Accession Number:

ADA566104

Title:

Quantifying the Effect of 3D Spatial Resolution on the Accuracy of Microstructural Distributions (PREPRINT)

Descriptive Note:

Technical paper, 1 Jul-1 Aug 2012

Corporate Author:

AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH STRUCTURAL MATERIALS DIV

Personal Author(s):

• Uchic, Michael D.
• Groeber, Michael
• Shah, Megna
• Loughnane, Gregory
• Srinivasan, Raghavan
• Grandhi, Ramana
• Riley, Matthew

Report Date:

2012-08-01

Pagination or Media Count:

11.0

Abstract:

The choice of spatial resolution for experimentally-collected 3D microstructural data is often governed by general rules of thumb. For example, serial section experiments often strive to collect at least ten sections through the average feature-of-interest. However, the desire to collect high resolution data in 3D is greatly tempered by the exponential growth in collection times and data storage requirements. This paper explores the use of systematic down-sampling of synthetically-generated grain microstructures to examine the effect of resolution on the calculated distributions of microstructural descriptors such as grain size, number of nearest neighbors, aspect ratio, and the third moment invariant.

Descriptors:

• *MICROSTRUCTURE
• GRAIN SIZE
• MATERIALS
• SYMPOSIA
• THREE DIMENSIONAL

Subject Categories:

• Properties of Metals and Alloys

Distribution Statement:

APPROVED FOR PUBLIC RELEASE