research objective herein is to evaluate the capability of various conventional approaches, as well as new or modified approaches, for spatial point pattern analysis with application to characterizing experimental dendritic microstructures. Both computer-generated and experimental dendritic microstructures are used for this analysis along with numerous techniques based on the nearest neighbor spacing, Voronoi tessellation, Delaunay triangulation, or graph theory. Comparison of new metrics with traditional primary dendrite arm spacing metrics will also be discussed for both local and global measures. The current methods investigated will supply information of local spacing and coordination number while addressing edge effects, parameter sensitivity, and correlation with interdendritic features, thus providing insight into how processing affects properties.

Original languageEnglish (US)
Title of host publicationCharacterization of Minerals, Metals, and Materials 2013 - Held During the TMS 2013 Annual Meeting and Exhibition
Pages301-310
Number of pages10
StatePublished - Apr 25 2013
EventCharacterization of Minerals, Metals, and Materials 2013 - TMS 2013 Annual Meeting and Exhibition - San Antonio, TX, United States
Duration: Mar 3 2013Mar 7 2013

Publication series

NameTMS Annual Meeting

Other

OtherCharacterization of Minerals, Metals, and Materials 2013 - TMS 2013 Annual Meeting and Exhibition
CountryUnited States
CitySan Antonio, TX
Period3/3/133/7/13

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Keywords

  • Dendrite arm spacing
  • Structure-Property relationship
  • Superalloy

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys

Cite this

Tschopp, M. A., Oppedal, A. L., Miller, J. D., Groeber, M. A., Rosenberger, A. H., & Solanki, K. (2013). Characterizing primary dendritic microstructures to quantify the processing-structure-property relationship in single crystal nickel-based superalloys. In Characterization of Minerals, Metals, and Materials 2013 - Held During the TMS 2013 Annual Meeting and Exhibition (pp. 301-310). (TMS Annual Meeting).