A Variogram Analysis of Build Height Effects in an Additively Manufactured AlSi10Mg Part

被引：12

作者：

Everett, R. K. ^{[1
]}

Duffy, M. E. ^{[1
]}

Storck, S. M. ^{[2
]}

Zupan, M. ^{[1
]}

机构：

[1] Univ Maryland Baltimore Cty, Dept Mech Engn, 1000 Hilltop Circle, Baltimore, MD 21250 USA

[2] Johns Hopkins Univ, Appl Phys Lab, 11100 Johns Hopkins Rd, Laurel, MD 20723 USA

来源：

ADDITIVE MANUFACTURING | 2020年 / 35卷

关键词：

powder bed fusion; mechanical properties; micmtensile testing; spatial data analysis; variogram; MECHANICAL-PROPERTIES; SPATIAL VARIABILITY; MICROSTRUCTURE; LOCATION;

D O I：

10.1016/j.addma.2020.101306

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Variations in local processing parameters and conditions in additively manufactured materials make mechanical properties difficult to characterize. Microtensile testing is providing a wealth of information on these local property variations. Here we utilize spatial autocorrelation techniques to show autocorrelation of grain sizes and mechanical properties with build height in a specially-designed, additively manufactured AlSi10Mg part. This result suggests that, at least in some cases, an interplay between local part geometry and the fabrication process occurs that affects local mechanical properties.

引用

页数：10

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